The Indian origin of paternal haplogroup R1a1* substantiates the autochthonous origin of Brahmins and the caste system
ABSTRACT Many major rival models of the origin of the Hindu caste system co-exist despite extensive studies, each with associated genetic evidences. One of the major factors that has still kept the origin of the Indian caste system obscure is the unresolved question of the origin of Y-haplogroup R1a1*, at times associated with a male-mediated major genetic influx from Central Asia or Eurasia, which has contributed to the higher castes in India. Y-haplogroup R1a1* has a widespread distribution and high frequency across Eurasia, Central Asia and the Indian subcontinent, with scanty reports of its ancestral (R*, R1* and R1a*) and derived lineages (R1a1a, R1a1b and R1a1c). To resolve these issues, we screened 621 Y-chromosomes (of Brahmins occupying the upper-most caste position and schedule castes/tribals occupying the lower-most positions) with 55 Y-chromosomal binary markers and seven Y-microsatellite markers and compiled an extensive dataset of 2809 Y-chromosomes (681 Brahmins, and 2128 tribals and schedule castes) for conclusions. A peculiar observation of the highest frequency (up to 72.22%) of Y-haplogroup R1a1* in Brahmins hinted at its presence as a founder lineage for this caste group. Further, observation of R1a1* in different tribal population groups, existence of Y-haplogroup R1a* in ancestors and extended phylogenetic analyses of the pooled dataset of 530 Indians, 224 Pakistanis and 276 Central Asians and Eurasians bearing the R1a1* haplogroup supported the autochthonous origin of R1a1 lineage in India and a tribal link to Indian Brahmins. However, it is important to discover novel Y-chromosomal binary marker(s) for a higher resolution of R1a1* and confirm the present conclusions.
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ABSTRACT: This article attempts to merge the data of contemporary linguistics and DNA genealogy in order to describe the migrations and settlement of peoples and languages in Europe after the last Ice Age. In the new paradigm, three important groups of players have been identified: - R1a haplogroup bearers, conditionally identified as Aryans. They arose around 20,000 years before the present (ybp) in central Asia and the Altai Mountains; after their migration along the southern route, they arrived in Europe between 10,000-9,000 ybp, bringing proto-Indo European (PIE) and Indo European (IE) languages. In 4800 ybp they migrated eastward from Europe to the Russian Plain and then to India. About 3000-2500 ybp they migrated with their IE languages from the Russian Plain back to central, western, and southern Europe, laying the genetic groundwork for peoples later called Celts, Germans, Italics, Greeks, Illyrians, and Balto-Slavs. - E, F, G, J, I, K haplogroup bearers. The dates of their arrival in Europe (sometime before 5,000 ybp) and their migration routes remain obscure. They apparently spoke non-IE languages. - R1b haplogroup bearers, called the Arbins. They arose about 16,000 ybp in central Asia, and migrated to Europe along a northern route. They arrived in Europe between 4,800 and 4,500 ybp bringing with them several non-IE languages. It seems that the arrival of the Aryans (R1a) in Europe was peaceful. There are no clear indications that their arrival triggered any sort of violence. However, the migration of the Arbins (R1b) was marked by an almost complete elimination of the E1b, F, G2a, J, I1, I2, and K haplogroups from Europe. Our analysis of current linguistic theories in the light of DNA genealogy data demonstrates that: - the Anatolian theory is generally compatible with DNA genealogy data; - the Vasconic and Afro-asiatic substratum theory is partially in agreement with DNA genealogy data; - the Kurgan theory and the Palaeolithic Continuity Theory (PCT) appear incompatible with the history of Europe based on haplogroup data. - the "Out of Africa" theory has questionable validity.Advances in Anthropology 05/2013; Vol. 3(No. 2):101-111. DOI:10.4236/aa.2013.32014
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ABSTRACT: Haplogroup R1a1-M198 is a major clade of Y chromosomal haplogroups which is distributed all across Eurasia. To this date, many efforts have been made to identify large SNP-based subgroups and migration patterns of this haplogroup. The origin and spread of R1a1 chromosomes in Eurasia has, however, remained unknown due to the lack of downstream SNPs within the R1a1 haplogroup. Since the discovery of R1a1-M458, this is the first scientific attempt to divide haplogroup R1a1-M198 into multiple SNP-based sub-haplogroups. We have genotyped 217 R1a1-M198 samples from seven different population groups at M458, as well as the Z280 and Z93 SNPs recently identified from the "1000 Genomes Project". The two additional binary markers present an effective tool because now more than 98% of the samples analyzed assign to one of the three sub-haplogroups. R1a1-M458 and R1a1-Z280 were typical for the Hungarian population groups, whereas R1a1-Z93 was typical for Malaysian Indians and the Hungarian Roma. Inner and Central Asia is an overlap zone for the R1a1-Z280 and R1a1-Z93 lineages. This pattern implies that an early differentiation zone of R1a1-M198 conceivably occurred somewhere within the Eurasian Steppes or the Middle East and Caucasus region as they lie between South Asia and Eastern Europe. The detection of the Z93 paternal genetic imprint in the Hungarian Roma gene pool is consistent with South Asian ancestry and amends the view that H1a-M82 is their only discernible paternal lineage of Indian heritage. © 2012 Wiley Periodicals, Inc.American Journal of Physical Anthropology 12/2012; 149(4). DOI:10.1002/ajpa.22167 · 2.51 Impact Factor
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ABSTRACT: According to written sources, Roma (Romanies, Gypsies) arrived in the Balkans around 1,000 years ago from India and have subsequently spread through several parts of Europe. Genetic data, particularly from the Y chromosome, have supported this model, and can potentially refine it. We now provide an analysis of Y-chromosomal markers from five Roma and two non-Roma populations (N = 787) in order to investigate the genetic relatedness of the Roma population groups to one another, and to gain further understanding of their likely Indian origins, the genetic contribution of non-Roma males to the Roma populations, and the early history of their splits and migrations in Europe. The two main sources of the Roma paternal gene pool were identified as South Asian and European. The reduced diversity and expansion of H1a-M82 lineages in all Roma groups imply shared descent from a single paternal ancestor in the Indian subcontinent. The Roma paternal gene pool also contains a specific subset of E1b1b1a-M78 and J2a2-M67 lineages, implying admixture during early settlement in the Balkans and the subsequent influx into the Carpathian Basin. Additional admixture, evident in the low and moderate frequencies of typical European haplogroups I1-M253, I2a-P37.2, I2b-M223, R1b1-P25, and R1a1-M198, has occurred in a more population-specific manner.American Journal of Physical Anthropology 05/2011; 145(1):21-9. DOI:10.1002/ajpa.21454 · 2.51 Impact Factor