Origin of the AASI lineage and its specific regional substructure

Shinde et al. 2019 noted that both Andamanese Onge or East Siberian groups can be used as proxy for the non-West Eurasian-related component in the “qpAdm” admixture-modelling of AASI, because both populations “have the same phylogenetic relationship to the non-West Eurasian-related component, likely due to shared ancestry deeply in time”. According to Yang (2022), the distinct South Asian ancestry, denoted as the Ancient Ancestral South Indian (AASI) lineage, was only found in ancient and present-day South Asians. Present-day Onge from the Andamanese Islands are the best reference population to date, but Narasimhan et al. used qpGraph to show that the divergence between the AASI lineage and the ancestry found in present-day Onge was very deep. Yelmen et al. 2019 noted that the AASI diverged from the ancestor of both East Asians and Andamanese, and proposed the Southern Indian tribal groups, such as Paniya and Irula as better proxies for indigenous South Asian (AASI) ancestry. <a href="https://medium.com/@jacobharr96/origin-of-the-aasi-lineage-and-its-specific-regional-substructure-9719c4e7eb47">Website</a>