Not-so-hostile takeover: Human Y chromosome displaced the Neanderthals’ version – My programming school

Comparison of Modern Human and Neanderthal skulls from the Cleveland Museum of Natural History.

Comparison of Modern Human and Neanderthal skulls from the Cleveland Museum of Natural History. (credit score: hairymuseummatt


We know that Neanderthals left their mark behind in the DNA of many fashionable people, however that alternate labored each methods. The teams of Neanderthals our species met in Eurasia round 45,000 years in the past already carried some Homo sapiens genes as souvenirs of a lot earlier encounters. A latest research means that these early encounters allowed the Homo sapiens version of the Y chromosome to fully exchange the unique Neanderthal one someday between 370,000 and 100,000 years in the past.

Evolutionary geneticists Martin Petr, Janet Kelso, and their colleagues used a brand new methodology to sequence Y-chromosome DNA from two Denisovans and three Neanderthals from websites in France, Russia, and Spain (all three lived 38,000 to 53,000 years in the past). The oldest Neanderthal genomes in Eurasia have Y chromosomes that look rather more like these of Denisovans. Later Neanderthals, nevertheless, have Y chromosomes that look extra like these of us people.

Gene circulate is a two-approach road

Tens of 1000’s of years in the past, our species shared the world with a minimum of two different hominins. The instruments, beads, and artwork they left behind trace that these different people had been most likely rather a lot like us. And we had been positively all alike sufficient to have, apparently, a little bit of intercourse.

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