User talk:Incognito222

http://en.wikipedia.org/wiki/User_talk:Dbachmann#Indigenous_Aryans

Genetic studies

A study headed by geneticist S.Sharma et al.(2009), collated information for 2809 Indians (681 Brahmins, and 2128 Tribals and Scheduled Castes). The results showed "no consistent pattern of the exclusive presence and distribution of Y-haplogroups to distinguish the higher-most caste, Brahmins, from the lower-most ones, schedule castes and tribals". In its conclusions, the study proposed "the autochthonous origin and tribal links of Indian Brahmins" as well as the origin of R1a1* in the Indian subcontinent

An increasing number of studies have found South Asia to have the highest level of diversity of Y-STR haplotype variation within R1a1a. On this basis, while several studies have concluded that the data is at least consistent with South Asia as the likely original point of dispersal (for example, Kivisild et al. (2003), Mirabal et al. (2009) and Underhill et all. (2009)) a few have actively argued for this scenario (for example Sengupta et al. (2005), Sahoo et al. (2006), Sharma et al. (2009). A survey study as of December 2009, including a collation of retested Y-DNA from previous studies, makes a South Asian R1a1a origin the strongest proposal amongst the various possibilities.

A study conducted by the Centre for Cellular and Molecular Biology in 2009 (in collaboration with Harvard Medical School, Harvard School of Public Health and the Broad Institute of Harvard and MIT) analyzed half a million genetic markers across the genomes of 132 individuals from 25 ethnic groups from 13 states in India across multiple caste groups. The study asserts, based on not identifying any genetic indicators across caste lines, that castes in South Asia grew out of traditional social organizations during the formation of Indian society and that the Indian population derives largely from two groups, with the "ancient north indian" group predating the advent of the Indo-Aryan languages. According to Kumarasamy Thangarajan, "The initial settlement took place 65,000 years ago in the Andamans and in ancient south India around the same time, which led to population growth in this part At a later stage, 40,000 years ago, the ancient north Indians emerged which in turn led to rise in numbers here. But at some point of time, the ancient north and the ancient south mixed, giving birth to a different set of population".