气候变化领域集成服务门户(CCPortal): Shifts in outcrossing rates and changes to floral traits are associated with the evolution of herbicide resistance in the common morning glory

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DOI	10.1111/ele.12703
	Shifts in outcrossing rates and changes to floral traits are associated with the evolution of herbicide resistance in the common morning glory
	Kuester A.; Fall E.; Chang S.-M.; Baucom R.S.
发表日期	2017
ISSN	1461-023X
EISSN	1461-0248
卷号	20 期号:1
英文摘要	Human-mediated selection can strongly influence the evolutionary response of natural organisms within ecological timescales. But what traits allow for, or even facilitate, adaptation to the strong selection humans impose on natural systems? Using a combination of laboratory and greenhouse studies of 32 natural populations of the common agricultural weed, Ipomoea purpurea, we show that herbicide-resistant populations self-fertilise more than susceptible populations. We likewise show that anther–stigma distance, a floral trait associated with self-fertilisation in this species, exhibits a nonlinear relationship with resistance such that the most and least resistant populations exhibit lower anther–stigma separation compared to populations with moderate levels of resistance. Overall, our results extend the general finding that plant mating can be impacted by human-mediated agents of selection to that of the extreme selection of the agricultural system. This work highlights the influence of human-mediated selection on rapid responses of natural populations that can lead to unexpected long-term evolutionary consequences. © 2016 John Wiley & Sons Ltd/CNRS
英文关键词	Human-mediated selection; mating system; outcrossing rate; resistance
学科领域	Ipomoea purpurea; glycine; glyphosate; herbicide; analogs and derivatives; drug effects; evolution; flower; genetic selection; genetics; herbicide resistance; Ipomoea; physiology; self fertilization; United States; Biological Evolution; Flowers; Glycine; Herbicide Resistance; Herbicides; Ipomoea; Selection, Genetic; Self-Fertilization; United States
语种	英语
scopus关键词	Ipomoea purpurea; glycine; glyphosate; herbicide; analogs and derivatives; drug effects; evolution; flower; genetic selection; genetics; herbicide resistance; Ipomoea; physiology; self fertilization; United States; Biological Evolution; Flowers; Glycine; Herbicide Resistance; Herbicides; Ipomoea; Selection, Genetic; Self-Fertilization; United States
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118449
作者单位	Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, United States; Plant Biology Department, University of Georgia, Athens, GA 30602, United States
推荐引用方式 GB/T 7714	Kuester A.,Fall E.,Chang S.-M.,et al. Shifts in outcrossing rates and changes to floral traits are associated with the evolution of herbicide resistance in the common morning glory[J],2017,20(1).
APA	Kuester A.,Fall E.,Chang S.-M.,&Baucom R.S..(2017).Shifts in outcrossing rates and changes to floral traits are associated with the evolution of herbicide resistance in the common morning glory.Ecology Letters,20(1).
MLA	Kuester A.,et al."Shifts in outcrossing rates and changes to floral traits are associated with the evolution of herbicide resistance in the common morning glory".Ecology Letters 20.1(2017).