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Scott Edwards (Harvard) Part 1: Gene trees and phylogeography

http://www.ibioseminars.org In his first lecture, Dr. Edwards explains that studying gene alleles within different populations or species allows the construction of gene trees showing how the groups are related. The gene trees can be used to link genetic variation to geographic distribution of populations; the study of phylogeography. In Part 2, Edwards expands his discussion of phylogeography with a focus on Australian songbirds. Edwards changes gears in Part 3, and describes studies from his lab investigating the recent evolution of resistance to the parasite Mycoplasma in House Finches and the co-evolution of genetic changes in Mycoplasma.
Length: 54:51

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