Saturday, March 5, 2016

Continuing tests with ancient Brits

Before going ahead with Roman Age samples I want to publish a PCA plot including all ancient Brits, excluding the Middle Eastern one.   It look like on the main axis all Roman Age samples are very close present-day Brits and Irishmen.  The Anglo-Saxon and Roman Age sample 7 are closer Swedes.  All those samples turn on the second axis somewhat towards Basques.  But the the Iron Age sample is clearly different, it locates just between France and England.  Maybe she was from Bretagne/Brittany.  I am not aware of the British history why just the Iron Age sample from Melton would look like this.

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5 comments:

  1. Can you do the same PCA, but with also the FinLocal group included?

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    1. Sure, in the next chance I'll make a link here. I dind't include all possible populations, for example Estonians, because the subject was ancient Brits.

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  2. Just to be "chauvinistic" (not really, just joking), don't most ancient Brits diverge in your graph, from modern Brits/Irish/mainline North Europeans, slightly in the Basque direction? I'm not sure what's the interpretation but that's what stroke my eye the most: pretty much like modern Brits/Irish but slightly more Basque-like.

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    1. Yeah, I saw it and also commented in my pervious post. But not all show clear tendency towards Basques, only Roman Age Brits. I think that during the time from the British Iron Age to the time of Vikings British Isles received many continental groups, some being quite violent. If so, it is likely that there were at the same time a genetic diversity depending on where they lived in British Isles. My humble opinion is that an older Basque connection was very possible there and it piece by piece became diluted by newcomers. So in some areas it still existed during movements from Bretagne, Germany and Sscandinavia, even from Rome. I have to admit that I have not much expertise of British history, but ironically can say that Brits obviously have it less regarding Finnish history, so also I have my fairness to say something about British history :)

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    2. Yeah, it's not Basques as such but it's the only reference that falls near the approximate tendency of those ancient Brits, say something "Atlantic" that does not exist as such anymore except (in a different branch) among Basques. Alternatively something "Mediterranean" (Sardinians are topmost in that vertical dimension although a worse fit in the horizontal one), greater EEF inheritance probably.

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