I'm putting together a G25 Proto-Indo-European master sheet that I'll be using in a future blog post about the Indo-European, or, if you wish, Indo-Anatolian homeland.
An early version of the master sheet is available
HERE. Please note, the first pop label is my own while the second one is from the v66.2M.AADR dataset.
I'm aiming to expand it significantly and update it regularly. Below is a
Vahaduo G25 West Eurasia PCA with all the samples. What am I missing? Feel free to let me know in the comments.
Spoiler alert! Here are a few of the revelations that you can expect in the aforementioned blog post about the Indo-European homeland:
- Yamnaya is almost certainly derived from Serednii Stih (aka Sredny Stog). I've been talking about this for years and you can probably pick it up without too much trouble in the PCA above. Finally, even Iosif Lazaridis, David Reich, Nick Patterson and friends are now on board with this idea as per their latest paper on the topic (see Lazaridis et al. 2025).
- However, I'm not convinced by the Lazaridis et al. hypothesis that the Caucasus–lower Volga (CLV) cline is intimately linked to the Indo-Anatolian and proto-Anatolian expansions. That's because the CLV cline is an artifact of isolation-by-distance working for thousands of years across a vast and highly diverse landscape, and it includes a wide range of populations that usually have nothing to do with each other.
- The question of who actually spoke Indo-Anatolian first will, in all likelihood, never be solved to everyone's satisfaction. But the number of true candidate groups is actually quite small, and I reckon they're almost certainly all highlighted in my PCA above. Wink, wink, nudge, nudge.
See also...
The Caucasus is a semipermeable barrier to gene flow
