Howdy Friends! Please join us for the PBIO Colloquium this Friday! We are lucky to have a superstar in evolutionary biology visiting us! Laura Kubatko, Professor of Statistics, Ecology, and Evolution Dept of Evolution, Ecology, and Organismal Biology, Ohio State University [Laura Kubatko, professor in statistics and evolution, ecology, and organismal biology] What gene trees do (and do not) tell us about species evolution and biodiversity 11:50 – 12:45, Friday, March 24 Room 104, Porter Hall Species-level phylogenetic trees represent the sequence of evolutionary events that have given rise to the species observed at the present time. Species trees may differ from gene trees — trees that represent the evolutionary history for individual genes throughout the genome — due to evolutionary processes such as hybridization, horizontal gene transfer, and ancestral polymorphism. In this talk, I will first describe models for the relationship between gene trees and species trees, focusing specifically on the case of ancestral polymorphism. I’ll then consider phylogenetically-based methods for studying biodiversity, and demonstrate the important distinction between genes trees and species trees. The impact of using gene trees vs. species trees will be examined with empirical data from several taxonomic groups, ranging from yeast to mammals. -------------- next part -------------- An HTML attachment was scrubbed... URL: < http://listserv.ohio.edu/pipermail/ocees/attachments/20230321/89d07ace/attachment-0001.html > -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 38335 bytes Desc: image001.jpg URL: < http://listserv.ohio.edu/pipermail/ocees/attachments/20230321/89d07ace/attachment-0001.jpg >
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