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SUMMARY:Sriram Sankararaman\, The role of archaic admixture in human evolution
DESCRIPTION:Dr. Sriram Sankararaman \nUCLA Departments of Computer Science\, Human Genetics\, and Computational Medicine \nhttp://web.cs.ucla.edu/~sriram/ \nThis talk will be in person as well as being accessible via Zoom. \nTitle: The role of archaic admixture in human evolution \n                                                                                                                                                                                                     \nAbstract: Over the past decade\, the ability to sequence genomes from both present-day   \nand archaic humans (including our closest evolutionary relatives\, the Neanderthals) has transformed our understanding of human history. Analyzing these genome sequences paints a picture of human history in which present-day humans migrated out of Africa but exchanged genes with multiple archaic human populations. I will describe statistical methods that identify segments of DNA inherited from archaic humans that are surviving in our genomes today and how these maps of introgressed archaic DNA are providing insights into human migration and biology.  Despite this progress\, our understanding of the contribution of archaic introgression to populations in Africa remains limited\, in part due to the challenges in obtaining ancient DNA in Africa. Leveraging recently developed approaches that enable inferences about archaic populations without access to their genome sequences\, we show that west African populations today inherit substantial genetic ancestry from an as-yet-unidentified archaic ghost population that diverged prior to the split of modern humans and Neanderthals. Finally\, we combine maps of introgressed Neanderthal DNA with phenotypic datasets collected in hundreds of thousands of individuals to assess the contribution of introgressed Neanderthal DNA to complex traits.    \nZoom: https://ucla.zoom.us/j/92826436236?pwd=SytQNTNPSWdwaDNlTm05d2srdXNHUT09 \nMeeting ID: 928 2643 6236 \nPasscode: BEC
URL:https://bec.ucla.edu/event/sriram-sankararaman-title-tba/
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