干旱区生态环境知识资源中心(Arid): Incipient speciation in Oncocyclus irises: Eco-geographic isolation and genetic divergence with no reproductive isolation?

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DOI	10.1016/j.flora.2020.151746
	Incipient speciation in Oncocyclus irises: Eco-geographic isolation and genetic divergence with no reproductive isolation?
	Volis, Sergei; Zhang, Yong-Hong; Dorman, Michael; Abbott, Richard J.
通讯作者	Volis, S (corresponding author), Katif Ctr Res & Dev Coastal Deserts, Newe Deqalim, Israel. ; Zhang, YH (corresponding author), YunnanNormal Univ, Life Sci Dept, Kunming 650204, Yunnan, Peoples R China.
来源期刊	FLORA
ISSN	0367-2530
EISSN	1618-0585
出版年	2021
卷号	275
英文摘要	The establishment of reproductive isolation is considered to be an ultimate result of ecological speciation, but empirical evidence for the latter is limited. We hypothesized that in the absence of inter-specific gene flow and with subtle environmental differences, local adaptation will not require trade-offs in performance across environments and therefore will not result in reproductive isolation. We tested this hypothesis on four iris species, Iris atrofusca, I. atropurpurea, I. petrana and I. mariae, which have non-overlapping geographical distributions, grow naturally in different environmental conditions with respect to amount of rainfall and soil type, and possess suites of diagnostic traits that previously were assumed to result from local selection. We analyzed their genetic (AFLP) and quantitative trait divergence (by means of a common garden experiment), conducted a habitat suitability analysis, examined experimentally the effects of soil type and water availability on plant performance, and tested for postzygotic reproductive isolation using a crossing experiment. Our results supported the hypothesis that eco-geographical isolation does not necessarily lead to local adaptation or to postzygotic reproductive isolation when environmental differences are subtle. Thus, we obtained some evidence that the desert I. atrofusca was reproductively isolated from coastal I. atropurpurea, but not from desert I. mariae, although genetically the first two are more similar to each other than I. atrofusca is to I. mariae.
英文关键词	Speciation natural selection reproductive isolation Oncocyclus
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000618295600002
WOS类目	Plant Sciences ; Ecology
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350220
作者单位	[Volis, Sergei] Katif Ctr Res & Dev Coastal Deserts, Newe Deqalim, Israel; [Zhang, Yong-Hong] YunnanNormal Univ, Life Sci Dept, Kunming 650204, Yunnan, Peoples R China; [Dorman, Michael] Ben Gurion Univ Negev, Geog Dept, IL-84105 Beer Sheva, Israel; [Abbott, Richard J.] Univ St Andrews, Sch Biol, Harold Mitchell Bldg, St Andrews KY16 9TH, Fife, Scotland
推荐引用方式 GB/T 7714	Volis, Sergei,Zhang, Yong-Hong,Dorman, Michael,et al. Incipient speciation in Oncocyclus irises: Eco-geographic isolation and genetic divergence with no reproductive isolation?[J]. Ben-Gurion University of the Negev,2021,275.
APA	Volis, Sergei,Zhang, Yong-Hong,Dorman, Michael,&Abbott, Richard J..(2021).Incipient speciation in Oncocyclus irises: Eco-geographic isolation and genetic divergence with no reproductive isolation?.FLORA,275.
MLA	Volis, Sergei,et al."Incipient speciation in Oncocyclus irises: Eco-geographic isolation and genetic divergence with no reproductive isolation?".FLORA 275(2021).