High gene flow maintains genetic diversity following selection for high EPSPS copy number in the weed kochia (Amaranthaceae)

doi:10.1038/s41598-020-75345-6

	High gene flow maintains genetic diversity following selection for high EPSPS copy number in the weed kochia (Amaranthaceae)
	Martin, Sara L.; Benedict, Leshawn ; Wei, Wei 1; Sauder, Connie A.; Beckie, Hugh J.; Hall, Linda M.
	2020
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	10 期号:1
摘要	Kochia, a major weed species, has evolved resistance to four herbicide modes of action. Herbicide resistance appears to spread quickly, which could result in diminished standing genetic variation, reducing the ability of populations to adapt further. Here we used double digest restriction enzyme associated sequencing to determine the level of gene flow among kochia populations and whether selection for glyphosate resistance reduces genetic variation. Canadian Prairie populations show little to no genetic differentiation (F-ST = 0.01) and no correlation between genetic and geographic distance (r(2) = - 0.02 p = 0.56), indicating high gene flow and no population structure. There is some evidence that kochia populations are genetically depauperate compared to other weed species, but genetic diversity did not differ between glyphosate susceptible and resistant populations or individuals. The inbreeding coefficients suggest there are 23% fewer heterozygotes in these populations than expected with random mating, and no variation was found within the chloroplast. These results indicate that any alleles for herbicide resistance can be expected to spread quickly through kochia populations, but there is little evidence this spread will reduce the species' genetic variation or limit the species' ability to respond to further selection pressure.
学科领域	Multidisciplinary Sciences
DOI	10.1038/s41598-020-75345-6
收录类别	SCI
语种	英语
WOS关键词	SCOPARIA L. SCHRAD. ; CONFERS GLYPHOSATE RESISTANCE ; HERBICIDE RESISTANCE ; R-PACKAGE ; POPULATION-GENETICS ; ADAPTIVE EVOLUTION ; FITNESS COST ; ADAPTATION ; HISTORY ; AMPLIFICATION
WOS研究方向	Science & Technology - Other Topics
WOS记录号	WOS:000589618700036
出版者	NATURE RESEARCH
文献子类	Article
出版地	BERLIN
资助机构	Agriculture and Agri-Food CanadaAgriculture & Agri Food Canada ; Alberta Crop Industry Development Fund
作者邮箱	Sara.Martin@canada.ca
作品OA属性	gold, Green Published
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/21521
专题	植被与环境变化国家重点实验室
作者单位	1.[Martin, Sara L.; Benedict, Leshawn; Sauder, Connie A.] Agr & Agri Food Canada, Ottawa Res & Dev Ctr, 960 Carling Ave, Ottawa, ON, Canada 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 3.Beckie, Hugh J.] Univ Western Australia, Sch Agr & Environm, Australian Herbicide Resistance Initiat, Perth, WA, Australia 4.Hall, Linda M.] Univ Alberta, Agr Food & Nutr Sci, Edmonton, AB, Canada
推荐引用方式 GB/T 7714	Martin, Sara L.,Benedict, Leshawn,Wei, Wei,et al. High gene flow maintains genetic diversity following selection for high EPSPS copy number in the weed kochia (Amaranthaceae)[J]. SCIENTIFIC REPORTS,2020,10(1).
APA	Martin, Sara L.,Benedict, Leshawn,Wei, Wei,Sauder, Connie A.,Beckie, Hugh J.,&Hall, Linda M..(2020).High gene flow maintains genetic diversity following selection for high EPSPS copy number in the weed kochia (Amaranthaceae).SCIENTIFIC REPORTS,10(1).
MLA	Martin, Sara L.,et al."High gene flow maintains genetic diversity following selection for high EPSPS copy number in the weed kochia (Amaranthaceae)".SCIENTIFIC REPORTS 10.1(2020).

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