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Credit: © Kairi Aun | 123RF.com Diverse East Asians derive ancestry from a coastal expansion tens of thousands of years ago Researchers have long debated whether the peopling of East Asia by modern humans occurred mainly via a coastal or interior route. The answer is probably both. Indigenous Andaman islanders of the Bay of Bengal, Indigenous Tibetans, ancient Taiwanese, and ancient and modern Japanese all derive ancestry from a deep shared lineage that split from other East Asian lineages more than 40,000 years ago, says David Reich, co-senior author of the study, who is a Professor of Genetics and Human Evolutionary Biology at Harvard University and an Investigator of the Howard Hughes Medical Institute. The simplest way to explain this is if some of the earliest modern humans in East Asia spread along a coastal route linking southeast Asia, coastal China, and the Japanese Archipelago. In contrast, the 40,000 year old Tianyuan individual along with present-day and early Holo

United statesArkhangel skaya oblastYellow riverChina generalTibetan plateauJohannes krauseChuan chao wangRon pinhasiShuqin zhangDavid reichHuman evolutionary biology at harvard universityMax planck institute for evolutionary anthropologyInvestigator of the howard hughes medical instituteHarvard medical schoolXian jiaotong universityInstitute of anthropology at xiamen university