The evolution of floral deception in Epipactis veratrifolia (Orchidaceae): from indirect defense to pollination

doi:10.1186/1471-2229-14-63

	The evolution of floral deception in Epipactis veratrifolia (Orchidaceae): from indirect defense to pollination
	Jin, Xiao-Hua; Ren, Zong-Xin ; Xu, Song-Zhi ; Wang, Hong ; Li, De-Zhu ; Li, Zheng-Yu
	2014
发表期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
卷号	14
摘要	Background: It is estimated that floral deception has evolved in at least 7500 species of angiosperms, of which two thirds are orchids. Epipactis veratrifolia (Orchidaceae) is a model system of aphid mimicry as aphidophagous hoverflies lay eggs on false brood sites on their flowers. To understand the evolutionary ecology of floral deception, we investigated the pollination biology of E. veratrifolia across 10 populations in the Eastern Himalayas. We reconstructed the phylogeny of Epipactis and mapped the known pollination systems of previously studied species onto the tree. Results: Some inflorescences of E. veratrifolia were so infested with aphids while they were still in bud that the some larvae of hoverflies developed to the third instar while flower buds opened. This indicated that adult female hoverflies were partly rewarded for oviposition. Although flowers failed to secrete nectar, they mimicked both alarm pheromones and aphid coloring of to attract female hoverflies as their exclusive pollinators. Phylogenetic mapping indicate that pollination by aphidophagous hoverflies is likely an ancestral condition in the genus Epipactis. We suggest that the biological interaction of aphid (prey), orchid (primary producer) and hoverfly (predator) may represent an intermediate stage between mutualism and deception in the evolution of pollination-by-deceit in E. veratrifolia. Conclusions: Our analyses indicate that this intermediate stage may be used as a model system to interpret the origin of oviposition (brood site) mimicry in Epipactis. We propose the hypothesis that some deceptive pollination systems evolved directly from earlier (partly) mutualistic systems that maintained the fidelity of the original pollinator(s) even though rewards (nectar/brood site) were lost.
关键词	Anther cap Aphids Floral mimicry Hoverflies Intermediate stage Pollinator
学科领域	Plant Sciences
DOI	10.1186/1471-2229-14-63
收录类别	SCI
语种	英语
WOS关键词	WASP ; DIVERSIFICATION ; PALUSTRIS ; ECOLOGY ; MIMICRY ; FLOWERS ; NECTAR ; SYSTEM
WOS研究方向	Plant Sciences
WOS记录号	WOS:000335069400001
出版者	BMC
文献子类	Article
出版地	LONDON
资助机构	National Natural Science Foundation of China [31107176] ; National Key Basic Research Program of China [2014CB954100] ; Chinese Academy of Sciences [KJZD-EW-L07]
作者邮箱	orchid@ibcas.ac.cn
作品OA属性	Green Published, gold
引用统计	被引频次：26[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/2S10CLM1/27330
专题	系统与进化植物学国家重点实验室
作者单位	1.[Jin, Xiao-Hua 2.Xu, Song-Zhi 3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 4.[Ren, Zong-Xin 5.Wang, Hong 6.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Div & Biogeog East Asia, Kunming 650201, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Jin, Xiao-Hua,Ren, Zong-Xin,Xu, Song-Zhi,et al. The evolution of floral deception in Epipactis veratrifolia (Orchidaceae): from indirect defense to pollination[J]. BMC PLANT BIOLOGY,2014,14.
APA	Jin, Xiao-Hua,Ren, Zong-Xin,Xu, Song-Zhi,Wang, Hong,Li, De-Zhu,&Li, Zheng-Yu.(2014).The evolution of floral deception in Epipactis veratrifolia (Orchidaceae): from indirect defense to pollination.BMC PLANT BIOLOGY,14.
MLA	Jin, Xiao-Hua,et al."The evolution of floral deception in Epipactis veratrifolia (Orchidaceae): from indirect defense to pollination".BMC PLANT BIOLOGY 14(2014).

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