Floral nectary, nectar production dynamics, and floral reproductive isolation among closely related species of Pedicularis

doi:10.1111/jipb.12374

	Floral nectary, nectar production dynamics, and floral reproductive isolation among closely related species of Pedicularis
	Liu, Ya-Nan ; Li, Yan 1; Yang, Fu-Sheng ; Wang, Xiao-Quan
	2016
发表期刊	JOURNAL OF INTEGRATIVE PLANT BIOLOGY
ISSN	1672-9072
卷号	58 期号:2 页码:178-187
摘要	Floral nectar is thought to be one of the most important rewards that attract pollinators in Pedicularis; however, few studies have examined variation of nectary structure and/or nectar secretion in the genus, particularly among closely related species. Here we investigated nectary morphology, nectar quality, and nectar production dynamics in flowers of Pedicularis section Cyathophora. We found a conical floral nectary at the base of the ovary in species of the rex-thamnophila clade. Stomata were found on the surface of the nectary, and copious starch grains were detected in the nectary tissues. In contrast, a semi-annular nectary was found in flowers of the species of the superba clade. Only a few starch grains were observed in tissues of the semi-annular nectary, and the nectar sugar concentration in these flowers was much lower than that in the flowers of the rex-thamnophila clade. Our results indicate that the floral nectary has experienced considerable morphological, structural, and functional differentiation among closely related species of Pedicularis. This could have affected nectar production, leading to a shift of the pollination mode. Our results also imply that variation of the nectary morphology and nectar production may have played an important role in the speciation of sect. Cyathophora.
关键词	Pedicularis nectary nectar pollination reproductive isolation speciation section Cyathophora
学科领域	Biochemistry & Molecular Biology ; Plant Sciences
DOI	10.1111/jipb.12374
收录类别	SCI
语种	英语
WOS关键词	POLLINATOR SHIFTS ; EVOLUTION ; OROBANCHACEAE ; DIVERSITY ; ECOLOGY ; SCROPHULARIACEAE ; DIVERSIFICATION ; RHINANTHUS ; MORPHOLOGY ; SPECIATION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000368992100007
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1744-7909
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31330008, 31160047] ; Chinese Academy of SciencesChinese Academy of Sciences [KJZD-EW-L07] ; Science and Technology Basic Work [2013FY112100]
作者邮箱	yang_fsh@ibcas.ac.cn ; xiaoq_wang@ibcas.ac.cn
引用统计	被引频次：11[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/2S10CLM1/25067
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Yunnan Acad Agr Sci, Inst Alpine Econ Plant, Lijiang 674100, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Liu, Ya-Nan,Li, Yan,Yang, Fu-Sheng,et al. Floral nectary, nectar production dynamics, and floral reproductive isolation among closely related species of Pedicularis[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2016,58(2):178-187.
APA	Liu, Ya-Nan,Li, Yan,Yang, Fu-Sheng,&Wang, Xiao-Quan.(2016).Floral nectary, nectar production dynamics, and floral reproductive isolation among closely related species of Pedicularis.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,58(2),178-187.
MLA	Liu, Ya-Nan,et al."Floral nectary, nectar production dynamics, and floral reproductive isolation among closely related species of Pedicularis".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 58.2(2016):178-187.

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