The true source of the Steppe ancestry in modern Indians (continued)

In my previous post, I concluded that the steppe ancestry in Indians is most likely to have arrived after 1000 BCE via the East Iranian-speaking Śāka. the ~850 CE TKM_IA sample turned out to be the best steppe source among the options provided.

Since then, a particular commentator on Twitter, who is adamant about the ~1500 BCE invisible steppe invasion into India has been putting alternative viewpoints in support of the old theory favoured by Kurganists. 

In his first attempt, he argued for an Inner Asian Mountain Corridor (IAMC) specific ancestry (Aigyrzhal_BA from Kyrgystan 2000 BCE as the proxy).

@Astra_2310 @DevarajaIndra @razibkhan @agenetics1

Tl;dr I'm arguing we need bronze age Aigyrzhal, not just Sintashta, to model the steppe ancestry in Indians. Thoughts? https://t.co/7SRF1KwXWs

— Ummon Karpe | 𑀅𑀫𑀦 𑀓𑀭𑀧𑁂 💎 (@The_Equationist) December 13, 2022

The true source of the steppe ancestry in modern Indians

 

This post aims to clarify the source of the bronze age steppe ancestry in modern Indians. For this, I have chosen the following targets.

Modern targets and their details