DOI: 10.1111/ele.12703
Scopus记录号: 2-s2.0-85006355579
论文题名: Shifts in outcrossing rates and changes to floral traits are associated with the evolution of herbicide resistance in the common morning glory
作者: Kuester A. ; Fall E. ; Chang S.-M. ; Baucom R.S.
刊名: Ecology Letters
ISSN: 1461023X
EISSN: 1461-0248
出版年: 2017
卷: 20, 期: 1 起始页码: 41
结束页码: 49
语种: 英语
英文关键词: Human-mediated selection
; mating system
; outcrossing rate
; resistance
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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/107681
Appears in Collections: 气候减缓与适应
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作者单位: Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, United States; Plant Biology Department, University of Georgia, Athens, GA, United States
Recommended Citation:
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]. Ecology Letters,2017-01-01,20(1)