Genome-wide signatures of genetic variation within and between populations - a comparative perspective

摘要: Genome-wide screens of genetic variation can reveal signatures population-specific selection implicated in adaptation and speciation. Yet, unrelated processes such as linked arising a consequence genome architecture generate comparable across taxa. To investigate prevalence phylogenetic stability selection, we took comparative approach utilizing population-level data from 444 re-sequenced genomes three avian clades spanning 50 million years evolution. Levels nucleotide diversity (π),population-scaled recombination rate (ρ), differentiation (FST, PBS) sequence divergence (Dxy) were remarkably similar syntenic genomic regions clades. Elevated local was associated with inferred centromere sub-telomeric regions. Our results support role shaping genome-wide heterogeneity within between The long-term conservation landscapes stable association features make the outcome this evolutionary process part predictable.