Species Persistence with Hybridization in Toad-Headed Lizards Driven by Divergent Selection and Low Recombination

	Species Persistence with Hybridization in Toad-Headed Lizards Driven by Divergent Selection and Low Recombination
	Gao, W; Yu, CX; Zhou, WW; Zhang, BL; Chambers, EA; Dahn, HA; Jin, JQ; Murphy, RW; Zhang, YP; Che, J
	2022
发表期刊	MOLECULAR BIOLOGY AND EVOLUTION
ISSN	0737-4038
卷号	39 期号:4
摘要	Speciation plays a central role in evolutionary studies, and particularly how reproductive isolation (RI) evolves. The origins and persistence of RI are distinct processes that require separate evaluations. Treating them separately clarifies the drivers of speciation and then it is possible to link the processes to understand large-scale patterns of diversity. Recent genomic studies have focused predominantly on how species or RI originate. However, we know little about how species persist in face of gene flow. Here, we evaluate a contact zone of two closely related toad-headed lizards (Phrynocephalus) using a chromosome-level genome assembly and population genomics. To some extent, recent asymmetric introgression from Phrynocephalus putjatai to P. vlangalii reduces their genomic differences. However, their highly divergent regions (HDRs) have heterogeneous distributions across the genomes. Functional gene annotation indicates that many genes within HDRs are involved in reproduction and RI. Compared with allopatric populations, contact areas exhibit recent divergent selection on the HDRs and a lower population recombination rate. Taken together, this implies that divergent selection and low genetic recombination help maintain RI. This study provides insights into the genomic mechanisms that drive RI and two species persistence in the face of gene flow during the late stage of speciation.
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/152453/13180
专题	科研部门_两栖爬行类多样性与进化（车静）
推荐引用方式 GB/T 7714	Gao, W,Yu, CX,Zhou, WW,et al. Species Persistence with Hybridization in Toad-Headed Lizards Driven by Divergent Selection and Low Recombination[J]. MOLECULAR BIOLOGY AND EVOLUTION,2022,39(4).
APA	Gao, W.,Yu, CX.,Zhou, WW.,Zhang, BL.,Chambers, EA.,...&Che, J.(2022).Species Persistence with Hybridization in Toad-Headed Lizards Driven by Divergent Selection and Low Recombination.MOLECULAR BIOLOGY AND EVOLUTION,39(4).
MLA	Gao, W,et al."Species Persistence with Hybridization in Toad-Headed Lizards Driven by Divergent Selection and Low Recombination".MOLECULAR BIOLOGY AND EVOLUTION 39.4(2022).

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