Euglenaceae: Difference between revisions
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== Phylogeny == |
== Phylogeny == |
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In its current [[circumscription (taxonomy)|circumscription]], Euglenaceae is [[monophyletic]].<ref name=Kim>{{cite journal | doi=10.1111/j.1529-8817.2010.00910.x | title=Multigene Analyses of Photosynthetic Euglenoids and New Family, Phacaceae (Euglenales)1 | year=2010 | last1=Kim | first1=Jong Im | last2=Shin | first2=Woongghi | last3=Triemer | first3=Richard E. | journal=Journal of Phycology | volume=46 | issue=6 | pages=1278–1287 | s2cid=86347770 }}</ref> Its sister family is [[Phacaceae]], which contains several genera (''[[Lepocinclis]]'', ''[[Phacus]]'', and ''[[Discoplastis]]'') formerly included within Euglenaceae.<ref name=Kim/> |
In its current [[circumscription (taxonomy)|circumscription]], Euglenaceae is [[monophyletic]].<ref name=Kim>{{cite journal | doi=10.1111/j.1529-8817.2010.00910.x | title=Multigene Analyses of Photosynthetic Euglenoids and New Family, Phacaceae (Euglenales)1 | year=2010 | last1=Kim | first1=Jong Im | last2=Shin | first2=Woongghi | last3=Triemer | first3=Richard E. | journal=Journal of Phycology | volume=46 | issue=6 | pages=1278–1287 | s2cid=86347770 }}</ref> Its sister family is [[Phacaceae]], which contains several genera (''[[Lepocinclis]]'', ''[[Phacus]]'', and ''[[Discoplastis]]'') formerly included within Euglenaceae.<ref name=Kim/> Two phylogenies are shown below. |
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===Kim et al. (2010)=== |
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In this phylogeny, most ''Euglena'' species are sister to a clade consisting of ''Euglenaria'' and ''Euglena archaeoplastidiata''.<ref name=Kim/> |
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{{Clade|label1=[[Euglenales]]|1= |
{{Clade|label1=[[Euglenales]]|1= |
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{{Clade |
{{Clade |
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|1=''[[Colacium]]'' |
|1=''[[Colacium]]'' |
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|2=''[[Euglena velata]]'' |
|2=''[[Euglena velata]]'' |
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}} |
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}} |
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}} |
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|2=''[[Euglenaformis]]'' |
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}} |
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|2=[[Phacaceae]] (outgroup) |
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}} |
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}} |
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===Bicudo & Menezes (2016)=== |
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This phylogeny places ''Euglena'' as sister to all other genera in Euglenaceae except for the genus ''Euglenaformis''.<ref>{{cite journal | doi=10.3389/fevo.2016.00017 | doi-access=free | title=Phylogeny and Classification of Euglenophyceae: A Brief Review | year=2016 | last1=Bicudo | first1=Carlos E. de M. | last2=Menezes | first2=Mariângela | journal=Frontiers in Ecology and Evolution | volume=4 }}</ref> |
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{{Clade|label1=[[Euglenales]] |
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|1={{clade|label1=Euglenaceae |
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|1={{clade |
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|1={{clade |
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|1=''[[Euglena]] pro parte'' |
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|2={{clade |
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|1={{clade |
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|1={{clade |
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|1={{clade |
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|1=''[[Cryptoglena]]'' |
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|2=''[[Monomorphina]]'' |
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}} |
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|2=''[[Euglenaria]]'' |
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}} |
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|2=''[[Euglena archaeoplastidiata]]'' |
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}} |
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|2={{clade |
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|1={{clade |
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|1=''[[Strombomonas]]'' |
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|2=''[[Trachelomonas]]'' |
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}} |
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|2=''[[Colacium]]'' |
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}} |
}} |
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}} |
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Revision as of 21:18, 3 May 2023
| Euglenaceae | |
|---|---|
_(cropped).jpg)
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| Euglena mutabilis | |
Scientific classification 
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| Domain: | Eukaryota |
| Phylum: | Euglenozoa |
| Class: | Euglenida |
| Clade: | Euglenophyceae |
| Order: | Euglenales |
| Family: | Euglenaceae Dujardin, 1841 |
| Genera | |
Euglenaceae (also known as Euglenidae) is a family of flagellates in the phylum Euglenozoa. The family includes the most well-known euglenoid genus, Euglena.[1]
Morphology
Euglenaceae show the most morphological diversity within the class Euglenophyceae.[2] They are mostly single-celled organisms, except for the genus Colacium. They are free-living or sometimes inhabiting the digestive tracts of animals.[1] Two genera, Strombomonas and Trachelomonas produce outer shells called loricae.[3]
As with other euglenids, cells in the Euglenaceae are surrounded by a series of proteinaceous strips called the pellicle; the pellicle can stretch in most genera, allowing the cell to contract, creating a type of movement called metaboly. The genus Monomorphina is rigid or slightly metabolic.[1] Chloroplasts are present in most species, except for a few species that have lost them.[1] Chloroplasts are diverse in this family, with the size, number, and presence of pyrenoids being important identifying characteristics.[1]
Phylogeny
In its current circumscription, Euglenaceae is monophyletic.[3] Its sister family is Phacaceae, which contains several genera (Lepocinclis, Phacus, and Discoplastis) formerly included within Euglenaceae.[3] Two phylogenies are shown below.
Kim et al. (2010)
In this phylogeny, most Euglena species are sister to a clade consisting of Euglenaria and Euglena archaeoplastidiata.[3]
| Euglenales |
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Bicudo & Menezes (2016)
This phylogeny places Euglena as sister to all other genera in Euglenaceae except for the genus Euglenaformis.[4]
| Euglenales |
| ||||||
References
- ^ a b c d e f Kostygov AY, Karnkowska A, Votýpka J, Tashyreva D, Maciszewski K, Yurchenko V, Lukeš J (March 2021). "Euglenozoa: taxonomy, diversity and ecology, symbioses and viruses". Open Biology. 11 (3): 200407. doi:10.1098/rsob.200407. PMC 8061765. PMID 33715388.
- ^ Bennett, Matthew S.; Triemer, Richard E. (2015). "Chloroplast Genome Evolution in the Euglenaceae". Journal of Eukaryotic Microbiology. 62 (6): 773–785. doi:10.1111/jeu.12235. PMID 25976746. S2CID 6208110.
- ^ a b c d Kim, Jong Im; Shin, Woongghi; Triemer, Richard E. (2010). "Multigene Analyses of Photosynthetic Euglenoids and New Family, Phacaceae (Euglenales)1". Journal of Phycology. 46 (6): 1278–1287. doi:10.1111/j.1529-8817.2010.00910.x. S2CID 86347770.
- ^ Bicudo, Carlos E. de M.; Menezes, Mariângela (2016). "Phylogeny and Classification of Euglenophyceae: A Brief Review". Frontiers in Ecology and Evolution. 4. doi:10.3389/fevo.2016.00017.
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