@article {321735, title = {Early replacement of West Eurasian male Y chromosomes from the east}, journal = {bioRxiv}, year = {2019}, month = {2019/01/01}, pages = {867317}, abstract = {

The genomes of humans outside Africa originated almost entirely from a single migration out \~{}50,000-60,000 years ago1,2, followed closely by mixture with Neanderthals contributing \~{}2\% to all non-Africans3,4. However, the details of this initial migration remain poorly-understood because no ancient DNA analyses are available from this key time period, and present-day autosomal data are uninformative due to subsequent population movements/reshaping5. One locus, however, does retain extensive information from this early period: the Y-chromosome, where a detailed calibrated phylogeny has been constructed6. Three present-day Y lineages were carried by the initial migration: the rare haplogroup D, the moderately rare C, and the very common FT lineage which now dominates most non-African populations6,7. We show that phylogenetic analyses of haplogroup C, D and FT sequences, including very rare deep-rooting lineages, together with phylogeographic analyses of ancient and present-day non-African Y-chromosomes, all point to East/South-east Asia as the origin 50,000-55,000 years ago of all known non-African male lineages (apart from recent migrants). This implies that the initial Y lineages in populations between Africa and eastern Asia have been entirely replaced by lineages from the east, contrasting with the expectations of the serial-founder model8,9, and thus informing and constraining models of the initial expansion.

}, doi = {https://doi.org/10.1101/86731}, url = {https://www.biorxiv.org/content/10.1101/867317v1.full}, author = {Hallast, Pille and Agdzhoyan, Anastasia and Balanovsky, Oleg and Xue, Yali and Tyler-Smith, Chris} }