Repeated behavioral evolution is associated with targeted convergence of gene expression in cavity-nesting songbirds
Sara E Lipshutz,
Mark S Hibbins,
Alexandra B Bentz
et al.
Abstract:Uncovering the genomic bases of phenotypic adaptation is a major goal in biology, but this has been hard to achieve for complex behavioral traits. Here, we leverage the repeated, independent evolution of obligate cavity-nesting in birds to test the hypothesis that the shared pressure to compete for a limited breeding resource drives convergent behavioral evolution via convergent gene regulatory changes in the brain. Using behavioral assays in the field, hormonal measures of free-living subjects, and transcript… Show more
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