Tool to find population admixtures?

[reboun]

For example, I wish to find Turkic (Central Asian) admixture among Iranians. Is there a tool to achieve that goal?

[reboun]

Bump

[Zoro]

You should use tools that do one to one comparison between Iranians and specific Central Asian by counting how many genes are matched. Something like Plink IBS or IBD tools.

The worse tools to use for that are Admixture calculators that have non Turkic components similar to Iranians. For example, Dodecad K12 or Harappa calculators because these calculators have Caucasus and Gedrosian components.

Why do calculators with Caucasus and Gedrosian components reduce Turkic or C. Asian or Siberian or E. Asian in Iranians especially Kurds ?

Simply because Iranians, especially Kurds share alot of Genes with Caucasus and Gedrosian populations. If you non Turkic components similar to your study population they will increase the percentage of those at the expense of C. Asian or E. Asian. For example look at 23andme and ancestrydna. Since they have components from Caucasus and Iraq and Iran, Iranians will score close to 100% those at expense of C. Or E. Asian.

That’s why don’t use calculators because they’ll also unintentionally bias against certain populations.

Simply count one to one how many genes Iranians match with specific Turkic using IBS or IBD. Then compare that to how many genes Caucasians match with specific Turkic using IBS or IBD and then compare to how many genes Turks match with specific Turkic using IBS or IBD then compare to how many genes specific Europeans match with specific Turkic using IBS or IBD and so on. If you do you’ll be surprised. Also raw data format (23andme vs whole genomes makes a difference)

Another way you can do Dstats and see how shifted modern Iranians are to Turkic vs Iran-Chl to Turkic vs modern Europeans to Turkic vs Europe-Chl