IronSide
Elite member
- Messages
- 883
- Reaction score
- 279
- Points
- 0
- Y-DNA haplogroup
- I2c2
- mtDNA haplogroup
- T2e1
This is a visualization of 4 principal components of West Eurasians, from a 2013 post on Eurogenes, it's very interesting.
We're familiar with this view I believe, it also has North Africans. (Click on the pictures to enlarge)
and these are the 4 dimensions
my thoughts:
1-the first PC captures an ancestry that is highest in Northeast Europeans and lowest in BedouinB, it separates Europe from West Asia and North Africa.
The source of this ancestry would probably be WHG and EHG, as they appear beyond Europe in the direction of European differentiation from the Near East, or it may separate the Basal Eurasian rich Near East and the less Basal Northeast Europe because that seems to be the common property between EHG and WHG given they score the highest and share the same position with regards to this first vector.
2-the second PC captures an ancestry that's highest in North Caucasians and the Chuvash people from the Steppe, and lowest in Sardinians and North Africans, ANE appears to the extreme end of this vector indicating that it's the source of this ancestry, ANE in the Near East is from the Caucasus and Iran probably, there are D stats that show Near Easterners (especially Caucasians) sharing more ancestry with Afontova Gora than with Mal'ta, so not all ANE populoations are the same, maybe an unsampled ANE related population closer to Iran is the source of this ancestry in the Near East.
3-the third PC captures a shared ancestry that is highest in the Caucasus, and south Europeans like Sardinians and Basques, and lowest in North Africans followed by Bedouins and Northeast Europeans, there must have been some shared ancestry between Anatolian Neolithic and CHG, this ancestry is not ANE, in Lazaridis et al(2016) Anatolia_Neo was modelled with 37% Iran_Neo but without any significant northward shift in the second PC, which seemed contradictory but it may be hinting for this deep ancestral connection.
4-the fourth PC is the strangest, an ancestry highest in Bedouins and Saudi Arabians and lowest in North Africans, with all West Eurasians packed in the middle, Northeast Euros are actually slightly closer to the Bedouins than North Caucasians are, and why are North Africans very differentiated in this PC from Bedouins ? historically they're all Afro-Asiatic speakers.
if such a group as Arabian hunter-gatherers exist, they may be the source of this ancestry, Natufians and EEF may share some of this hypothetical ancestry as well, and maybe its also connected with the strange negative f3 statistic (WHG: Saudi, Switzerland_HG) from Lazaridis(2016), and the Villabruna cluster affinity to Near Easterners.
We're familiar with this view I believe, it also has North Africans. (Click on the pictures to enlarge)
and these are the 4 dimensions
my thoughts:
1-the first PC captures an ancestry that is highest in Northeast Europeans and lowest in BedouinB, it separates Europe from West Asia and North Africa.
The source of this ancestry would probably be WHG and EHG, as they appear beyond Europe in the direction of European differentiation from the Near East, or it may separate the Basal Eurasian rich Near East and the less Basal Northeast Europe because that seems to be the common property between EHG and WHG given they score the highest and share the same position with regards to this first vector.
2-the second PC captures an ancestry that's highest in North Caucasians and the Chuvash people from the Steppe, and lowest in Sardinians and North Africans, ANE appears to the extreme end of this vector indicating that it's the source of this ancestry, ANE in the Near East is from the Caucasus and Iran probably, there are D stats that show Near Easterners (especially Caucasians) sharing more ancestry with Afontova Gora than with Mal'ta, so not all ANE populoations are the same, maybe an unsampled ANE related population closer to Iran is the source of this ancestry in the Near East.
3-the third PC captures a shared ancestry that is highest in the Caucasus, and south Europeans like Sardinians and Basques, and lowest in North Africans followed by Bedouins and Northeast Europeans, there must have been some shared ancestry between Anatolian Neolithic and CHG, this ancestry is not ANE, in Lazaridis et al(2016) Anatolia_Neo was modelled with 37% Iran_Neo but without any significant northward shift in the second PC, which seemed contradictory but it may be hinting for this deep ancestral connection.
4-the fourth PC is the strangest, an ancestry highest in Bedouins and Saudi Arabians and lowest in North Africans, with all West Eurasians packed in the middle, Northeast Euros are actually slightly closer to the Bedouins than North Caucasians are, and why are North Africans very differentiated in this PC from Bedouins ? historically they're all Afro-Asiatic speakers.
if such a group as Arabian hunter-gatherers exist, they may be the source of this ancestry, Natufians and EEF may share some of this hypothetical ancestry as well, and maybe its also connected with the strange negative f3 statistic (WHG: Saudi, Switzerland_HG) from Lazaridis(2016), and the Villabruna cluster affinity to Near Easterners.
Last edited: