Ginger and the beetle: Evidence of primitive pollination system in a Himalayan endemic alpine ginger (Roscoea alpina, Zingiberaceae)

CORC > 西双版纳热带植物园 > 中国科学院西双版纳热带植物园 > 植物进化生态研究组

	Ginger and the beetle: Evidence of primitive pollination system in a Himalayan endemic alpine ginger (Roscoea alpina, Zingiberaceae)
	Paudel, Babu Ram; Shrestha, Mani; Dyer, Adrian G.; Li, Qing-Jun
刊名	PLOS ONE
	2017
卷号	12 期号:7 页码:-
英文摘要	The Himalayan endemic alpine genus Roscoea, like other members of ginger family, exhibits the combination of floral traits that would fit pollination by long distant foragers such as bees, birds or flies. We studied the pollination biology of Roscoea alpina, observed potential floral visitors and determined their foraging behaviour, visitation frequency and pollination efficiency, to seek evidence in support of the pollination syndrome hypothesis. We also measured the floral spectra of R. alpina flowers to evaluate if signals fit with the currently known framework for observed floral visitors. We found that R. alpina have autonomous selfing and pollinator-mediated crossing, but lack apomixis. We observed that a beetle (Mylabris sp.), and a moth (Macroglossum nycteris) visit the flowers of R. alpina for pollen and nectar feeding respectively. Our field observations, the stigmatic pollen count and fruit set data indicated that the visit by the beetle was legitimate, while that of the moth was illegitimate. Emasculated flowers visited by beetles set as many fruits and seeds/fruit as autoselfed and naturally pollinated flowers, while emasculated flowers excluded from beetle visits did not set fruit and seed; indicating that a single visit of a beetle to the flowers of R. alpina can facilitate pollination. We found that flower spectral signal of R. alpina does not fit typical spectra previously reported for beetle or bee-visited flowers. Our results suggest that, to ensure reproductive success in alpine habitat, R. alpina has evolved autonomous selfing as a predominant mode of reproduction, while beetle pollination would promote genetic diversity of this plant species. The visitation of beetles to the flowers of R. alpina, despite floral signal mismatch with the classically associated beetle vision, suggests that a different visual processing may operate in this plant-pollinator interaction at high altitudes.
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语种	英语
公开日期	2017-09-29
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/10610]
专题	西双版纳热带植物园_植物进化生态研究组
推荐引用方式 GB/T 7714	Paudel, Babu Ram,Shrestha, Mani,Dyer, Adrian G.,et al. Ginger and the beetle: Evidence of primitive pollination system in a Himalayan endemic alpine ginger (Roscoea alpina, Zingiberaceae)[J]. PLOS ONE,2017,12(7):-.
APA	Paudel, Babu Ram,Shrestha, Mani,Dyer, Adrian G.,&Li, Qing-Jun.(2017).Ginger and the beetle: Evidence of primitive pollination system in a Himalayan endemic alpine ginger (Roscoea alpina, Zingiberaceae).PLOS ONE,12(7),-.
MLA	Paudel, Babu Ram,et al."Ginger and the beetle: Evidence of primitive pollination system in a Himalayan endemic alpine ginger (Roscoea alpina, Zingiberaceae)".PLOS ONE 12.7(2017):-.