What DNA Says About Aryan Invasion Theory -2

[Guest]

<!--QuoteBegin-->QUOTE<!--QuoteEBegin-->Map of Human Migration
<img src='http://en.wikipedia.org/wiki/Image:Map-of-human-migrations.jpg' border='0' alt='user posted image' />


A paper by Sengupta et al. offers a different theory. The main findings regarding R2 are:
• The geographic distribution of R2 mirrors closely the geographic distribution of R1a.
• The paper suggests that the origin of R1a in India was not Central Asia or the Indus valley. Wells by
contrast states that R1 originated in Central Eurasia, with R1b moving further west, and R1a staying in
Western Eurasia and moving east, towards India/Central Asia.
• The paper claims that there is no evidence that Central Asia was the source of the R1a and R2 lineages
in India. The theory that Central Asia could have been the recipient of the two lineages from India should
not be ruled out.
The paper disputes the theory that places the origin of R* in Central Asia. When one takes into consideration the
overall findings, the following scenario can be theorized:
• R* (ancestral clade to R2) emerged from an area located somewhere in the north of the Indian subcontinent.
Whether this area is in Baluchistan, the Punjab or West Bengal is yet unclear.
• An initial movement of R1 into Central Asia, and henceforth into Europe (figure 5).
• A subsequent movement of R1a into other parts of India and into Central Asia.
• A movement of R2 into other parts of India and into Central Asia (figure 6).
• When and where the R1a clade emerged from the main R1 clade is not addressed by this particular
scenario.
• Whether R2 broke off from the its ancestral R* clade before or after its sister clade R1 is not addressed
either.
Figure 5<!--QuoteEnd--><!--QuoteEEnd-->

http://hpgl.stanford.edu/publications/AJHG...78_p202-221.pdf