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Domesticated honeybees facilitate interspecific hybridization between two Taraxacum congeners

文献类型：期刊论文

作者Peng, Youhong1; Dong, Yuran4; Xu, Haigen2; Xi, Xinqiang4; Niklas, Karl J.3; Sun, Shucun1,4
刊名JOURNAL OF ECOLOGY
出版日期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
DOI10.1111/1365-2745.12909
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
WOS记录号WOS:000430123800035
出版者WILEY
源URL[http://210.75.237.14/handle/351003/30264]  
专题生物多样性与生态系统服务领域_生态研究
成都生物研究所_生态研究
生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室
生物多样性与生态系统服务领域_生态系统恢复与生物多样性保育四川省重点实验室
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.Nanjing Research Institute of Environmental Sciences of the Ministry of Environmental Protection, Nanjing, China;
3.Cornell Univ, Plant Biol Sect, Sch Integrat Plant Biol, Ithaca, NY 14853 USA
4.Department of Ecology, School of Life Sciences, Nanjing University, 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.

入库方式： OAI收割

来源：成都生物研究所

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