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博士后进站报告(Dan Ju) 

发表日期:2024-01-18来源:放大 缩小

报告人:Dr.Dan Ju(巨丹)

报告题目:The architecture of local adaptation: evolution of height and skin pigmentation in humans

合作导师:付巧妹

评审委员会主席:周忠和

委员:刘武、李小强、高星、吴秀杰、付巧妹

时间:2024年1月22日(星期一)9:00

地点:702智人部落 

内容简介:

As human populations encountered various selection pressures in different environments throughout history, local adaptation on traits affecting reproductive success occurred. But the human evolutionary genetics field has few good examples of selection on polygenic phenotypes. 

Dr.Ju’s PhD dissertation studied directional selection on two traits showing marked differentiation in human populations that represent relatively the low and high ends of the spectrum of polygenicity. He examined light skin pigmentation evolution in Europeans and short stature evolution in a western Central African rainforest hunter gatherer population. Skin pigmentation in Europeans lacks a typical signal of polygenic selection, suggesting an oligogenic adaptive response, whereas there is suggestive evidence for polygenic selection for short stature in the Central African rainforest hunter gatherer population. 

He will extend the research into local adaptation to East Asian populations by combining knowledge of adaptation with the expertise and ancient DNA data during his postdoctoral work.

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