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Haplogroup E-V68

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Haplogroup E-V68
Possible time of origin~24,100 years BP[1]
Possible place of originEgypt/Libya[2] or northern Sudan/southern Egypt[3]
AncestorE-M215/M35
DescendantsE-M78
Defining mutationsV68, L539, L546

Haplogroup E-V68, also known as E1b1b1a, is a major human Y-chromosome DNA haplogroup found in North Africa, the Horn of Africa, Western Asia and Europe. It is a subclade of the larger haplogroup E1b1b-M215/M35. The E1b1b1a lineage is identified by the presence of a single nucleotide polymorphism (SNP) mutation on the Y chromosome, which is known as V68. It is a subject of discussion and study in genetics as well as genetic genealogy, archaeology, and historical linguistics.

E-V68 is dominated by its longer-known subclade E-M78. In various publications, both E-V68 and E-M78 have been referred to by other names, especially phylogenetic nomenclature such as "E3b1a" which are designed to show their place on the family tree of all humans. These various names change as new discoveries are made and are discussed below.

Origins

The Nile River and its main tributaries: a probable corridor of ancient human migrations, including those involving the Y DNA lineages E-M243, E-M78, E-V12, and E-V22.

E-M78, like its parent clade E-V68, is thought to have an African origin. Based on genetic STR variance data, Cruciani et al. (2007) suggests that this subclade originated in "Northeastern Africa", which in the study refers specifically to the region of Egypt and Libya.[4]

Prior to Cruciani et al. (2007), Semino et al. (2004) had proposed a place of origin for E-M78 further south in East Africa. This was because of the high frequency and diversity of E-M78 lineages in the region of Ethiopia. However, Cruciani et al. (2007) were able to study more data, and concluded that the E-M78 lineages in the Horn of Africa were dominated by relatively recent branches (see E-V32 below). They concluded that the region of Egypt was the likely place of origin of E-M78 based on "the peripheral geographic distribution of the most derived subhaplogroups with respect to northeastern Africa, as well as the results of quantitative analysis of UEP and microsatellite diversity".

Cruciani et al. (2007) also note this as evidence for "a corridor for bidirectional migrations" between Northeast Africa (Egypt and Libya in their data) on the one hand and East Africa on the other. Because Cruciani et al. (2007) also proposed that E-M35, the parent clade of E-M78, originated in East Africa during the paleolithic and subsequently spread to the region of Egypt. E-M78 in East Africa, is therefore the result of a back migration. The authors believe there were "at least 2 episodes between 23.9–17.3 ky and 18.0–5.9 ky ago".

Another probable migration to the south from Egypt was noted by Hassan et al. (2008) based upon their survey of Sudan. Specifically E-V12 and E-V22, "might have been brought to Sudan from North Africa after the progressive desertification of the Sahara around 6,000-8,000 years ago".

Northwards from Egypt and Libya, E-M78 migrated into the Middle East, but additionally Trombetta et al. (2011) proposed that the earlier E-V68 carrying population may have migrated by sea directly from Africa to southwestern Europe, because they observed cases of E-V68* (without the M78 mutation) only in Sardinia, and not in the Middle Eastern samples. Concerning E-M78, like other forms of E-V68 there is evidence of multiple routes of expansion out of an African homeland.

On the other hand, while there were apparently direct migrations from North Africa to Iberia and Southern Italy (of people carrying E-V68*, E-V12, E-V22, and E-V65), the majority of E-M78 lineages found in Europe belong to the E-V13 sub-clade which appears to have entered Europe at some time undeterminded from the Near East, where it apparently originated, via the Balkans.

Coming to similar conclusions as the Cruciani and Trombetta team, Battaglia et al. (2008), writing prior to the discovery of E-V68, describe Egypt as "a hub for the distribution of the various geographically localized M78-related sub-clades" and, based on archaeological data, they propose that the point of origin of E-M78 (as opposed to later dispersals from Egypt) may have been in a refugium which "existed on the border of present-day Sudan and Egypt, near Lake Nubia, until the onset of a humid phase around 8500 BC. The northward-moving rainfall belts during this period could have also spurred a rapid migration of Mesolithic foragers northwards in Africa, the Levant and ultimately onwards to Asia Minor and Europe, where they each eventually differentiated into their regionally distinctive branches".

The division of E-V68 into sub-clades such as E-V12, E-V13, etc. has largely been the work of an Italian team including Fulvio Cruciani, Beniamino Trombetta, Rosario Scozzari and others. They started on the basis of STR studies in 2004, and then in 2006 they announced the discoveries of single nucleotide polymorphism (SNP) mutations which could define most of the main branches with better clarity, which was then discussed further in 2007.[2][5][6] These articles were the basis of the updated phylogenies found in Karafet (2008), and ISOGG, which is in turn the basis of the phylogeny given below.

Loosdrecht et al. (2018) analysed genome-wide data from seven ancient Iberomaurusian individuals from the Grotte des Pigeons near Taforalt in eastern Morocco. The fossils were directly dated to between 15,100 and 13,900 calibrated years before present. The scientists found that all the male specimens with sufficient nuclear DNA preservation belonged to the E1b1b1a1 (M78) subclade, with one skeleton bearing the E1b1b1a1b1 parent lineage to E-V13.[7]

Age

Battaglia et al. (2007) estimated that E-M78 (called E1b1b1a1 in that paper) has been in Europe longer than 10,000 years. And more recently, Lacan et al. (2011) found that human remains excavated in a Spanish funeral cave dated to approximately 7000 years ago were in the E-V13 branch of E-M78.

In June 2015, the M78 mutation and the consequent beginning of the E-M78 and E-68 family trees was dated by Trombetta et al. to approximately 20,300-14,800 years ago.[8]

Family tree

This phylogenetic tree of haplogroup subclades is based on the YCC 2008 tree and subsequent published research as summarized by ISOGG in 2013.[9][10][11] There is a new ISOGG 2014 Y-tree, which pushes many of these subclades into different names.

V68

E-V68* (E1b1b1a*)

M78

E-M78* (E1b1b1a1*) (Gurna Oasis) in Egypt, Morocco and Mediterranean.[2]

V12

E-V12* (E1b1b1a1a*) Found in Egypt, French Basques, Sudan, and other places.

E-M224 (E1b1b1a1a1)

E-V32 (E1b1b1a1a2) Found in Somalia.

V13
V13

E-V13* (E1b1b1a1b*) The majority of E-V13, and more generally of E-M78 in Europe.

V27

E-V27 (E1b1b1a1b1)

P65

E-P65 (E1b1b1a1b2)

L17

E-L17 (E1b1b1a1b3)

L143

E-L143 (E1b1b1a1b4)

M35.2

E-M35.2 (E1b1b1a1b5) In this small branch, the M35 mutation has been reversed and lost.

L241

E-L241 (E1b1b1a1b6)

L250, L251, L252

(E1b1b1a1b7)

L540

E-L540 (E1b1b1a1b8)

V22
V22

E-V22* (E1b1b1a1c*) Found in Egypt, the Middle East and other places.

M148

(E1b1b1a1c1)

V19

E-V19 (E1b1b1a1c2)

V65

E-V65 (E1b1b1a1d) Associated with the Maghreb, but also found in Italy and Spain.

M521

E-M521 (E1b1b1a1e) Found in two individuals in Greece by Battaglia et al. 2008

Distribution

So far, three individuals who are in E-V68 but not E-M78 have been reported in Sardinia, by Trombetta et al. (2010), when announcing the discovery of V68.

E-M78 is widely distributed in North Africa, Horn of Africa, West Asia (stretching as far as Southern Asia), and Europe.[2][6]

The most basal and rare E-M78* paragroup has been found at its highest frequencies in Egyptians from the Gurna Oasis (5.88%), with lower frequencies also observed in Moroccan Arabs, Sardinians, the Balkans, and Andalusians from Huelva.[2][3][12]

The highest frequencies of all the defined E-M78 sub-clades is primarily found amongst Afroasiatic-speaking populations in the large area stretching from the haplogroup's putative place of origin in Upper Egypt to the Sudan and the Horn of Africa.[5]

Outside of this core area of distribution (North Africa and the Horn of Africa), E-V68 is also observed in other parts of the continent at lower frequencies due to more recent dispersals. It is thus found today in pockets of the African Great Lakes and Southern Africa owing to early Afro-Asiatic-speaking settlers from the Horn region,[8] and as far west as Guinea-Bissau, where its presence has been tentatively attributed to trans-Saharan movements of people from North Africa.[13]

The distribution of E-V68 in Europe is dominated by its E-V13 subclade, except in Iberia. E-V13 has a frequency peak centered in parts of the Balkans (approximately 20% in southern areas; up to almost 50% is some particular places and populations[14][15]) and Italy. It today has lower frequencies toward the western, central and northeastern areas, though E-V13 has been found in a Neolithic burial in Catalonia. This is discussed in more detail below.

Region Population n E-M78 E-M78* E-V12* E-V13 E-V22 E-V32 E-V65 Study
Europe     Kosovar Albanians 114 45.60 1.75 43.85 Peričic et al. (2005)
Europe     Macedonian Arumanians 57 29.82 29.82 Peričic et al. (2005)
Europe     Serbians 113 20.35 1.77 18.58 Peričic et al. (2005)
Europe     Croatians 108 5.60 5.60 Peričic et al. (2005)
Europe     Crete 193 6.7 6.7 King et al. (2008)
Europe     Greeks from Nea Nikomedeia 57 15.8 1.8 14.0 King et al. (2008)
Europe     Greeks from Sesklo/Dimini 57 38.6 3.5 35.1 King et al. (2008)
Europe     Greeks from Lerna/Franchthi 57 35.1 35.1 King et al. (2008)
Europe     Sicilians 236 11.43 1.27 5.93 3.81 0.42 Di Gaetano et al. (2008)
Europe     Huelva Andalusians 167 6.59 1.20 4.19 0.60 0.60 Ambrosio et al. (2010)
Europe     Sicilians 153 13.07 0.65 7.19 4.58 0.65 Cruciani et al. (2007)
Europe     Northern Portuguese 50 4 4 Cruciani et al. (2007)
Europe     Southern Portuguese 49 4.08 4.08 Cruciani et al. (2007)
Europe     Pasiegos from Cantabria 56 Cruciani et al. (2007)
Europe     Asturians 90 10 5.56 4.44 Cruciani et al. (2007)
Europe     Southern Spaniards 62 3.23 3.23 Cruciani et al. (2007)
Europe     Spanish Basques 55 Cruciani et al. (2007)
Europe     French Basques 16 6.25 6.25 Cruciani et al. (2007)
Europe     French 225 4.44 0.44 4 Cruciani et al. (2007)
Europe     English 28 Cruciani et al. (2007)
Europe     Danish 35 2.86 2.86 Cruciani et al. (2007)
Europe     Germans 77 3.9 3.9 Cruciani et al. (2007)
Europe     Polish 40 2.5 2.5 Cruciani et al. (2007)
Europe     Czechs 268 4.85 4.85 Cruciani et al. (2007)
Europe     Slovaks 24 8.33 8.33 Cruciani et al. (2007)
Europe     Slovenians 104 2.88 2.88 Cruciani et al. (2007)
Europe     Northern Italians 94 7.45 5.32 2.13 Cruciani et al. (2007)
Europe     Central Italians 356 7.87 0.28 5.34 1.97 0.28 Cruciani et al. (2007)
Europe     Southern Italians 141 10.64 0.71 8.51 1.42 Cruciani et al. (2007)
Europe     Sardinians 374 3.48 0.27 0.27 1.07 0.8 1.07 Cruciani et al. (2007)
Europe     Estonians 74 4.05 4.05 Cruciani et al. (2007)
Europe     Belarusians 40 Cruciani et al. (2007)
Europe     Northern Russians 82 3.66 3.66 Cruciani et al. (2007)
Europe     Southern Russians 92 2.17 2.17 Cruciani et al. (2007)
Europe     Ukrainians 11 9.09 9.09 Cruciani et al. (2007)
Europe     Moldovians 77 7.79 7.79 Cruciani et al. (2007)
Europe     Hungarians 106 9.43 9.43 Cruciani et al. (2007)
Europe     Rumanians 265 7.55 7.17 0.38 Cruciani et al. (2007)
Europe     Macedonians 99 18.18 17.17 1.01 Cruciani et al. (2007)
Europe     Continental Greeks 147 19.05 17.69 0.68 0.68 Cruciani et al. (2007)
Europe     Greeks from Crete 215 6.51 0.93 5.58 Cruciani et al. (2007)
Europe     Greeks from Aegean Islands 71 16.9 15.49 1.41 Cruciani et al. (2007)
Europe     Bulgarians 204 16.67 0.49 16.18 Cruciani et al. (2007)
Europe     Albanians 96 32.29 32.29 Cruciani et al. (2007)
Northwestern Africa     Moroccan Arabs 55 40 3.64 7.27 29.09 Cruciani et al. (2007)
Northwestern Africa     Asni Berbers 54 3.7 3.7 Cruciani et al. (2007)
Northwestern Africa     Bouhria Berbers 67 1.49 1.49 Cruciani et al. (2007)
Northwestern Africa     Moyen Atlas Berbers 69 10.14 10.14 Cruciani et al. (2007)
Northwestern Africa     Marrakech Berbers 29 6.9 3.45 3.45 Cruciani et al. (2007)
Northwestern Africa     Moroccan Jews 50 12 2 2 8 Cruciani et al. (2007)
Northwestern Africa     Mozabite Berbers 20 Cruciani et al. (2007)
Northeastern Africa     Libyan Jews 25 8 4 4 Cruciani et al. (2007)
Northeastern Africa     Libyan Arabs 10 20 20 Cruciani et al. (2007)
Northeastern Africa     Northern Egyptians (Delta) 72 23.61 5.56 1.39 13.89 2.78 Cruciani et al. (2007)
Northeastern Africa     Egyptian Berbers 93 6.45 2.15 4.3 Cruciani et al. (2007)
Northeastern Africa     Egyptians from Bahari 41 41.46 14.63 2.44 21.95 2.44 Cruciani et al. (2007)
Northeastern Africa     Egyptians from Gurna Oasis 34 17.65 5.88 8.82 2.94 Cruciani et al. (2007)
Northeastern Africa     Egyptians 70 79 79 Trombetta (2015)
Northeastern Africa     Southern Egyptians 79 50.63 44.3 1.27 3.8 1.27 Cruciani et al. (2007)
Eastern Africa     Dinka 26 15.38 3.85 11.54 Hassan et al. (2008)
Eastern Africa     Shilluk 15 13.33 13.33 Hassan et al. (2008)
Eastern Africa     Nuer 12 16.67 16.67 Hassan et al. (2008)
Eastern Africa     Borgu 26 15.38 3.85 11.54 Hassan et al. (2008)
Eastern Africa     Nuba 28 25 3.57 3.57 7.14 10.71 Hassan et al. (2008)
Eastern Africa     Masalit 32 71.88 3.13 15.63 53.13 Hassan et al. (2008)
Eastern Africa     Fur 32 59.38 18.75 40.63 Hassan et al. (2008)
Eastern Africa     Nubians 39 15.38 12.82 2.56 Hassan et al. (2008)
Eastern Africa     Fulani from Sudan 26 34.62 30.77 3.85 Hassan et al. (2008)
Eastern Africa     Hausa from Sudan 32 3.13 3.13 Hassan et al. (2008)
Eastern Africa     Egyptian Copts from Sudan 33 15.15 15.15 Hassan et al. (2008)
Eastern Africa     Beja 42 35.71 4.76 30.95 Hassan et al. (2008)
Eastern Africa     Gaalien 50 18.00 6.00 6.00 6.00 Hassan et al. (2008)
Eastern Africa     Meseria 28 14.29 3.57 10.71 Hassan et al. (2008)
Eastern Africa     Arakien 24 16.67 8.33 4.17 4.17 Hassan et al. (2008)
Eastern Africa     Amhara 34 8.82 8.82 Cruciani et al. (2007)
Eastern Africa     Ethiopian Jews 22 9.09 9.09 Cruciani et al. (2007)
Eastern Africa     Mixed Ethiopians 12 33.33 25 8.33 Cruciani et al. (2007)
Eastern Africa     Borana/Oromo (Kenya/Ethiopia) 32 40.63 40.63 Cruciani et al. (2007)
Eastern Africa     Wolayta 12 16.67 8.33 8.33 Cruciani et al. (2007)
Eastern Africa     Saho from Eritrea 94 88.3 88.3 Trombetta (2015)
Eastern Africa     Somali from Ethiopia 12 33.3 8.3 25 Trombetta (2015)
Eastern Africa     Somali from Somalia 5 80 80 Trombetta (2015)
Eastern Africa     Somali from Kenya 6 80 80 Trombetta (2015)
Eastern Africa     Nilotic from Kenya 18 11.11 11.11 Cruciani et al. (2007)
Eastern Africa     Bantu from Kenya 28 3.57 3.57 Cruciani et al. (2007)
Eastern Africa     Western Africa 123 0.81 0.81 Cruciani et al. (2007)
Eastern Africa     Central Africa 150 0.67 0.67 Cruciani et al. (2007)
Eastern Africa     Southern Afric 105 Cruciani et al. (2007)
Western Asia     Istanbul Turkish 35 8.57 2.86 5.71 Cruciani et al. (2007)
Western Asia     Southwestern Turkish 40 2.5 2.5 Cruciani et al. (2007)
Western Asia     Northeastern Turkish 41 Cruciani et al. (2007)
Western Asia     Southeastern Turkish 24 4.17 4.17 Cruciani et al. (2007)
Western Asia     Erzurum Turkish 25 4 4 Cruciani et al. (2007)
Western Asia     Central Anatolian 61 6.56 1.64 4.92 Cruciani et al. (2007)
Western Asia     Turkish Cypriots 46 13.04 10.87 2.17 Cruciani et al. (2007)
Western Asia     Sephardi Turkish 19 Cruciani et al. (2007)
Western Asia     Palestinians 29 10.34 3.45 6.9 Cruciani et al. (2007)
Western Asia     Druze Arabs 28 10.71 10.71 Cruciani et al. (2007)
Western Asia     Bedouin 28 3.57 3.57 Cruciani et al. (2007)
Western Asia     Syrians 100 2 2 Cruciani et al. (2007)
Western Asia     Kurds from Iraq 20 Cruciani et al. (2007)
Western Asia     Arabs from United Arab Emirates 40 2.5 2.5 Cruciani et al. (2007)
Western Asia     Omanite 106 0.94 0.94 Cruciani et al. (2007)
Western Asia     Adygei 18 Cruciani et al. (2007)
Western Asia     Azeri 97 2.06 2.06 Cruciani et al. (2007)

Subclades of M78

The distribution of E-V13 according to the dataset of Cruciani (2007) et al. listed above

Listed here are the main subclades of M78 as of June 2015. Within the E-M78 subclade, Trombetta et al. 2015 allocated most of the former E-M78* chromosomes to three new distinct branches: E-V1083*, E-V1477 and E-V259. The first is a paragroup sister to clades E-V22 and E-V13. The mutation V1477 defines a new basal branch observed only in one northern African sample. Finally, a sister clade of E-V12, defined by V264, includes E-V65 and a new central African lineage defined by V259.[8] The rare M78 subhaplogroup E1b1b1a1-PF2186 has been found at highest frequencies among the Toubou population inhabiting Chad (21%).[16]

  • E-M78 (E1b1b1a1) North Africa, Horn of Africa, West Asia, Europe (formerly E1b1b1a).
    • E-M78*
    • E-V1477 Found in Tunisian Jews.
    • E-V1083
    • PF2186 Found among Toubou in Lake Chad area.
      • E-V1083* Found only in Eritrea (1.1%) and Sardinia (0.3%).
      • E-V13
      • E-V22
    • E-V1129
      • E-V12
        • E-V12*
        • E-V32
      • E-V264
        • E-V259 Found in North Cameroon.
        • E-V65

E-V12

This sub-clade of E-M78 is the one which appears to have split from the others first (it arose c. 13.7-15.2 kya[17]). According to Cruciani et al. (2007), the E-V12 sublineage likely originated in North Africa.

Undifferentiated E-V12* lineages

Undifferentiated E-V12* lineages (not E-V32 or E-M224, so therefore named "E-V12*") peak in frequency among Southern Egyptians (up to 74.5%).[18] The subclades are also scattered widely in small amounts in both Northern Africa and Europe, but with very little sign in Western Asia, apart from Turkey.[2] These E-V12* lineages were formerly included (along with many E-V22* lineages[Note 1]) in Cruciani et al.'s original (2004) "delta cluster", which he had defined using Y-STR profiles. With the discovery of the defining SNP, Cruciani et al. (2007) reported that V12* was found in its highest concentrations in Egypt, especially Southern Egypt. Hassan et al. (2008) report a significant presence of E-V12* in neighboring Sudan, including 5/33 Copts and 5/39 Nubians. E-V12* made up approximately 20% of the Sudanese E-M78. They propose that the E-V12 and E-V22 sub-clades of E-M78 might have been brought to Sudan from their place of origin in North Africa after the progressive desertification of the Sahara around 6,000–8,000 years ago. Sudden climate change might have forced several Neolithic cultures/people to migrate northward to the Mediterranean and southward to the Sahel and the Nile Valley.[19] The E-V12* paragroup is also observed in Europe (e.g. amongst French Basques) and Eastern Anatolia (e.g. Erzurum Turks).[2]

The non-basal subhaplogroup E1b1b-V12/E3b1a1 has been found at highest frequencies among various Afroasiatic-speaking populations in eastern Africa, including Garreh (74.1%), Gabra (58.6%), Wata (55.6%), Borana (50.0%), Sanye (41.7%), Beja (33.3%) and Rendille (29.0%).[20]

Sub-clades of E-V12

E-M224

E-M224 has been found in Israel among Yemeni population (5%) and appears to be a minor subclade.

Its discovery was announced in Underhill et al. (2001) and Shen et al. (2004) found 1 out of their 20 Yemeni Israelis they tested. Cruciani et al. (2006) called M224 "rare and rather uninformative" and they found no exemplars.

E-V32
The distribution of V-32 in Africa

Cruciani et al. (2007) suggest that this sub-clade of E-V12 originated in North Africa, and then subsequently expanded further south into the Horn of Africa, where it is now prevalent.[Note 2] Before the discovery of V32, Cruciani et al. (2004) referred to the same lineages as the "gamma cluster", which was estimated to have arisen about 8,500 years ago. They stated that "the highest frequencies in the three Cushitic-speaking groups: the Borana from Kenya (71.4%), the Oromo from Ethiopia (32.0%), and the Somali (52.2%). Outside of eastern Africa, it was found only in two subjects from Egypt (3.6%) and in one Arab from Morocco". Sanchez et al. (2005) found it extremely prominent in Somali men and stated that "the male Somali population is a branch of the Horn African population – closely related to the Oromos in Ethiopia and North Kenya (Boranas)" and that their gamma cluster lineages "probably were introduced into the Somali population 4000–5000 years ago". More recently, Tillmar et al. (2009) typed 147 males from Somalia for 12 Y-STR loci, and observed that 77% (113/147) had typical E-V32 haplotypes. This is currently the highest frequency of E-V32 found in any single sample population. Similarly, Hassan et al. (2008) in their study observed this to be the most common of the sub-clades of E-M78 found in Sudan, especially among the Beja, Masalit and Fur. The Beja, like Somalis and Oromos, speak an Afro-Asiatic language and live along the "corridor" from the Horn of Africa to Egypt. Hassan et al. (2008) interpret this as reinforcing the "strong correlation between linguistic and genetic diversity" and signs of relatedness between the Beja and the peoples of the Horn of Africa such as the Amhara and Oromo. On the other hand, the Masalit and Fur live in Darfur and speak a Nilo-Saharan language. The authors observed in their study that "the Masalit possesses by far the highest frequency of the E-M78 and of the E-V32 haplogroup", which they believe suggests "either a recent bottleneck in the population or a proximity to the origin of the haplogroup." However, More recently, Tillmar et al. (2009) typed 147 males from Somalia for 12 Y-STR loci, and observed that 77% (113/147) had typical E-V32 haplotypes. This is the highest frequency of E-V32 found in any single sample population.

The STR data from Cruciani et al. (2007) concerning E-V12 can be summarized as follows.

Haplotype description YCAIIa YCAIIb DYS413a DYS413b DYS19 DYS391 DYS393 DYS439 DYS460 DYS461 A10
E-V12* modal 19 22 22 22 13 10 13 11 11 9 13
min 18 21 20 21 11 10 12 11 8 8 11
max 19 22 22 23 15 12 14 13 12 10 14
number 40 40 40 40 40 40 40 40 40 40 40
E-V32 modal 19 21 22 23 11 10 13 12 10 10 13
min 19 19 20 21 11 9 12 11 9 10 11
max 20 22 22 24 11 11 13 13 12 11 14
number 35 35 35 35 35 35 35 35 35 35 35
All E-V12 modal 19 22 22 23 11 10 13 11 11 10 13
min 18 19 20 21 11 9 12 11 8 8 11
max 20 22 22 24 15 12 14 13 12 11 14
number 75 75 75 75 75 75 75 75 75 75 75

E-V13

The E-V13 clade is equivalent to the "alpha cluster" of E-M78 reported in Cruciani et al. (2004), and was first defined by the SNP V13 in Cruciani et al. (2006). Another SNP is known for this clade, V36, reported in Cruciani et al. (2007). All known positive tests for V13 are also positive for V36. So E-V13 is currently considered "phylogenetically equivalent" to E-V36.

Haplogroup E-V13 is the only lineage that reaches the highest frequencies out of Africa. In fact, it represents about 85% of the European E-M78 chromosomes with a clinal pattern of frequency distribution from the southern Balkan peninsula (19.6%) to western Europe (2.5%). The same haplogroup is also present at lower frequencies in Anatolia (3.8%), the Near East (2.0%), and the Caucasus (1.8%). In Africa, haplogroup E-V13 is rare, being observed only in northern Africa at a low frequency (0.9%).

— Cruciani et al. (2007)

According to some authors E-V13 appears to have originated in Greece or the southern Balkans and its presence in the rest of the Mediterranean is likely a consequence of Greek colonization.[21][22][23] Within Europe, E-V13 is especially common in the Balkans and some parts of Italy. In different studies, particularly high frequencies have been observed in Kosovo Albanians (45.6%[24]), Macedonian Albanians (34.4%[25]), and in some parts of Greece (ca. 35%[26]).[27] More generally, high frequencies have also been found in other areas of Greece, and amongst Bulgarians, Romanians, Macedonians and Serbs.[5][15][28][29]

Within Italy, frequencies tend to be higher in Southern Italy,[2] with particularly high results sometimes seen in particular areas; for example, in Santa Ninfa and Piazza Armerina in Sicily.[30] High frequencies appear to exist also in some northern areas[Note 3] for example around Venice,[Note 4] Genoa[31] and Rimini,[32] as well as on the island of Corsica [33] and the region of Provence in south France,[23] and is also found in scattered and small amounts in Libyan Jews and Egypt, but this is most likely a result of migration from Europe or the Near East.[2]

Among ancient specimens, Loosdrecht et al. (2018) found one E-V13-carrying fossil at the Grotte des Pigeons near Taforalt in eastern Morocco. The skeleton has been directly dated to between 15,100 and 13,900 calibrated years before present.[7]

E-V13 and ancient migrations

The apparent movement of E-M78 lineages from the Near East to Europe, and their subsequent rapid expansion, make its E-V13 sub-clade a particularly interesting subject for speculation about ancient human migrations.

It was concluded that northeastern Africa, rather than eastern Africa, was where the E-M78 chromosomes began dispersing to other regions.[34] The most plausible scenario is that E-V13 originated in Western Asia.[35] A hypothesis is that E-M78 carriers devoid of V13 mutation left Africa and that the coalescene occurred later in the Near East/Anatolia.[35] Data suggests that Western Asian carriers of V13 expanded in Europe at earliest 5300 years ago.[35] The TMRCA of European V13 is 4700–4000 years ago.[35] Phylogenetic analysis suggest that the European v13 spread through Europe from the Balkans in a "rapid demographic expansion".[35]

Before then, the SNP mutation, V13 apparently first arose in West Asia around 10 thousand years ago, and although not widespread there, it is for example found in high levels (>10% of the male population) in Turkish Cypriot and Druze Arab lineages.[2] The Druze are considered a genetically isolated community, and are therefore of particular interest.[36] The STR DNA signature of some of the E-V13 men amongst them was actually originally classified in the delta cluster in Cruciani et al. (2004). This means that Druze E-V13 clustered together with most E-V12 and E-V22, and not with European E-V13, which was mostly in the alpha cluster.

haplotype description YCAIIa YCAIIb DYS413a DYS413b DYS19 DYS391 DYS393 DYS439 DYS460 DYS461 A10
All E-V13 modal 19 21 23 24 13 10 13 12 9 10 13
Druze V13 1 19 21 23 23 13 10 13 13 11 9 12
Druze V13 2 19 21 23 23 13 10 13 13 11 9 13
All E-V22 modal 19 22 22 23 14 10 13 12 11 10 12
All E-V12* modal 19 22 22 22 13 10 13 11 11 9 13
Early migration from the Middle East to Europe

The distribution and diversity of V13 are often thought to represent the introduction of early farming technologies, during the Neolithic expansion, into Europe by way of the Balkans.[14] The haplogroup J2b (J-M12) has also frequently been discussed in connection with V13, as a haplogroup with a seemingly very similar distribution and pre-history.[3][5][14] (There is no consensus regarding the circumstances or timing of its evolution.)

Cruciani et al. (2007) says there were at least four major demographic events which have been envisioned for this geographic area:

The last two seem within the timespan possible for V13 given its STR age of arise putatively in the Middle East. In favor of the agricultural connection, human remains excavated in a Spanish funeral cave dating from approximately 7000 years ago were shown to be in this haplogroup.[37]

However, earlier entry into Europe is also possible. Battaglia et al. (2008), for example, propose that the E-M78* lineage ancestral to all modern E-V13 men moved rapidly out of a Southern Egyptian homeland, in the wetter conditions of the early Holocene; arrived in the Balkans with only Mesolithic technologies and then only subsequently integrated with Neolithic cultures which arrived later in the Balkans.

E-V13 is in any case often described in population genetics as one of the components of the European genetic composition which shows a relatively recent link of populations from the Middle East, entering Europe and presumably associated with bringing new technologies.[38][39][40] As such, it is also sometimes remarked that it is a relatively recent genetic movement out of Africa into Eurasia, and has been described as "a signal for a separate late-Pleistocene migration from Africa to Europe over the Sinai ... which is not manifested in mtDNA haplogroup distributions".[41]

After its initial entry in Europe, there was then a dispersal from the Balkans into the rest of Europe. Also for this movement, a wide range of possibilities exists. Battaglia et al. (2008) suggest that the E-V13 sub-clade of E-M78 originated in situ in Europe, and propose that the first major dispersal of E-V13 from the Balkans may have been in the direction of the Adriatic Sea with the Neolithic Impressed Ware culture often referred to as Impressa or Cardial. The above-mentioned find of archaic E-V13 in Spain supports this suggestion.

In contrast, Cruciani et al. (2007) suggest that the movement out of the Balkans may have been more recent than 5300 years ago. The authors suggest that for the most part, modern E-V13 descends from a population which remained in the Balkans until the Balkan Bronze age. They consider that "the dispersion of the E-V13 and J-M12 haplogroups seems to have mainly followed the river waterways connecting the southern Balkans to north-central Europe". Peričic et al. (2005) propose the Vardar-Morava-Danube rivers as a possible route of Neolithic dispersal into central Europe. Bird (2007) proposes a still more recent dispersal out of the Balkans, around the time of the Roman empire.

According to Lacan et al. (2011), Neolithic skeletons (~7,000 years old) that were excavated from the Avellaner cave in Catalonia, northeastern Spain included a male specimen, which carried haplogroup E1b1b. This fossil belonged to the E1b1b1a1b (V13) subclade, and possessed identical haplotypes as found in modern European individuals (five Albanians, two Provence French, two Corsicans, two Bosnians, one Italian, one Sicilian, and one Greek). The presence of this haplogroup in Neolithic Spain suggests that it is associated with the Neolithic agricultural package. The ancient farmer also bore the U5 mtDNA clade, an early European maternal haplogroup. His autosomal STR markers were likewise most typical of Europe. Additionally, the specimen was homozygous C/C for the LP-13910-C/T lactase persistence SNP, indicating that he was lactose intolerant.

Greek soldiers in Pakistan

Both E-M78 and J-M12 have also been used in studies seeking to find evidence of a remaining Greek presence in Afghanistan and Pakistan, going back to the time of Alexander the Great.

An extensive analysis of Y diversity within Greeks and three Pakistani populations – the Burusho, Kalash and Pathan – who claim descent from Greek soldiers allowed us to compare Y lineages within these populations and re-evaluate their suggested Greek origins. This study as a whole seems to exclude a large Greek contribution to any Pakistani population, confirming previous observations. However, it provides strong evidence in support of the Greek origins for a small proportion of Pathans, as demonstrated by the clade E network and the low pairwise genetic distances between these two populations.

— Firasat et al. (2006)

This study however tested only for M78, and not V13, the typical type of M78 from the Balkans. More recent and detailed analyses of E-V13 in this region have however concluded that this hypothesis is incorrect, and that the variants found there are not the types typical of the Balkans.[42] Instead "Afghanistan's lineages are correlated with Middle Easterners and Iranians but not with populations from the Balkans"[43]

Ancient Britain

Significant frequencies of E-V13 have also been observed in towns in Wales, around Chester (ancient Deva Victrix) in England, and Scotland. The old trading town of Abergele on the northern coast of Wales in particular showed 7 out of 18 local people tested were in this lineage (approximately 40%), as reported in Weale et al. (2002).

Some scholars (e.g. Steven Bird (2007) have attributed the presence of E-V13 in Great Britain, especially in areas of high frequency, to Roman settlement during the 1st through 4th centuries CE. The Roman Army including men of Balkan ancestry, including Thracians, Illyrians and Dacians. In particular, Steven Bird proposes a connection to a modern region encompassing Kosovo, southern Serbia, northern Macedonia, and extreme northwestern Bulgaria – a region corresponding to the Roman province of Moesia Superior, which was identified by Peričic et al. (2005) as harboring the highest frequency worldwide of this sub-clade.[Note 5]

It is also notable that E-V13 appears to be absent in modern central England, especially the West Midlands and South Midlands.[Note 6] Bird (2007) notes that the collective genetic profile of the English Midlands is similar to that of the Dutch province of Friesland, which was not colonised by Rome, but was, like England, subject to Anglo-Saxon settlement. The so-called "E3b hole" in Central England, according to Steven Bird, may reflect a population replacement – of Romano-British people by Anglo-Saxons.[Note 7] Thomas et al. (2006) raises the possibility of "apartheid"-type, elite dominance social structures in Anglo-Saxon England. Bird (2007) concurs: "The 'E3b hole' suggests that either (a) a massive displacement of the ... Romano-British population by invasion or, (b) the substantial genetic replacement of Romano-British Y-DNA through an elite dominance ("apartheid") model... Regardless of the mechanism, the Central England region ... with its lack of E3b haplotypes, is the area having the most "striking similarity in the distribution of Y-chromosomes" with Friesland."

Sub-clades of E-V13

Although most E-V13 individuals do not show any known downstream SNP mutations, and are therefore categorized as E-V13* there are several recognized sub-clades, all of which may be very small. These are one of two cases where Karafet et al. (2008) remarked that at the time of that article, it was not certain that the two clades were truly separate ("the positions of these mutations have not been resolved because of a lack of a DNA sample containing the derived state at V27").

  • E-V27. Defined by V27. Cruciani et al. (2007) found one case in Sicily.
  • E-P65. Defined by P65.
  • E-L17. Defined by L17.
  • E-L143. Defined by L143.
  • E-M35.2. Defined by M35.2.
  • E-L241. Defined by L241.
  • E-L250. Defined by L250, L251, and L252.

E-V22

This clade comprises most of those classified in the "delta cluster" of Cruciani et al. (2004). Cruciani et al. (2006) later noted that "E-V22 and E-V12* chromosomes are intermingled and not clearly differentiated by their microsatellite haplotypes".

This sub-clade of E-M78 is "relatively common"[2] in the Horn of Africa and Egypt, with higher microsatellite variance (0.35 vs. 0.46, respectively) in Egypt. In the article announcing this first information, Cruciani et al. (2007) described it as uncommon in Western Asia and they proposed Northeast Africa (Libya/Egypt) as this sub-clade's likely place of origin.

The highest frequency of E-V22 has thus far been observed in the Cushitic-speaking Saho population of central Eritrea at a rate of 88%.[8] The Saho are known to be organized in strict patrilineal and patrilocal clans. It has been hypothesized that this kind of social structure can explain patterns of variability characterized by low Y-chromosome diversity within groups and large difference between groups.[44]

Hassan et al. (2008) also reported a significant presence in neighboring Sudan, making up about 30% of the diverse range of the country's E-M78 lineages in their study, including 8 out of 26 Fulani (about 31%), a widely-dispersed pastoral people.[Note 8] E-V22 was also present in much smaller frequencies amongst the Shilluk (2 of 15 samples, 13%) and Dinka (3 of 26, 11.5%) Nilotes of Southern Sudan. Hassan et al. suggest that E-V22, like E-V12, might have entered Sudan from North Africa "after the progressive desertification of the Sahara around 6,000–8,000 years ago". They add that the gene flow to Sudan "is not only recent (Holocene onward) but also largely of focal nature", and that "most speakers of Nilo-Saharan languages, the major linguistic family spoken in the country, show very little evidence of gene flow and demonstrate low migration rate, with exception of the Nubians, who appear to have sustained considerable gene flow from Asia and Europe together with the Beja."

Other frequencies reported by Cruciani et al. (2007) include Asturians (4.44% out of 90 people), Sicilians (4.58% out of 153 people), Moroccan Arabs (7.27%, 55 people), Moroccan Jews (8%, 50 people), Istanbul Turkish (5.71% out of 35 people), and Palestinians (6.9% out of 29 people). Cadenas et al. (2007) found a 6.7% presence in the UAE.

Sub-clades of E-V22

There are two recognized sub-clades, which are apparently separate, although Karafet (2008) remarked that at the time of that article, "the positions of these mutations have not been resolved because of a lack of a DNA sample containing the derived state at [...] V19".

E-V65

This sub-clade, equivalent to the previously classified "beta cluster", is found in high levels in the Maghreb regions of far northern Africa. Cruciani et al. (2007) report levels of about 20% amongst Libyan Arab lineages, and about 30% amongst Moroccan Arabs. It appears to be less common amongst Berbers, but still present in levels of >10%. The authors suggest a North African origin for this lineage. In Europe, only a few individuals were found in Italy and Greece. The results from the article can be summarized as follows...

E-V65 YCAIIa YCAIIb DYS413a DYS413b DYS19 DYS391 DYS393 DYS439 DYS460 DYS461 A10
modal 19 21 21 23 13 10 13 10 10 11 13
min 19 20 20 22 11 10 13 10 9 9 12
max 21 21 22 23 14 11 14 11 11 12 13
number 38 38 38 38 38 38 38 38 38 38 38

Capelli et al. (2009) studied the beta cluster in Europe. They found small amounts in Southern Italy, but also traces in Cantabria, Portugal and Galicia, with Cantabria having the highest level in Europe in their study, at 3.1% (5 out of 161 people).

E-M521

This sub-clade's discovery was announced in Battaglia et al. (2008) They found 2 out of 92 Greeks to have this mutation.

Phylogenetics

Phylogenetic history

Main article: Conversion table for Y chromosome haplogroups

Prior to 2002, there were in academic literature at least seven naming systems for the Y-Chromosome Phylogenetic tree. This led to considerable confusion. In 2002, the major research groups came together and formed the Y-Chromosome Consortium (YCC). They published a joint paper that created a single new tree that all agreed to use. Later, a group of citizen scientists with an interest in population genetics and genetic genealogy formed a working group to create an amateur tree aiming at being above all timely. The table below brings together all of these works at the point of the landmark 2002 YCC Tree. This allows a researcher reviewing older published literature to quickly move between nomenclatures.

YCC 2002/2008 (Shorthand) (α) (β) (γ) (δ) (ε) (ζ) (η) YCC 2002 (Longhand) YCC 2005 (Longhand) YCC 2008 (Longhand) YCC 2010r (Longhand) ISOGG 2006 ISOGG 2007 ISOGG 2008 ISOGG 2009 ISOGG 2010 ISOGG 2011 ISOGG 2012
E-P29 21 III 3A 13 Eu3 H2 B E* E E E E E E E E E E
E-M33 21 III 3A 13 Eu3 H2 B E1* E1 E1a E1a E1 E1 E1a E1a E1a E1a E1a
E-M44 21 III 3A 13 Eu3 H2 B E1a E1a E1a1 E1a1 E1a E1a E1a1 E1a1 E1a1 E1a1 E1a1
E-M75 21 III 3A 13 Eu3 H2 B E2a E2 E2 E2 E2 E2 E2 E2 E2 E2 E2
E-M54 21 III 3A 13 Eu3 H2 B E2b E2b E2b E2b1 - - - - - - -
E-P2 25 III 4 14 Eu3 H2 B E3* E3 E1b E1b1 E3 E3 E1b1 E1b1 E1b1 E1b1 E1b1
E-M2 8 III 5 15 Eu2 H2 B E3a* E3a E1b1 E1b1a E3a E3a E1b1a E1b1a E1b1a E1b1a1 E1b1a1
E-M58 8 III 5 15 Eu2 H2 B E3a1 E3a1 E1b1a1 E1b1a1 E3a1 E3a1 E1b1a1 E1b1a1 E1b1a1 E1b1a1a1a E1b1a1a1a
E-M116.2 8 III 5 15 Eu2 H2 B E3a2 E3a2 E1b1a2 E1b1a2 E3a2 E3a2 E1b1a2 E1b1a2 E1ba12 removed removed
E-M149 8 III 5 15 Eu2 H2 B E3a3 E3a3 E1b1a3 E1b1a3 E3a3 E3a3 E1b1a3 E1b1a3 E1b1a3 E1b1a1a1c E1b1a1a1c
E-M154 8 III 5 15 Eu2 H2 B E3a4 E3a4 E1b1a4 E1b1a4 E3a4 E3a4 E1b1a4 E1b1a4 E1b1a4 E1b1a1a1g1c E1b1a1a1g1c
E-M155 8 III 5 15 Eu2 H2 B E3a5 E3a5 E1b1a5 E1b1a5 E3a5 E3a5 E1b1a5 E1b1a5 E1b1a5 E1b1a1a1d E1b1a1a1d
E-M10 8 III 5 15 Eu2 H2 B E3a6 E3a6 E1b1a6 E1b1a6 E3a6 E3a6 E1b1a6 E1b1a6 E1b1a6 E1b1a1a1e E1b1a1a1e
E-M35 25 III 4 14 Eu4 H2 B E3b* E3b E1b1b1 E1b1b1 E3b1 E3b1 E1b1b1 E1b1b1 E1b1b1 removed removed
E-M78 25 III 4 14 Eu4 H2 B E3b1* E3b1 E1b1b1a E1b1b1a1 E3b1a E3b1a E1b1b1a E1b1b1a E1b1b1a E1b1b1a1 E1b1b1a1
E-M148 25 III 4 14 Eu4 H2 B E3b1a E3b1a E1b1b1a3a E1b1b1a1c1 E3b1a3a E3b1a3a E1b1b1a3a E1b1b1a3a E1b1b1a3a E1b1b1a1c1 E1b1b1a1c1
E-M81 25 III 4 14 Eu4 H2 B E3b2* E3b2 E1b1b1b E1b1b1b1 E3b1b E3b1b E1b1b1b E1b1b1b E1b1b1b E1b1b1b1 E1b1b1b1a
E-M107 25 III 4 14 Eu4 H2 B E3b2a E3b2a E1b1b1b1 E1b1b1b1a E3b1b1 E3b1b1 E1b1b1b1 E1b1b1b1 E1b1b1b1 E1b1b1b1a E1b1b1b1a1
E-M165 25 III 4 14 Eu4 H2 B E3b2b E3b2b E1b1b1b2 E1b1b1b1b1 E3b1b2 E3b1b2 E1b1b1b2a E1b1b1b2a E1b1b1b2a E1b1b1b2a E1b1b1b1a2a
E-M123 25 III 4 14 Eu4 H2 B E3b3* E3b3 E1b1b1c E1b1b1c E3b1c E3b1c E1b1b1c E1b1b1c E1b1b1c E1b1b1c E1b1b1b2a
E-M34 25 III 4 14 Eu4 H2 B E3b3a* E3b3a E1b1b1c1 E1b1b1c1 E3b1c1 E3b1c1 E1b1b1c1 E1b1b1c1 E1b1b1c1 E1b1b1c1 E1b1b1b2a1
E-M136 25 III 4 14 Eu4 H2 B E3ba1 E3b3a1 E1b1b1c1a E1b1b1c1a1 E3b1c1a E3b1c1a E1b1b1c1a1 E1b1b1c1a1 E1b1b1c1a1 E1b1b1c1a1 E1b1b1b2a1a1

Research publications

The following research teams per their publications were represented in the creation of the YCC tree.

See also

Wikiquote has quotations related to Haplogroup E-V68.

Genetics

Y-DNA E subclades

Y-DNA backbone tree

Notes

  1. ^ Cruciani et al. (2004): "E-V22 and E-V12* chromosomes are intermingled and not clearly differentiated by their microsatellite haplotypes". In Cruciani et al. (2007) the same authors show that a branch of E-V13 found amongst the Druze Arabs is also in the delta cluster. (Contrast the data tables of Cruciani et al. (2007) and Cruciani et al. (2004).)
  2. ^ Cruciani et al. (2007): Fig. 2/C
  3. ^ Genetic surveys do not all test the same markers.
  4. ^ Scozzari et al. 2001. See clade 25.1. The same data set was later used in Cruciani et al. (2004) and Cruciani et al. (2007).
  5. ^ Doubts about this line of reasoning have been expressed because: (a.) new data appearing in King et al. (2008) indicates that there were also high concentrations of E-V13 in Greece and (b.) the data in Peričic et al. (2005) show that the area with the highest frequency does not have the highest diversity, implying that V13 arrived there more recently than in Greece.
  6. ^ Bird uses three sources: Weale et al. (2002), Capelli et al. (2003) and Sykes (2006). Neither Capelli nor Weale have data from the area in the English Midlands where Bird suggests that there is a lack of E1b1b [editor E-M243]. In 2006 Bird mentioned that there were 193 Central English haplotypes in Sykes.
  7. ^ However, in the E3b distribution maps published in Bird's own paper – the Norfolk area is shown as having a high percentage of E3b. Norfolk is part of the epicentre of the supposed Anglian invasion.
  8. ^ Rosa et al. (2007) in a study of Guinea Bissau, showed that the Fulani there are about 10% E-M78. Note that this study did not test specifically for V12 or V22, so the E-M78 may have a different exact breakdown of diversity as well as a lower frequency.
  1. ^ https://www.yfull.com/tree/E-V68
  2. ^ a b c d e f g h i j k Cruciani et al. (2007)
  3. ^ a b c Battaglia et al. (2008)
  4. ^ Cruciani et al. (2007) Table 1
  5. ^ a b c d Cruciani et al. (2004)
  6. ^ a b Cruciani et al. (2006)
  7. ^ a b Loosdrecht et al.2018, Pleistocene North African genomes link Near Eastern and sub-Saharan African human populations, Science 15 Mar 2018:eaar8380 DOI:10.1126/science.aar8380
  8. ^ a b c d Trombetta (2015)
  9. ^ ISOGG (2013)
  10. ^ Karafet et al. (2008)
  11. ^ Y Chromosome Consortium "YCC" (2002)
  12. ^ Ambrosio et al. (2010)
  13. ^ Rosa et al. (2007)
  14. ^ a b c Semino et al. (2004)
  15. ^ a b Peričic (2005)
  16. ^ Haber, Marc; et al. (2016). "Chad Genetic Diversity Reveals an African History Marked by Multiple Holocene Eurasian Migrations". American Journal of Human Genetics. 99 (6): 1316–1324. doi:10.1016/j.ajhg.2016.10.012. Retrieved 3 July 2017. {{cite journal}}: Explicit use of et al. in: |last1= (help) - Y-chromosomal haplogroup frequencies on Table S.4
  17. ^ See Figure 1.
  18. ^ Beniamino Trombetta (2015). "Phylogeographic refinement and large scale genotyping of human Y chromosome haplogroup E provide new insights into the dispersal of early pastoralists in the African continent" (PDF). Genome Biology and Evolution. 7 (7): 1940–1950. doi:10.1093/gbe/evv118. Retrieved 12 July 2017.; Supplementary Table 7 Archived 2016-12-26 at the Wayback Machine
  19. ^ Hassan et al. (2008)
  20. ^ Hirbo, Jibril Boru. "Complex Genetic History of East African Human Populations" (PDF). University of Maryland, College Park. Retrieved 13 July 2017.
  21. ^ Sarno, Stefania; et al. (2014). "An Ancient Mediterranean Melting Pot: Investigating the Uniparental Genetic Structure and Population History of Sicily and Southern Italy". PLOS One. doi:10.1371/journal.pone.0096074. {{cite journal}}: Explicit use of et al. in: |author2= (help)CS1 maint: unflagged free DOI (link)
  22. ^ Primorac, Dragan; et al. (2011). "Croatian genetic heritage: Y-chromosome story". Croat Med J. 52: 225–234. doi:10.3325/cmj.2011.52.225. {{cite journal}}: Explicit use of et al. in: |author2= (help)
  23. ^ a b King, Roy J.; et al. (2011). "The coming of the Greeks to Provence and Corsica: Y-chromosome models of archaic Greek colonization of the western Mediterranean". BMC Evolutionary Biology. doi:10.1186/1471-2148-11-69. {{cite journal}}: Explicit use of et al. in: |author2= (help)CS1 maint: unflagged free DOI (link)
  24. ^ Peričic et al. 2005.
  25. ^ Battaglia et al. 2008.
  26. ^ King et al. 2008.
  27. ^ Semino et al. (2004) suggest that there might be levels of E-M78 in the Peloponnese above 40%. They found 17 out of 36 there (47%), but justified drawing conclusions from this small sample by referring also to Di Giacomo et al. (2003).
  28. ^ Rosser et al. 2000
  29. ^ King et al. (2008)
  30. ^ Di Gaetano et al. (2008)
  31. ^ Di Giacomo et al. (2003)
  32. ^ Pelotti et al. 2007
  33. ^ Francalacci et al. 2003
  34. ^ Cruciani et al. 2007, "Locating the Origin of Haplogroup E-M78".
  35. ^ a b c d e Cruciani et al. 2007, "The Haplogroup E-V13: Migrations and Demographic Expansions in Western Eurasia".
  36. ^ Shlush et al. (2008)
  37. ^ Lacan et al. (2011)
  38. ^ Semino et al. (2000)
  39. ^ King and Underhill (2002)
  40. ^ Underhill (2002)
  41. ^ Underhill and Kivisild (2007)
  42. ^ Lacau et al. (2012)
  43. ^ Haber et al. (2012)
  44. ^ Iacovacci, Giuseppe; et al. (2017). "Forensic data and microvariant sequence characterization of 27 Y-STR loci analyzed in four Eastern African countries". Forensic Science International: Genetics. 27: 123–131. doi:10.1016/j.fsigen.2016.12.015. Retrieved 23 September 2018. {{cite journal}}: Explicit use of et al. in: |last1= (help)

References

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