气候变化领域集成服务门户(CCPortal): Contradistinctive floral attributes, pollination guilds and their consequence on the outcrossing rate in two elevational morphs of Rhododendron arboreum Sm

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DOI	10.3389/fpls.2024.1355680
	Contradistinctive floral attributes, pollination guilds and their consequence on the outcrossing rate in two elevational morphs of Rhododendron arboreum Sm
	Sorokhaibam, Sachin Singh; Chandra, Atika; Baishya, Ratul; Barik, Saroj Kanta; Goel, Shailendra; Tandon, Rajesh
发表日期	2024
ISSN	1664-462X
起始页码	15
卷号	15
英文摘要	Infraspecific floral trait variations may appear in response to elevational differences in alpine plant species. There is enormous information on the selection of such morphs mediated by biotic and/or abiotic variables. Whether such differences contribute to differences in reproductive strategy and mating outcomes is rarely investigated. We investigated these aspects in two distinct elevational floral morphs (Red and Pink) of Rhododendron arboreum Sm. in Western Himalaya. The red morphs occupy the lower elevations while pink morphs the higher elevations. The two morphs differ in floral traits like phenology, dimension, display, quality of floral rewards, and pollinators that happen to influence interaction with available pollinator pool at each elevation. The pink morph exhibits entomophily, while the red ones show ornithophily. Although experimental pollinations established that both the morphs are self-compatible, selfing results in significantly lower fruit-set than either cross- or open-pollinations. The outcrossing rate in the red morph, as determined by using simple sequence repeat (SSR) markers, was higher (t(m)=0.82) than that in the pink morph (t(m)=0.76), with a tendency of the latter to be shifting towards mixed-mating strategy. However, the extent of biparental inbreeding was comparable among the two morphs. It is inferred that the differences in the mating outcomes among the morphs in the tree species are linked to those emerging from floral traits and the pollination by different functional groups of floral visitors.
英文关键词	floral trait; floral evolution; mating system evolution; pollination ecology; reproductive biology; SSR; tree
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001199876000001
来源期刊	FRONTIERS IN PLANT SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300674
作者单位	University of Delhi; University of Delhi; North Eastern Hill University
推荐引用方式 GB/T 7714	Sorokhaibam, Sachin Singh,Chandra, Atika,Baishya, Ratul,et al. Contradistinctive floral attributes, pollination guilds and their consequence on the outcrossing rate in two elevational morphs of Rhododendron arboreum Sm[J],2024,15.
APA	Sorokhaibam, Sachin Singh,Chandra, Atika,Baishya, Ratul,Barik, Saroj Kanta,Goel, Shailendra,&Tandon, Rajesh.(2024).Contradistinctive floral attributes, pollination guilds and their consequence on the outcrossing rate in two elevational morphs of Rhododendron arboreum Sm.FRONTIERS IN PLANT SCIENCE,15.
MLA	Sorokhaibam, Sachin Singh,et al."Contradistinctive floral attributes, pollination guilds and their consequence on the outcrossing rate in two elevational morphs of Rhododendron arboreum Sm".FRONTIERS IN PLANT SCIENCE 15(2024).