Floral nectary morphology and evolution in Pedicularis (Orobanchaceae)

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 中国科学院东亚植物多样性与生物地理学重点实验室

	Floral nectary morphology and evolution in Pedicularis (Orobanchaceae)
	Liu, Min-Lu; Yu, Wen-Bin; Kuss, Patrick; Li, De-Zhu; Wang, Hong
刊名	BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
	2015-08-01
卷号	178 期号:4 页码:592-607
关键词	anatomy ancestral state reconstruction nectary form pollinator behaviour rudimentary structure
英文摘要	Intricate associations between floral morphology and pollinator foraging behaviour are common. In this context, the presence and form of floral nectaries can play a crucial role in driving floral evolution and diversity in flowering plants. However, the reconstruction of the ancestral state of nectary form is often hampered by a lack of anatomical studies and well-resolved phylogenetic trees. Here, we studied 39 differentially pollinated Pedicularis spp., a genus with pronounced interspecific variation in colour, shape and size of the corolla. Anatomical and scanning electron microscopy observations revealed two nectary forms [bulged (N=27) or elongated (N=5)] or the absence of nectaries (N=7). In a phylogenetic context, our data suggest that: (1) the bulged nectary should be the ancestral state; (2) nectaries were independently lost in some beaked species; and (3) elongated nectaries evolved independently in some clades of beakless species. Phylogenetic path analysis showed that nectary presence is indirectly correlated with beak length/pollinator behaviour through an intermediate factor, nectar production. No significant correlation was found between nectary type and nectar production, beak length or pollinator behaviour. Some beaked species had nectary structures, although they did not produce nectar. The nectary in beaked species may be a vestigial structure retained during a recent rapid radiation of Pedicularis, especially in the Himalaya-Hengduan Mountains of south-western China.(c) 2015 The Linnean Society of London, Botanical Journal of the Linnean Society, 2015, 178, 592-607.
类目[WOS]	Plant Sciences
研究领域[WOS]	Plant Sciences
关键词[WOS]	POLLINATION ECOLOGY ; REPRODUCTIVE ISOLATION ; HEMIPARASITIC GENUS ; RHINANTHUS-MINOR ; FLOWERS ; SCROPHULARIACEAE ; BUMBLEBEES ; CHINA ; L. ; ULTRASTRUCTURE
收录类别	SCI
语种	英语
WOS记录号	WOS:000357882200004
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/24990]
专题	昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室
推荐引用方式 GB/T 7714	Liu, Min-Lu,Yu, Wen-Bin,Kuss, Patrick,et al. Floral nectary morphology and evolution in Pedicularis (Orobanchaceae)[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2015,178(4):592-607.
APA	Liu, Min-Lu,Yu, Wen-Bin,Kuss, Patrick,Li, De-Zhu,&Wang, Hong.(2015).Floral nectary morphology and evolution in Pedicularis (Orobanchaceae).BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,178(4),592-607.
MLA	Liu, Min-Lu,et al."Floral nectary morphology and evolution in Pedicularis (Orobanchaceae)".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 178.4(2015):592-607.