When, and how exactly, did ANI become ANE? I didn't get the memo.
The geographical distribution of the dark green component (ASI or Ancestral South Indian- unique to the subcontinent) was largely limited to the Indian subcontinent, and can be seen among all the populations of the subcontinent albeit in variable amount, whereas the second major component (light green: ANI or Ancestral North Indian (now ANE- Ancestral North Eurasian )) was shared with Central Asia, the Caucasus, Middle East and Europe (Fig 1c). The geographical origin of light green component (ANI or ANE) is so far unclear and more research is needed from unsampled area as well as from ancient DNA; however, the time of spread of this component from its origin place (either of any; the Caucasus, Near East, Indus Valley, or Central Asia) has happened more than 12.5 thousand years before , which is significantly earlier than the purported expansion of Dravidians and Aryans languages from outside the subcontinent. Notably, the Andaman Islanders are not the only population carrying the ASI component exclusively, as was suggested before . Austroasiatic speakers (more precisely, the South Munda) of the subcontinent also seem to possess the ASI component in near unadulterated form (Fig 1c). More research with complete genome analysis would be required to clear the geographic center of the ANE component; however, it is evident from the present analysis that the dark green component (ASI) can be considered as a connecting thread for all the Indian populations (Fig 1c). Taken together, these results support the second hypothesis suggesting that all Indians, irrespective of their caste or tribal affiliations, share a common genetic ancestry, which is undoubtedly founded over the indigenous ASI component.
Citation: Chaubey G, Kadian A, Bala S, Rao VR (2015) Genetic Affinity of the Bhil, Kol and Gond Mentioned in Epic Ramayana. PLoS ONE 10(6): e0127655. doi:10.1371/journal.pone.0127655