Why do Slavs lack Gedrosia DNA?

[JQP4545]

Nearly half of Yamnaya's DNA comes from Caucasus Hunter Gatherers and on Dodecad K12b this always shows up as "Gedrosia" when Yamnaya samples are run through this calculator on Gedmatch. However, this component is mostly absent in Eastern Europe/modern day Slavs who are predominantly carriers of haplogroup R1a. Why do Slavs lack this component that is found in the rest of Europe?

[Leto]

We don't. My father is mostly Belorussian, he gets 5% Gedrosia on K12b

Admix Results (sorted):

# Population Percent
1 North_European 59.53
2 Atlantic_Med 20.98
3 Caucasus 11.15
4 Gedrosia 5.06
5 Siberian 1.64
6 South_Asian 0.76
7 Southeast_Asian 0.5
8 Southwest_Asian 0.39

[MercifulServant]

Slavs are very diverse South Slavs and North Slavs are very different genetically. Which slavic group are you talking about?

[JQP4545]

Slavs are very diverse South Slavs and North Slavs are very different genetically. Which slavic group are you talking about?

If you look at the Dodecad k12b spreadsheet Poles, Russians, and Ukrainians almost completely lack this component.

[Leto]

If you look at the Dodecad k12b spreadsheet Poles, Russians, and Ukrainians almost completely lack this component.
The K12b sheet is quite inaccurate. At least for some ethnic groups it's completely off. The Belorussian average is very unrepresentative.

[MercifulServant]

If you look at the Dodecad k12b spreadsheet Poles, Russians, and Ukrainians almost completely lack this component.

Large percentages of gedrosia is pretty alien to europe. CHG might be the caucasus component I guess

[Leto]

My results

Admix Results (sorted):

# Population Percent
1 North_European 56.31
2 Atlantic_Med 18.91
3 Caucasus 10.8
4 Gedrosia 5.03
5 Siberian 4.61
6 Southwest_Asian 3.03
7 East_Asian 0.67
8 South_Asian 0.42
9 Southeast_Asian 0.23

We usually range between 3 and 6% or so on this calculator.

[JQP4545]

So could the CHG component in Eastern Europe be represented more as "Caucasus" on Dodecad k12b or would that come from the farmers?

[Leto]

So could the CHG component in Eastern Europe be represented more as "Caucasus" on Dodecad k12b or would that come from the farmers?
I think Gedrosia is Iran Chacolithic and Caucasus is CHG proper.

[Pahli]

I think Gedrosia is Iran Chacolithic and Caucasus is CHG proper.

Gedrosia is some kind of Iran_Neo / Brahui component, peaks around Baluchistan / Makran region