Проблемы китайского и общего языкознания. К 90-летию С. Е. Яхонтова

 506  George van Driem   be complex [Underhill et al . 2010]. Similarly, it has been proposed that the Y chromosomal lineage L, which shows a great diversity of subclades on the Ira- nian highland, can be identified as the possible marker of a patrilingual disper- sal of Elamo-Dravidian emanating from a region which included the Bactria and Margiana of later prehistory [van Driem 2012a: Figure 24]. One of these Y chromosomal L subclades appears to be correlated with the patrilingual spread of Dravidian languages from the Indus Valley into south India (Figure 25). The Beluch show haplogroup L at a greater frequency than any other group in Pakistan, far more so than the Brahui [Qamar et al . 2002; Haber et al . 2012]. This paradoxical finding can, however, permit us to make inferen- ces about the historical sociolinguistic situation in the aftermath of the Indo- Aryan incursion into the territory of the Indus civilisation and the Himalayas. The complex intercourse and extensive bilingualism which have historically characterised the Brahui-Baluchi commensality has been documented and described by [Bray 1909, 1934; Emeneau 1962a, 1962b] and [Elfenbein 1982, 1983, 1987]. We may infer that, in part, the Beluch represent the in situ descendants of the ancient Dravidians who peopled the Indus civilisation. The ancestors of the Beluch, however, opted to assimilate linguistically to the incursive Figure 25. Geographical distribution of Dravidian