Hello Nag,
If there is a reduction in diversity, it simply means that the particular group is a derivative (subset) population in comparison to the (more inchoate) total population. It does not show anything close to a foreign origin. If there was any possibility of the R group as a whole, or R1a1 in particular, originating outside subcontinent, it would be well known by now, especially with every geneticist in the world frantically looking for this precise thing for the past decade. The Kshatriyas are shown as mostly R2! They are trying to pull Punjab into Europe by using regional variations between R2 and R1 as a propaganda point. The other method is use autosomal studies which cannot delineate descent.
Also, the caste-tribal categories as they are used in current (western) social science are colonial and theological entities.
I agree with you that AIT is basically gone. If you look at Hock's diagram (here) in Talageri's latest book, you will see that his schema is ideologically oriented. Hittite is stretched southward and Tocharian is stranded by itself without any connection to the rest!!
India is like the Old world and the rest of Eurasia is like the New World in comparison to India.
If there is a reduction in diversity, it simply means that the particular group is a derivative (subset) population in comparison to the (more inchoate) total population. It does not show anything close to a foreign origin. If there was any possibility of the R group as a whole, or R1a1 in particular, originating outside subcontinent, it would be well known by now, especially with every geneticist in the world frantically looking for this precise thing for the past decade. The Kshatriyas are shown as mostly R2! They are trying to pull Punjab into Europe by using regional variations between R2 and R1 as a propaganda point. The other method is use autosomal studies which cannot delineate descent.
Also, the caste-tribal categories as they are used in current (western) social science are colonial and theological entities.
I agree with you that AIT is basically gone. If you look at Hock's diagram (here) in Talageri's latest book, you will see that his schema is ideologically oriented. Hittite is stretched southward and Tocharian is stranded by itself without any connection to the rest!!
India is like the Old world and the rest of Eurasia is like the New World in comparison to India.