Metspalu actually states point blank that the "West Eurasian" component is derived from S Asia :
"do the observed instances of shared ancestry component and selection signals reflect secondary gene flow between two regions, or do the populations living in these two regions have a common population history,[color="#0000FF"] in which case it is likely that West Eurasian diversity is derived from the more diverse South Asian gene pool.[/color]"
"do the observed instances of shared ancestry component and selection signals reflect secondary gene flow between two regions, or do the populations living in these two regions have a common population history,[color="#0000FF"] in which case it is likely that West Eurasian diversity is derived from the more diverse South Asian gene pool.[/color]"