Sex-speci fi c facilitation and reproduction of the gynodioecious cushion plant Arenaria polytrichoides on the Himalaya-Hengduan mountains, SW China

doi:10.1016/j.pld.2023.07.002

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	Sex-speci fi c facilitation and reproduction of the gynodioecious cushion plant Arenaria polytrichoides on the Himalaya-Hengduan mountains, SW China
	Chen, Xufang; Zhang, Yazhou; Qian, Lishen; Zhou, Renyu; Sun, Hang; Chen, Jianguo
	2024
发表期刊	PLANT DIVERSITY
ISSN	2096-2703
卷号	46 期号:2 页码:247-255
摘要	When benefiting other beneficiaries, cushion plants may reciprocally receive feedback effects. The feedback effects on different sex morphs, however, remains unclear. In this study, taking the gynodioecious Arenaria polytrichiodes as a model species, we aimed to assess the sex-specific facilitation intensity of cushion plant by measuring the beneficiary cover ratio, and to assess the potential costs in cushion reproductive functions by measuring the fiower and fruit cover ratios. The total beneficiary cover ratio was similar between females and hermaphrodites. Females produced much less fiowers but more fruits than hermaphrodites. These results suggested that females and hermaphrodites possess similar facilitation intensity, and female cushion A . polytrichoides may allocate more resources saved from pollen production to seed production, while hermaphrodites possibly allocate more resources to pollen production hence reducing seed production. The surface areas covered by beneficiaries produced less fiowers and fruits than areas without beneficiaries. In addition, strong negative correlations between beneficiary cover and fiower cover were detected for both females and hermaphrodites, but the correlation strength were similar for these two sex morphs. However, the correlation between beneficiary cover and fruit cover was only significantly negative for females, suggesting that beneficiary plants negatively affect fruit reproduction of females while have neutral effects on hermaphrodites. All the results suggest that to facilitate other beneficiaries can induce reproductive costs on cushion A. polytrichoides , with females possibly suffering greater cost than hermaphrodites. Such differentiation in reproductive costs between sex morphs, in long-term perspective, may imply sex imbalance in population dynamics. Copyright (c) 2023 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
DOI	10.1016/j.pld.2023.07.002
WOS记录号	WOS:001223674100001
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/76051
专题	中国科学院昆明植物研究所
推荐引用方式 GB/T 7714	Chen, Xufang,Zhang, Yazhou,Qian, Lishen,et al. Sex-speci fi c facilitation and reproduction of the gynodioecious cushion plant Arenaria polytrichoides on the Himalaya-Hengduan mountains, SW China[J]. PLANT DIVERSITY,2024,46(2):247-255.
APA	Chen, Xufang,Zhang, Yazhou,Qian, Lishen,Zhou, Renyu,Sun, Hang,&Chen, Jianguo.(2024).Sex-speci fi c facilitation and reproduction of the gynodioecious cushion plant Arenaria polytrichoides on the Himalaya-Hengduan mountains, SW China.PLANT DIVERSITY,46(2),247-255.
MLA	Chen, Xufang,et al."Sex-speci fi c facilitation and reproduction of the gynodioecious cushion plant Arenaria polytrichoides on the Himalaya-Hengduan mountains, SW China".PLANT DIVERSITY 46.2(2024):247-255.

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