Community-wide patterns in pollen and ovule production, their ratio (P/O), and other floral traits along an elevation gradient in southwestern China

doi:10.1186/s12870-023-04433-2

KIB OpenIR

	Community-wide patterns in pollen and ovule production, their ratio (P/O), and other floral traits along an elevation gradient in southwestern China
	Nepal,Shristhi; Trunschke,Judith; Ren,Zong-Xin; Burgess,Kevin S.; Wang,Hong
	2023
发表期刊	BMC PLANT BIOLOGY
卷号	23 期号:1 页码:425
摘要	BackgroundAs the male and female gametophytes of flowering plants, pollen and ovules largely determine the upper and lower boundaries of plant reproductive success. It is commonly predicted that pollen and ovule number per flower should increase, and pollen-ovule ratio (P/O) per flower should decrease with increasing elevation in response to a more stochastic pollination environment. Here, we aimed to determine the response of pollen number, ovule number, and P/O to other floral traits and elevation gradients for 84 insect-pollinated herbaceous flowering plant species in five sub-alpine and alpine communities (2709 to 3896 m a.s.l.) on Yulong Snow Mountain, southwestern China.ResultsSix floral traits, including P/O, floral display area, flower number, tube depth, flower shape, and pollen presentation, were highly correlated with pollen and ovule number per flower. With increasing elevation, pollen number and P/O per flower increased marginally and significantly, respectively; ovule number per individual, flower number per individual, stigma stamen separation, and inflorescence height decreased significantly. However, ovule number per flower and other floral traits (i.e., floral display area, tube depth, stigma height, stamen height, and pollen and P/O per individual) did not change with elevation. We detected significant phylogenetic signals for pollen number, ovule number, and P/O, suggesting that these traits may be highly conserved and with limited response to changing environmental conditions.ConclusionsResults revealed patterns of plant reproductive character evolution along elevation gradients and the potential factors governing their spatial variation in high-elevation environments. Plant species at high elevations are more likely adapted to cross-pollination, indicated by increased P/O per flower at high elevations on Yulong Mountain. Combined effects of phylogenetic history and plant-pollinator interactions should determine plant trait evolution.
关键词	Alpine Floral traits Ovule number Phylogeny Pollen number Pollen-ovule ratio (P/O) PHYLOGENETIC SIGNAL BREEDING SYSTEM ALTITUDINAL GRADIENT WIND POLLINATION MATING SYSTEM FLOWER SIZE LIFE FORM EVOLUTION PLANT NUMBER
DOI	10.1186/s12870-023-04433-2
WOS记录号	WOS:001095444300003
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/74948
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Nepal,Shristhi,Trunschke,Judith,Ren,Zong-Xin,et al. Community-wide patterns in pollen and ovule production, their ratio (P/O), and other floral traits along an elevation gradient in southwestern China[J]. BMC PLANT BIOLOGY,2023,23(1):425.
APA	Nepal,Shristhi,Trunschke,Judith,Ren,Zong-Xin,Burgess,Kevin S.,&Wang,Hong.(2023).Community-wide patterns in pollen and ovule production, their ratio (P/O), and other floral traits along an elevation gradient in southwestern China.BMC PLANT BIOLOGY,23(1),425.
MLA	Nepal,Shristhi,et al."Community-wide patterns in pollen and ovule production, their ratio (P/O), and other floral traits along an elevation gradient in southwestern China".BMC PLANT BIOLOGY 23.1(2023):425.

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