Variations in pollinator-mediated selection of floral traits across flowering times

IF 3 2区 环境科学与生态学 Q2 ECOLOGY
Yong-Peng Cha, Jie Zhang, Yin-Mei Ma, Zhaoli Tong, Yun Wu, Lun Luo, Qing‐Jun Li
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引用次数: 0

Abstract

Spatiotemporal variations in plant-pollinator interactions drive floral evolution and shape the diversity of flowers in angiosperms. However, the potential role of plant-pollinator interactions in driving floral differentiation across flowering times within a population has not been documented. In this study, we aimed to quantify the variations in pollinator-mediated selection of floral traits across different flowering times of Primula sikkimensis (an entomophilous plant) in two natural populations. The results demonstrated that plants were shorter and produced fewer flowers with larger sizes in the early flowering time than in the late flowering time. In early flowering time, pollinator types were fewer and visitation frequency was lower than in late flowering time, resulting in lower female fitness. Pollinator-mediated selection of floral traits varied with flowering time, and more floral traits received pollinator-mediated selection during early flowering time. These results highlight that temporal variation in plant-pollinator interactions may have a potential role in driving floral diversification within the population.
不同花期传粉昆虫介导的花性状选择的变化
植物-传粉昆虫相互作用的时空变化驱动了被子植物的花进化并形成了花的多样性。然而,植物-传粉昆虫相互作用在群体内不同开花时间驱动花朵分化的潜在作用尚未得到证明。在这项研究中,我们旨在量化两个自然种群中梅花报春(一种昆虫学植物)在不同开花时间由传粉媒介介导的花性状选择的变化。结果表明,与晚花期相比,早花期植株更短,开出的花更少,大小更大。在开花早期,传粉昆虫类型较少,访问频率低于开花后期,导致雌性适应性较低。授粉者介导的花性状选择随着开花时间的变化而变化,在开花早期,更多的花性状接受授粉者介介导的选择。这些结果强调,植物-传粉昆虫相互作用的时间变化可能在推动种群内的花多样化方面发挥潜在作用。
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来源期刊
Journal of Plant Ecology
Journal of Plant Ecology 生物-植物科学
CiteScore
4.60
自引率
18.50%
发文量
134
审稿时长
3 months
期刊介绍: Journal of Plant Ecology (JPE) serves as an important medium for ecologists to present research findings and discuss challenging issues in the broad field of plants and their interactions with biotic and abiotic environment. The JPE will cover all aspects of plant ecology, including plant ecophysiology, population ecology, community ecology, ecosystem ecology and landscape ecology as well as conservation ecology, evolutionary ecology, and theoretical ecology.
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