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Thread: Was there ever a genetic cline between Europeans and Caucasians? And if not, why?

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    Was there ever a genetic cline between Europeans and Caucasians? And if not, why?

    I am aware that the Europeans living near the Caucasus are Slavic Russians and therefore recent migrants to the region. The distance between them is unsurprisingly large. However, was there a point in time past the bronze age steppe cultures when there was a cline between the populations living in southern European Russia and the northern Caucasus mountains?

    It doesn't make sense that such a divide should exist. Even in SE Europe and Anatolia/West Asia, there did appear to be some sort of cline before the Turkic migration to the region interrupted it. So if a cline can exist between Greece and Turkey in spite of the Bosporus strait, why can't one exist between the Caucasus and Pontic steppe when the two are connected via land? Thanks for responding in advance.

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    Quote Originally Posted by Cynic View Post
    I am aware that the Europeans living near the Caucasus are Slavic Russians and therefore recent migrants to the region. The distance between them is unsurprisingly large. However, was there a point in time past the bronze age steppe cultures when there was a cline between the populations living in southern European Russia and the northern Caucasus mountains?

    It doesn't make sense that such a divide should exist. Even in SE Europe and Anatolia/West Asia, there did appear to be some sort of cline before the Turkic migration to the region interrupted it. So if a cline can exist between Greece and Turkey in spite of the Bosporus strait, why can't one exist between the Caucasus and Pontic steppe when the two are connected via land? Thanks for responding in advance.
    Mountains are a bigger barrier.

    The missing cline is the one between the European steppe, Central Asian steppe and South Central Asia.

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    Quote Originally Posted by Cynic View Post
    I am aware that the Europeans living near the Caucasus are Slavic Russians and therefore recent migrants to the region. The distance between them is unsurprisingly large. However, was there a point in time past the bronze age steppe cultures when there was a cline between the populations living in southern European Russia and the northern Caucasus mountains?
    That's one of the open questions regarding the formation of the steppe cultures, Yamnaya and the rest. When and how they mixed, etc.

    Quote Originally Posted by Cynic View Post
    It doesn't make sense that such a divide should exist. Even in SE Europe and Anatolia/West Asia, there did appear to be some sort of cline before the Turkic migration to the region interrupted it. So if a cline can exist between Greece and Turkey in spite of the Bosporus strait, why can't one exist between the Caucasus and Pontic steppe when the two are connected via land? Thanks for responding in advance.
    Greece and Turkey are connected by land and there was even more land in the Aegean, possibly land bridges, before the sea levels rose after the end of the LGM. So it's natural that people moved from one place to the other for thousands of years. "Europe" and "Asia" are geopolitical terms, I don't think prehistoric people considered Greece and Anatolia to be anything more than just neighbouring regions.

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