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Seminar 9/2: Chi Zhang

posted Feb 2, 2017, 5:52 AM by Allison Hsiang
Our first 2017 SPG seminar will be given by Chi Zhang, former postdoc with Fredrik Ronquist and current postdoc with Tanja Stadler at D-BSSE, ETH Zürich.

All are invited and encouraged to attend!

Title:  Bayesian inference of species networks from multilocus data
Date:  February 9, 2017
Time:  15:00-16:00
Place:  KÖL Lunch Room (Frescativägen 54)

Abstract:  Hybridization plays an important role during speciation in certain animals and plants. The process leaves “fingerprints” in the genomic data, yet there is a lack of models and tools for analyzing such data.  We developed a Bayesian method to infer species networks from multilocus sequence data. The method applied the multispecies network coalescent (MSNC) model for the gene trees embedded in the species network, which accounts for gene tree discordance due to incomplete lineage sorting and reticulate species evolution such as hybridization or introgression. We also applied novel MCMC operators to sample the species networks and gene trees along with other parameters.
The method will be available as package for BEAST2.