” where every single male sampled belonged to a single, newly introduced Y-lineage. Remarkably, this Bell Beaker Y-lineage is never seen before in Bohemia, implying that a new clan arrived in the region and almost immediately replaced all pre-existing Y-lineages with not a single lineage from Corded Ware or previous societies found among Bell Beaker males.”
Raiders from the steppes swept in and killed the men and took the women and supplanted the existing culture, probably an agrarian culture. Something like This:
“We came out of the rising sun and soon the west was overrun
So great a train of us did past
The first knew nothing of the last
We forged along, we stormed along
We were victorious and strong!
The first would fall, the next would stand, the third was ready sword in hand
We did not stay, we came in haste, one seized a woman to his taste
One seized an oxen from a stall, where horses were we took them all....”
Goethe, song of the Western Man.
Barbarian invasions. I suspect that most of them are pretty much the same.
In the article it says that the Corded Ware were mainly R1a- (later says early Corded Ware Bohemia is R1a-M417). Corded Ware is from about 2900 B.C.
The Yamnaya ancestry is mainly R1b-Z2103. (Yamnaya culture of the steppe region north of the Black Sea and Caspian Sea is often identified as the culture of the Proto-Indo-European speakers.)
The Bell Beaker men (from c. 2500 B.C. on) are predominantly R1b-P312. But this decreases from 100% to about 20% in the "preclassical Unetice" period.
Lots of technical language. R1b is very common in the British Isles but the article says the Bohemian R1b and the English R1b cannot be descended one from the other but probably descend from a common ancestor somewhere in between, maybe in the Rhine River area.
“This pattern may reflect the emergence of a new social structure or regulation of mating in which only a subset of men fathered the majority of offspring”, says first author Luka Papac, a researcher at the Max Planck Institute for the Science of Human History.
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This is where “the traveling salesman and the farmer’s daughters” thing started.
