TY - JOUR T1 - Comparing rates of introgression in parasitic feather lice with differing dispersal capabilities JF - bioRxiv DO - 10.1101/527226 SP - 527226 AU - Jorge Doña AU - Andrew D. Sweet AU - Kevin P. Johnson Y1 - 2020/01/01 UR - http://biorxiv.org/content/early/2020/03/31/527226.abstract N2 - Organisms vary in their dispersal abilities, and these differences can have important biological consequences, such as impacting the likelihood of hybridization events. However, there is still much to learn about the factors influencing hybridization, and specifically how dispersal ability affects the opportunities for hybridization. Here, using the ecological replicate system of dove wing and body lice (Insecta: Phthiraptera), we show that species with higher dispersal abilities exhibited increased genomic signatures of introgression. Specifically, we found a higher proportion of introgressed genomic reads and more reticulated phylogenetic networks in wing lice, the louse group with higher dispersal abilities. Our results are consistent with the hypothesis that differences in dispersal ability might drive the extent of introgression through hybridization. Overall, the results from this study represent an important step towards understanding the factors driving hybridization, and have major implications for coevolutionary biology. ER -