//On the paternal heritage of the Bantu expansion in Southeast Africa

On the paternal heritage of the Bantu expansion in Southeast Africa

On the paternal heritage of the Bantu expansion in Southeast Africa

Author(s): Rowold, D.J., Perez-Benedico, D., Stojkovic, O., Garcia-Bertrand, R. and Herrera, R.J.
Journal: Gene
Issue/Volume: in press
Page(s): in press
Year: 2016

Abstract:

Here we report the results of fine resolution Y chromosomal analyses (Y-SNP and Y-STR) of 267 Bantu-speaking males from three populations located in the southeast region of Africa. In an effort to determine the relative Y chromosomal affinities of these three genotyped populations, the findings are interpreted in the context of 74 geographically and ethnically targeted African reference populations representing four major ethno-linguistic groups (Afro-Asiatic, Niger Kordofanin, Khoisan and Pygmoid). In this investigation, we detected a general similarity in the Y chromosome lineages among the geographically dispersed Bantu-speaking populations suggesting a shared heritage and the shallow time depth of the Bantu Expansion. Also, micro-variations in the Bantu Y chromosomal composition across the continent highlight location-specific gene flow patterns with non-Bantu-speaking populations (Khoisan, Pygmy, Afro-Asiatic). Our Y chromosomal results also indicate that the three Bantu-speaking Southeast populations genotyped exhibit unique gene flow patterns involving Eurasian populations but fail to reveal a prevailing genetic affinity to East or Central African Bantu-speaking groups. In addition, the Y-SNP data underscores a longitudinal partitioning in sub-Sahara Africa of two R1b1 subgroups, R1b1-P25* (west) and R1b1a2-M269 (east). No evidence was observed linking the B2a haplogroup detected in the genotyped Southeast African Bantu-speaking populations to gene flow from contemporary Khoisan groups.


Source Link: http://www.sciencedirect.com/science/article/pii/S0378111916305704

Keywords

Peoples: Bantu | Places: Southeast Africa | Topics: Afro-Asiatic, Bantu expansion, Gene flow, Khoisan, Niger Kordofanin, and Pygmoid | DNA Type: Y-DNA

2016-07-26T06:41:59+00:00 July 26th, 2016|