North European ADMIXTURE Component From Eurogenes And Dodecad
I am starting this topic as I know mane here also have an interest in the ADMIXTURE components from both the Eurogenes and Dodecad Projects. As most of you know both Polako and Dienekes have found what they call a ''North European'' ancestral component in their different ADMIXTURE analysis. This component as you know is the dominant autosomal ancestral component all over Northern and Central Europe. It is spread from Ireland in the far west to Russia in the far east. Now Polako seems to think that it originated in groups that formed in the Baltic region during the middle or late Neolithic. It arose from the mixing between local Mesolithic origin hunter-gatherers and incoming Neolithic farmers. He then thinks that is spread around later to all parts of Europe including Ireland in the very far west with Indo-European speakers. The problem that I see with this theory though is that there really are no indications of massive population movements into Britain or Ireland since the Neolithic period. So what then explains the presence of the North European component in all of the populations of Northern and Central Europe? That is how can the Irish and the Russians both score so high in the North European ADMIXTURE component when they come from the opposite sides of Europe and have very different population histories? Does this component relate back to common Mesolithic hunter-gatherer ancestry that survived in both Ireland and Russian and many other parts of Europe?
North European Component From Eurogenes and Dodecad Calculators
What do people here think about the origins of the North European component that both Polako and Dienekes discovered in their different calculators such as the Eurogenes K9 and K13 and the Dodecad K12b and globe13? We know that this component was the dominant one among the ancient Mesolithic Iberian hunter-gatherers from La Brana and also the later PWC hunter-gatherers from Sweden but these ancient samples are still outside the range of modern variation apparently. So it seems then that the North European component can't really be a purely Upper Paleolithic or Mesolithic component when seen in modern Europeans today. So what is it then exactly? A combination of old Mesolithic European hunter-gatherer genes and later incoming Neolithic farmer type genes? Thoughts?