Post Atlantic scores from Eurogenes k15

[Kelmendasi]

Which ancient populations spread Atlantic?

[Brás Garcia de Mascarenhas]

"The Atlantic admixture appears to be a hybrid of Mesolithic hunter-gatherers and Neolithic farmers. All Mesolithic and Neolithic samples from Western Europe had about 25% of it. The only exception is for Mesolithic HG from Sweden (Motala) who had only 10%.

Prehistoric samples
Atlantic admixture
Mesolithic La Braña (Asturias, Spain) 27.3%
Mesolithic Loscbour (Luxembourg) 29.5%
Neolithic farmer from Stuttgart (LBK culture) 23.2%
Ötzi the Iceman (Chalcolithic farmer from the Alps) 25.5%
Gökhem2 (Swedish Neolithic farmer) 27.7%
Motala12 (Mesolithic HG from Sweden) 10.1%

What is surprising is that the modern frequencies have hardly changed at all in the last 7000 years in all these regions (Sweden being intermediary between the two samples, but closer to the Neolithic), despite the Indo-European invasions.

On the other hand, the Atlantic admixture appears to have spread eastward since the Bronze Age, as it was virtually absent from Russia even 4000 years ago.

There hasn't been any major historical migrations from west to east in Europe. It has always been the other way round. Therefore the most likely explanation for its diffusion eastward is by intermarriage between neighbours (on the scale of several millennia) and minor migrations like that of medieval Germans to Poland, Romania and the Volga, or Swedish Vikings to Eastern Europe."

In: http://www.eupedia.com/forum/threads...Eurogenes-K15)

[Peterski]

I think that this map is not entirely correct. Czechs tend to have more than Poles, IIRC.

[Brás Garcia de Mascarenhas]

I think that this map is not entirely correct. Czechs tend to have more than Poles, IIRC.

But is it more than the 10%-15% range?

[Petalpusher]

Atlantic fuckade (all above 20%)

French Basque 45.40
Aragon 35.04
SW_French 33.82
Castilla 33.09
Valencia 32.77
Cantabria 32.02
Irish 30.66
W Scottish 30.46
Murcia 29.93
SE English 29.86
Cataluna 29.63
Orcadian 29.01
SW English 28.94
Extremadura 28.49
Danish 27.76
N German 27.46
N Dutch 27.07
S Dutch 26.93
Portuguese 26.61
French 26.05
Galicia 24.88
W Norwegian 24.22
N Italian 23.60
Austrian 23.17
Swedish 22.58
W German 21.84
E German 21.71
Sardinian 21.19
Tuscan 20.09

[Peterski]

But is it more than the 10%-15% range?

Yes, much more. Here are "Atlantic" scores for 16 different Czechs:

21,25 - GEDmatch kit T406334
24,53 - GEDmatch kit T129685
23,94 - GEDmatch kit T972882
20,23 - GEDmatch kit M543637
22,33
18,87
23,99
14,45
17,01
19,55
18,09
20,82
22,72
21,10
22,68
23,12

Average "Atlantic" score for 16 different Czechs = 20.92

The lowest score is 14.45 and the highest score is 24.53

On the other hand, "North Sea" admixture is not so high among Czechs.

[Peterski]

The majority of Poles also score over 15% Atlantic and many over 20%.

In fact only North-Eastern Poles seem to be scoring below 15% Atlantic.

===============

Edit:

According to K15 spreadsheet, Polish average "Atlantic" is close to 19%.

[Damião de Góis]

I don't know how the portuguese sample on eurogenes evolved but from what i remember i was the only southern one. I score 29.13 so looking at that map and looking at the galician average there seems to be an increase as you go south, which is weird.

[Peterski]

I don't know how the portuguese sample on eurogenes evolved but from what i remember i was the only southern one. I score 29.13 so looking at that map and looking at the galician average there seems to be an increase as you go south, which is weird.

Viriato is from Northern Portugal and he scores 26.18%.

Which kind of confirms that it increases as you go south.

[Damião de Góis]

Viriato is from Northern Portugal and he scores 26.18%.

Which kind of confirms that it increases as you go south.

He is from central Portugal. But seeing as this is a basque component, it probably means galicians and near populations are a bit more removed from basques compared to the rest of iberians.