Admixture of evolutionary rates across a butterfly hybrid zone

	Admixture of evolutionary rates across a butterfly hybrid zone
	Xiong, TZ; Li, XY; Yago, M; Mallet, J
	2022
发表期刊	ELIFE
ISSN	2050-084X
卷号	11
摘要	Hybridization is a major evolutionary force that can erode genetic differentiation between species, whereas reproductive isolation maintains such differentiation. In studying a hybrid zone between the swallowtail butterflies Papilio syfanius and Papilio maackii (Lepidoptera: Papilionidae), we made the unexpected discovery that genomic substitution rates are unequal between the parental species. This phenomenon creates a novel process in hybridization, where genomic regions most affected by gene flow evolve at similar rates between species, while genomic regions with strong reproductive isolation evolve at species-specific rates. Thus, hybridization mixes evolutionary rates in a way similar to its effect on genetic ancestry. Using coalescent theory, we show that the rate-mixing process provides distinct information about levels of gene flow across different parts of genomes, and the degree of rate-mixing can be predicted quantitatively from relative sequence divergence (FST) between the hybridizing species at equilibrium. Overall, we demonstrate that reproductive isolation maintains not only genomic differentiation, but also the rate at which differentiation accumulates. Thus, asymmetric rates of evolution provide an additional signature of loci involved in reproductive isolation.
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/13778
专题	科研部门_遗传多样性基因组学研究组（张国捷）
推荐引用方式 GB/T 7714	Xiong, TZ,Li, XY,Yago, M,et al. Admixture of evolutionary rates across a butterfly hybrid zone[J]. ELIFE,2022,11.
APA	Xiong, TZ,Li, XY,Yago, M,&Mallet, J.(2022).Admixture of evolutionary rates across a butterfly hybrid zone.ELIFE,11.
MLA	Xiong, TZ,et al."Admixture of evolutionary rates across a butterfly hybrid zone".ELIFE 11(2022).

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
2023040719.pdf（6274KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	请求全文