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Supplementary Material for: Maternal Footprints of Southeast Asians in North India

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posted on 28.01.2008, 00:00 by Villems R., Tyler-Smith C., Singh L., Reddy K.K., Rao A.P., Devasena R., Kumari B., Singh A.K., Dwivedi S.K.D., Singh S., Rao G., Gupta P., Sonvane V., Kumari K., Basha A., Bhargavi K.R., Lalremruata A., Gupta A.K., Kaur G., Shrivastava N., Thangaraj K., Chaubey G., Kivisild T., Selvi Rani D., Singh V.K., Ismail T., Carvalho-Silva D., Metspalu M., Bhaskar L.V.K.S., Reddy A.G., Chandra S., Pande V., Prathap Naidu B., Adarsh N., Verma A., Jyothi I.A., Mallick C.B.
We have analyzed 7,137 samples from 125 different caste, tribal and religious groups of India and 99 samples from three populations of Nepal for the length variation in the COII/tRNALys region of mtDNA. Samples showing length variation were subjected to detailed phylogenetic analysis based on HVS-I and informative coding region sequence variation. The overall frequencies of the 9-bp deletion and insertion variants in South Asia were 1.9 and 0.6%, respectively. We have also defined a novel deep-rooting haplogroup M43 and identified the rare haplogroup H14 in Indian populations carrying the 9-bp deletion by complete mtDNA sequencing. Moreover, we redefined haplogroup M6 and dissected it into two well-defined subclades. The presence of haplogroups F1 and B5a in Uttar Pradesh suggests minor maternal contribution from Southeast Asia to Northern India. The occurrence of haplogroup F1 in the Nepalese sample implies that Nepal might have served as a bridge for the flow of eastern lineages to India. The presence of R6 in the Nepalese, on the other hand, suggests that the gene flow between India and Nepal has been reciprocal.


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