Presented By: Ecology and Evolutionary Biology
EEB Tuesday Lunch Seminar - Evidence for widespread genomic inversions without phenotypic breaks in passerine birds
Teresa Pegan, Ecology and Evolutionary Biology Postdoctoral Fellow, Winger Lab
This event is part of Ecology and Evolutionary Biology's weekly lunch series.
Genomic inversions are large structural variants that often play a role in local adaptation, but their underlying prevalence in natural populations is poorly known. I surveyed population-level genomic data from 34 bird species and identified over 130 genomic regions showing evidence of intraspecific inversion polymorphism. These regions are not associated with known phenotypic variation or local adaptation. Some identical regions are polymorphic in multiple related species, suggesting that they are very old polymorphisms maintained by balancing selection or incomplete lineage sorting. I will discuss the value of generating data on empirical patterns of inversion polymorphism for understanding the role that inversions play in the evolution of wild population.
Genomic inversions are large structural variants that often play a role in local adaptation, but their underlying prevalence in natural populations is poorly known. I surveyed population-level genomic data from 34 bird species and identified over 130 genomic regions showing evidence of intraspecific inversion polymorphism. These regions are not associated with known phenotypic variation or local adaptation. Some identical regions are polymorphic in multiple related species, suggesting that they are very old polymorphisms maintained by balancing selection or incomplete lineage sorting. I will discuss the value of generating data on empirical patterns of inversion polymorphism for understanding the role that inversions play in the evolution of wild population.
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