Tag

Jomon

All articles tagged with #jomon

science9 days ago•7 min saved

Jomon Genomes Reveal Stepwise Cold-Weather Adaptations in Ice-Age Humans

Scientists analyzed genomes from 42 Jomon individuals and used imputation to infer missing data, uncovering genetic adaptations linked to cold tolerance—such as nonshivering thermogenesis in brown fat and fatty‑acid metabolism—that likely helped these ancient populations survive icy climates. The findings suggest incremental, region‑specific adaptations during the last glacial period, with some variants showing Inuit-like convergence, highlighting a paleogenomic legacy that may continue to influence modern human variation and health.

via ScienceAlert|

#brown-fat #cold-adaptation #convergent-evolution

geneticsanthropology2 years ago•2 min saved

"Uncovering the Ancestral Roots of Modern Japanese People Through DNA Study"

A DNA study of 3,200 modern Japanese people suggests that they may have a third, previously unknown ancestral group, in addition to the Jomon and Yayoi people. This group likely arrived during the transition from the Yayoi to Kofun period and is thought to have originated from Northeast Asia. The study found that modern Japanese people have genetic contributions from Jomon, Yayoi, and this third unknown ancestral group, with the highest Jomon ancestry found in Okinawa. Further research is needed to confirm the connection to Northeast Asia and the specific origins of this third ancestral group.

via IFLScience|

#dna-study #geneticsanthropology #japanese-ancestry