干旱区生态环境知识资源中心(Arid): Multigenerational backcrossing and introgression between two woodrat species at an abrupt ecological transition

Arid

DOI	10.1111/mec.16056
	Multigenerational backcrossing and introgression between two woodrat species at an abrupt ecological transition
	Jahner, Joshua P.; Parchman, Thomas L.; Matocq, Marjorie D.
通讯作者	Jahner, JP (corresponding author), Univ Nevada, Dept Biol, Reno, NV 89557 USA. ; Jahner, JP (corresponding author), Univ Wyoming, Dept Bot, Laramie, WY 82071 USA.
来源期刊	MOLECULAR ECOLOGY
ISSN	0962-1083
EISSN	1365-294X
出版年	2021
卷号	30 期号:17 页码:4245-4258
英文摘要	When organisms experience secondary contact after allopatric divergence, genomic regions can introgress differentially depending on their relationships with adaptation, reproductive isolation, recombination, and drift. Analyses of genome-wide patterns of divergence and introgression could provide insight into the outcomes of hybridization and the potential relationship between allopatric divergence and reproductive isolation. Here, we generate population genetic data (26,262 SNPs; 353 individuals) using a reduced-representation sequencing approach to quantify patterns of ancestry, differentiation, and introgression between a pair of ecologically distinct mammals-the desert woodrat (N. lepida) and Bryant's woodrat (N. bryanti)-that hybridize at a sharp ecotone in southern California. Individual ancestry estimates confirmed that hybrids were rare in this bimodal hybrid zone, and entirely consisted of a few F-1 individuals and a broad range of multigenerational backcrosses. Genomic cline analyses indicated more than half of loci had elevated introgression from one genomic background into the other. However, introgression was not associated with relative or absolute measures of divergence, and loci with extreme values for both were not typically found near detoxification enzymes previously implicated in dietary specialization for woodrats. The decoupling of differentiation and introgression suggests that processes other than adaptation, such as drift, may underlie the extreme clines at this contact zone.
英文关键词	bimodal hybrid zone ecotone genomic clines genotyping-by-sequencing hybridization Neotoma
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000677855900001
WOS关键词	HYBRID ZONE ; REPRODUCTIVE ISOLATION ; POPULATION-STRUCTURE ; GENOMIC LANDSCAPE ; BAYESIAN-ESTIMATION ; GENETIC DIVERSITY ; LOCAL ADAPTATION ; READ ALIGNMENT ; BREAKING RAD ; SELECTION
WOS类目	Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364188
作者单位	[Jahner, Joshua P.; Parchman, Thomas L.] Univ Nevada, Dept Biol, Reno, NV 89557 USA; [Jahner, Joshua P.] Univ Wyoming, Dept Bot, Laramie, WY 82071 USA; [Parchman, Thomas L.; Matocq, Marjorie D.] Univ Nevada, Program Ecol Evolut & Conservat Biol, Reno, NV 89557 USA; [Matocq, Marjorie D.] Univ Nevada, Dept Nat Resources & Environm Sci, Reno, NV 89557 USA
推荐引用方式 GB/T 7714	Jahner, Joshua P.,Parchman, Thomas L.,Matocq, Marjorie D.. Multigenerational backcrossing and introgression between two woodrat species at an abrupt ecological transition[J],2021,30(17):4245-4258.
APA	Jahner, Joshua P.,Parchman, Thomas L.,&Matocq, Marjorie D..(2021).Multigenerational backcrossing and introgression between two woodrat species at an abrupt ecological transition.MOLECULAR ECOLOGY,30(17),4245-4258.
MLA	Jahner, Joshua P.,et al."Multigenerational backcrossing and introgression between two woodrat species at an abrupt ecological transition".MOLECULAR ECOLOGY 30.17(2021):4245-4258.