No evidence for incipient speciation by selfing in North American Arabidopsis lyrata

doi:10.1111/jeb.13901

	No evidence for incipient speciation by selfing in North American Arabidopsis lyrata
	Gorman, Courtney E.1; Li, Yan 2; Dorken, Marcel E.3; Stift, Marc 1
刊名	JOURNAL OF EVOLUTIONARY BIOLOGY
	2021-07-14
页码	9
关键词	Arabidopsis lyrata mating system post-pollination reproductive isolation post-zygotic isolation selfing
ISSN号	1010-061X
DOI	10.1111/jeb.13901
通讯作者	Gorman, Courtney E.(courtney.gorman@uni-konstanz.de)
英文摘要	Self-fertilization inherently restricts gene flow by reducing the fraction of offspring that can be produced by inter-population matings. Therefore, mating system transitions from outcrossing to selfing could result in reproductive isolation between selfing and outcrossing lineages and provide a starting point for speciation. In newly diverged lineages, for example after a transition to selfing, further reproductive isolation can be caused by a variety of prezygotic and post-zygotic mechanisms that operate before, during and after pollination. In animals, prezygotic barriers tend to evolve faster than post-zygotic ones. This is not necessarily the case for plants, for which the relative importance of post-mating, post-fertilization and early-acting post-zygotic barriers has been investigated far less. To test whether post-pollination isolation exists between populations of North American Arabidopsis lyrata that differ in breeding (self-incompatible versus self-compatible) and mating system (outcrossing versus selfing), we compared patterns of seed set after crosses made within populations, between populations of the same mating system and between populations with different mating systems. We found no evidence for post-pollination isolation between plants from selfing populations (self-compatible, low outcrossing rates) and outcrossing populations (self-incompatible, high outcrossing rates) via either prezygotic or early-acting post-zygotic mechanisms. Together with the results of other studies indicating the absence of reproductive barriers acting before and during pollination, we conclude that the transition to selfing in this study system has not led to the formation of reproductive barriers between selfing and outcrossing populations of North American A. lyrata.
资助项目	Deutsche Forschungsgemeinschaft[388824194]
WOS关键词	REPRODUCTIVE ISOLATION ; MATING SYSTEM ; RELATIVE IMPORTANCE ; EVOLUTION ; INCOMPATIBILITY ; FERTILIZATION ; PLANTS ; COMPATIBILITY ; POPULATIONS ; SIZE
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology ; Genetics & Heredity
语种	英语
出版者	WILEY
WOS记录号	WOS:000674422400001
资助机构	Deutsche Forschungsgemeinschaft
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/163743]
专题	中国科学院地理科学与资源研究所
通讯作者	Gorman, Courtney E.
作者单位	1.Univ Konstanz, Dept Biol, Constance, Germany 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 3.Trent Univ, Dept Biol, Peterborough, ON, Canada
推荐引用方式 GB/T 7714	Gorman, Courtney E.,Li, Yan,Dorken, Marcel E.,et al. No evidence for incipient speciation by selfing in North American Arabidopsis lyrata[J]. JOURNAL OF EVOLUTIONARY BIOLOGY,2021:9.
APA	Gorman, Courtney E.,Li, Yan,Dorken, Marcel E.,&Stift, Marc.(2021).No evidence for incipient speciation by selfing in North American Arabidopsis lyrata.JOURNAL OF EVOLUTIONARY BIOLOGY,9.
MLA	Gorman, Courtney E.,et al."No evidence for incipient speciation by selfing in North American Arabidopsis lyrata".JOURNAL OF EVOLUTIONARY BIOLOGY (2021):9.