R1a-Z93 & Kurds

[Zoro]

Forgot to mention that this is what I was told why can't rely on Admixture, PCA or G-25 for actual direct ancestry from a specific population is because they cluster based total drift since the beginning of time. For example, if we look at 3 subjects on PCA or G-25

an Italian
a British
a half British half Ethiopian mulato

The British and Italian will cluster near each other or on G-25 have closer coordinates to each other than the Mulato to the British, even though the Mulato has 1 actual British parent because the British and Italian share a ton of very very old ancestry whereas the Mulato has 50% African ancestry which would place him further away from the European cluster even though 1 of his parents is actually British and the Italian doesn't have a British parent.

That's why PCA or G-25 is not accurate when it comes to more recent direct ancestry especially if we try to find steppe ancestry in Middle-Eastern populations that have alot of Basal Eurasian ancestry. The Basal Eurasian ancestry plots them further away from Andronovo than a European on PCA or G-25 since Europeans and Andronovo share more much older ancestry with each other (more WHG and EHG) than a Middle-Eastern and Andronovo (less WHG less EHG more Basal more SW Asian )

That's we have to do IBD using a reliable method or use some formal stats to figure out more recent direct ancestry. That's also why PCA and G-25 will change alot depending on what samples are in the run. Doesn't mean that IBD is 100% foolproof since it has little error margin but it's generally much more suitable for figuring out direct ancestry

[Zoro]

I was able to dig up some IBD runs Dilawer from Eurasian DNA had done for me a while back. He explained that these were done using BEAGLE FASTIBD and were the most accurate ones out there because he had only used the most accurate high coverage ancients AND he was able to use 680K SNPs.

BEAGLE filters out all IBD segments that are common shared among different populations due to some very deep ancestry. Dilawer threw out any segments under 100 SNPs and only kept segments that are rare enough to have a threshold IBD score below 1E-10 and have come directly from the ancestral population. According to BEAGLE:



I found this run he had done for me using a high quality ANDRONOVO-MLBA sample. Goes to show why you can't rely on ADMIXTURE or PCA or G-25 to figure out direct ancestry. Notice how high Kurds are in the table compared to other West Asians.

POPULATION	TOTAL IBD (avg)
Lithuanians	5,230.33
Karelians	4,899.33
Cossacks	4,688.50
Latvians	4,512.00
Tajik_Pamiri	4,507.00
Maris	4,168.50
Chuvashes	4,123.00
Saami	4,031.00
Belarusians	4,014.75
Ukrainians	3,967.14
Russians	3,959.00
Russians-Central	3,944.50
Kryashen-Tatars	3,772.33
KURDS-IRAQ-KURMANJI	3,767.00
Estonians	3,711.83
Tatars	3,449.67
Germans	3,377.67
Bashkirs	3,335.80
Tabasarans	3,325.67
Croats	3,161.50
Avars	3,147.67
Mansis	3,120.33
Moldavians	2,649.00
Turkmens	2,526.33
Circassians	2,417.00
Kumyks	2,347.67
Russians-North	2,150.50
North-Ossetians	2,096.50
Iranians	2,059.25
Lezgins	1,954.00
Albanians	1,939.67
Kazakhs	1,851.00
Kyrgyz_Tdj	1,775.00
Uzbek	1,745.67
Abkhazians	1,657.67
Cossacks_Kuban	1,624.50
Azerbaijanis	1,437.33
Iran_Zoroastrian	1,421.85
Tuvinians	1,402.50
Balkars	1,341.67
Orissa	1,313.00
Altaians	1,254.17
Ho	1,250.00
Jordanians	1,250.00
Assyrians	1,202.67
Tajiks	1,114.00
Armenians	1,090.00
Kyrgyz	995.00
Punjabis	992.00
Druze	878.67
Gupta	834.00
Sakha	772.00
Saudi-Arabians	754.00
Buryats	713.79
Marwadi	713.00
Uygurs	712.00
Chukchis	692.33
Arabs-Israel	666.00
Mongolians	633.00
Georgians	612.50
Santhal	564.00
Koryaks	540.33
Evenks	504.20
Yakuts	159.00

I also asked what about IBD on Gedmatch. The reply I got was that in order for IBD to be more accurate we have to first phase the samples DNA and then we have to be able to distinguish whether a segment you share with someone is a common segment that a quarter of the world has or is a more rare segment that only a few have. He doesn't believe that Gedmatch phases or distinguishes rare from common segments.

[Zoro]

A little off topic. I also found these where I had paid Eurasian DNA to do IBD analysis for me to see how much IBD I shared with different populations using 680K SNPs.

POPULATION	AVG IBD PER SAMPLE
Assyrians	2,538.33
Moldavians	1,989.00
Saudi-Arabians	1,988.00
North-Ossetians	1,586.00
Abkhazians	1,566.67
Georgians	1,446.00
Uygurs	1,385.00
Azerbaijanis	1,337.67
Tatars	1,301.33
Balkars	1,297.33
Armenians	1,296.67
Avars	1,252.33
Lezgins	1,164.00
Iran_Zoroastrian	1,081.30
Belarusians	1,065.75
Tajiks	1,006.00
Iranians	991.50
Ukrainians	985.57
Kumyks	969.67
Cossacks	960.50
Chuvashes	949.67
Karelians	935.33
Druze	926.00
Tajik-Tajikistan	878.50
Latvians	842.00
Albanians	835.00
Turkmens	825.33
Kshatriya	820.00
Jordanians	804.00
Maris	781.75
Croats	688.50
Saami	676.00
Tabasarans	669.67
Russians	662.00
Circassians	654.67
Kyrgyz_Tdj	587.33
Lithuanians	582.67
Estonians	475.50
Indian_South	411.00
Kyrgyz	390.00
Uzbek	375.67
Buryats	362.18
Kazakhs	269.00
Mansis	266.00
Bashkirs	245.60
Altaians	226.17
Indian_East	207.67
Punjab	158.00
Burmese	124.13
Yakuts	119.00
Evenks	98.85
Sakha	95.57
Sub_Saharan	88.67
Koryaks	66.19
Batak	59.67
Chukchis	56.20
Kosipe	55.00