Neo-sex chromosome evolution shapes sex-dependent asymmetrical introgression barrier-Reference-Cited by-同舟云学术

Neo-sex chromosome evolution shapes sex-dependent asymmetrical introgression barrier

Published:2022-05-05 Issue:19 Volume:119 Page:
ISSN:0027-8424
Container-title:Proceedings of the National Academy of Sciences
language:en
Short-container-title:Proc. Natl. Acad. Sci. U.S.A.

Author:

Wang Silu¹,Nalley Matthew J.¹,Chatla Kamalakar¹,Aldaimalani Reema¹,MacPherson Ailene²^ORCID,Wei Kevin H.-C.¹^ORCID,Corbett-Detig Russell B.³^ORCID,Mai Dat¹,Bachtrog Doris¹^ORCID

Affiliation:

1. Integrative Biology, University of California, Berkeley, CA 94720

2. Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3B2, Canada

3. Biomolecular Engineering and Genomics Institute, University of California, Santa Cruz, CA 95060

Abstract

Significance It is increasingly recognized that sex chromosomes are not only the battlegrounds between sexes but also the Great Walls fencing off introgression between diverging lineages. Here we dissect the multifaceted roles of sex chromosomes using experimental evolution, whole-genome resequencing, and theoretical modeling, taking advantage of hybrid populations between a Drosophila sister species pair in the early stage of speciation that have different sex chromosome systems. Our work sheds light onto the complex roles of neo-sex chromosome evolution in creating a sex-dependent asymmetrical introgression barrier at a species boundary, and we show how diverse population genetic forces act in concert to explain observed patterns of introgression across the genome.

Publisher

Proceedings of the National Academy of Sciences

Subject

Multidisciplinary

Link

https://pnas.org/doi/pdf/10.1073/pnas.2119382119

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