Domesticated honeybees facilitate interspecific hybridization between two Taraxacum congeners

doi:10.1111/1365-2745.12909

	Domesticated honeybees facilitate interspecific hybridization between two Taraxacum congeners
	Peng, Youhong 1; Dong, Yuran 2; Xu, Haigen 4; Xi, Xinqiang 2; Niklas, Karl J.3; Sun, Shucun 1,2
刊名	JOURNAL OF ECOLOGY
	2018-05-01
卷号	106 期号:3 页码:1204-1216
关键词	apiculture artificial pollination domesticated honeybees molecular markers natural hybridization Taraxacum congeners
ISSN号	0022-0477
DOI	10.1111/1365-2745.12909
产权排序	1
文献子类	Article
英文摘要	Interspecific hybridization is common in plants under natural conditions, but the ecological mechanisms underlying when and how it happens have not fully been understood.Taraxacum calanthodium and Taraxacum lugubre are two herbaceous annals co-occurring in alpine meadows of the eastern Tibetan Plateau that share the same pollinators including domestic honeybees during their overlapping flowering times. Because honeybees tend to visit flowers less discriminatively when bee densities are high, we hypothesized that intense apiculture would facilitate hybridization between these two congeneric species. We tested this hypothesis by examining the frequencies of the two parent species occurrence and the hybrid (based on morphological and genetic differences) along three transects radiating from well-established apiaries. Experiments show that both T.calanthodium and T.lugubre produce seeds sexually and asexually, and that they can hybridize via pollen transfer. Bee visitation rates and the frequency of the hybrid were significantly higher in the sites nearest to apiaries compared to distant site along each of the three transects. The hybrids were consistently genetically intermediate between the two species, as indicated by simple sequence repeat-based analyses.Synthesis. These data indicate that domestic honeybees foster interspecific hybridization between the two Taraxacum species and that anthropogenic effects on pollen vectors can significantly influence species hybridization in nature. We suggest that more effort should be made to quantify the effects of environmental change on pollinators and their effects on species evolution.
学科主题	Environment ; Ecology
URL标识	查看原文
WOS关键词	NATURAL HYBRIDIZATION ; POPULATION-STRUCTURE ; HYBRID SPECIATION ; SECTION MONGOLICA ; INTROGRESSION ; POLLINATORS ; EVOLUTION ; INDIVIDUALS ; SUNFLOWERS ; RUDERALIA
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
语种	英语
出版者	WILEY
WOS记录号	WOS:000430123800035
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/30264]
专题	成都生物研究所_生态研究
作者单位	1.Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization of Chinese Academy of Sciences, and Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China; 2.Department of Ecology, School of Life Sciences, Nanjing University, Nanjing, China; 3.Cornell Univ, Plant Biol Sect, Sch Integrat Plant Biol, Ithaca, NY 14853 USA 4.Nanjing Research Institute of Environmental Sciences of the Ministry of Environmental Protection, Nanjing, China;
推荐引用方式 GB/T 7714	Peng, Youhong,Dong, Yuran,Xu, Haigen,et al. Domesticated honeybees facilitate interspecific hybridization between two Taraxacum congeners[J]. JOURNAL OF ECOLOGY,2018,106(3):1204-1216.
APA	Peng, Youhong,Dong, Yuran,Xu, Haigen,Xi, Xinqiang,Niklas, Karl J.,&Sun, Shucun.(2018).Domesticated honeybees facilitate interspecific hybridization between two Taraxacum congeners.JOURNAL OF ECOLOGY,106(3),1204-1216.
MLA	Peng, Youhong,et al."Domesticated honeybees facilitate interspecific hybridization between two Taraxacum congeners".JOURNAL OF ECOLOGY 106.3(2018):1204-1216.