Phylo-comparative analyses from genome data reveal the dual role of drift and selection in reproductive character displacement

摘要: Abstract When incipient species meet in secondary contact, natural selection can rapidly reduce costly reproductive interactions by directly targeting traits. This process, called character displacement (RCD), leaves a characteristic pattern of geographic variation where divergence traits between is greater sympatry than allopatry. However, because other forces also cause similar patterns, care must be given separating from process. Here we show how the phylo-comparative method together with genomic data used to evaluate evolutionary processes at population level closely related species. Using this framework, test role RCD speciation two cricket endemic Anatolian mountains quantify patterns displacement, rates evolution and adaptive divergence. Our results differing for vs non-reproductive characters strong asymmetric We demonstrate diversification rapid towards multiple optima under dual influence drift selection. These present first solid evidence mountains, provide insight regarding magnitude necessary lead demonstrates utility methods quantifying parameters level.