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<
https://github.com/braddelong/public-fi les/blob/master/grasping-reality/karmin-bottleneck-of-y-chromosome-diversity.pdf
> <
https://www.icloud.com/keynote/0TSPFIGJUsBJHWm0UMAqLe6UQ
>
2020-10-11
<
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4381518/
>
W
e date the Y-chromosomal most recent common ancestor (MRCA) in
Africa at 254 (95
%
CI 192–307) kya and detect a cluster of major non-
African founder haplogroups in a narrow time interval at 47–52 kya,
consistent with a rapid initial colonization model of Eurasia and Oceania
after the out-of-Africa bottleneck. In contrast to demographic
reconstructions based on mtDNA, we infer a second strong bottleneck in
Y-chromosome lineages dating to the last 10 ky. We hypothesize that this
bottleneck is caused by cultural changes affecting variance of
reproductive success among males
…
Doug Jones:
Patriarchal Age
<
https://
logarithmichistory.wordpress.com/2020/09/26/patriarchal-age/
>: ‘
back
in the day, not just did Lord Y (or whoever) have many wives and many
sons, but his sons, his sons’ sons. his son’s son’s sons, and so on, had
many offspring. This probably implies some kind of long-term social
memory, such that that the “Sons of Y” or the “House of Y” had a
privileged position for many generations
…
Monika Karmin
& al.:
A
Recent Bottleneck
of Y
-Chromosome
Diversity Coincides
with a
Global Change in Culture
Out-of-Africa explosion 50KY ago, & patriarchal collapse of male (but not female)
effective population size 8KY ago…
