Knowledge Management System of Kunming Institute of Botany,CAS
| Sexual dimorphism, temporal niche differentiation, and evidence for the Jack Sprat effect in an annual dioecious plant | |
Yu,Qian; Barrett,Spencer C. H.; Wang,Xin-Jia; Zhong,Li; Wang,Hong ; Li,De-Zhu; Zhou,Wei
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| 2021 | |
| 发表期刊 | JOURNAL OF SYSTEMATICS AND EVOLUTION
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| ISSN | 1674-4918 |
| 摘要 | Sexual dimorphism in dioecious plants often occurs as a consequence of the different resource requirements of females and males, especially during reproduction. The contrasting reproductive roles of the sexes can influence the phenology of growth, plant size, and flowering time, with implications for the intensity of competitive interactions within and between the sexes. Here, we investigate the influence of contrasting nutrient regimes and intra-sexual and inter-sexual competition on the expression of sexual dimorphism in life-history traits and biomass allocation throughout the life cycle of the dioecious annual Rumex hastatulus Baldw. (Polygonaceae). Development of a sex-specific marker enabled us to quantify the influence of competition on sex-specific differences in mortality and vegetative traits. We were particularly interested in determining whether the overall performance of the sexes might differ between the two forms of intra-specific competition, potentially providing evidence for sexual specialization in resource acquisition and niche differentiation. Our results indicated that although patterns of sexual dimorphism were dynamic, they were largely insensitive to nutrient conditions. We found that intra-sexual competition was more severe than inter-sexual competition, differentially affecting mortality and most traits during the vegetative and particularly the reproductive stage of the life history. Female trait values generally increased more under inter-sexual than intra-sexual competition in comparison to males. Our findings are consistent with temporal niche differentiation resulting from sexual specialization for different resource requirements and provide evidence for the Jack Sprat effect. |
| 关键词 | competition experiment dioecy Jack Sprat effect niche differentiation Rumex hastatulus sex-specific genetic marker sexual dimorphism RATIO VARIATION SEED DISPERSAL COMPETITIVE ABILITY SPATIAL SEGREGATION RESOURCE-ALLOCATION LOW-MAINTENANCE WIND DISPERSAL RUMEX-ACETOSA SCAR MARKERS SEXES |
| DOI | 10.1111/jse.12753 |
| WOS记录号 | WOS:000679049700001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/73533 |
| 专题 | 中国科学院昆明植物研究所 |
| 作者单位 | 1.[Yu, Qian 2.Li, De-Zhu 3.Chinese Acad Sci, Kunming Inst Bot, Plant Germplasm & Genom Ctr, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China 4.Wang, Xin-Jia 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.[Barrett, Spencer C. H.] Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON M5S 3B2, Canada 7.[Wang, Xin-Jia 8.Zhong, Li 9.Wang, Hong 10.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Div & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu,Qian,Barrett,Spencer C. H.,Wang,Xin-Jia,et al. Sexual dimorphism, temporal niche differentiation, and evidence for the Jack Sprat effect in an annual dioecious plant[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2021. |
| APA | Yu,Qian.,Barrett,Spencer C. H..,Wang,Xin-Jia.,Zhong,Li.,Wang,Hong.,...&Zhou,Wei.(2021).Sexual dimorphism, temporal niche differentiation, and evidence for the Jack Sprat effect in an annual dioecious plant.JOURNAL OF SYSTEMATICS AND EVOLUTION. |
| MLA | Yu,Qian,et al."Sexual dimorphism, temporal niche differentiation, and evidence for the Jack Sprat effect in an annual dioecious plant".JOURNAL OF SYSTEMATICS AND EVOLUTION (2021). |
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| 98.Sexual dimorphism（1951KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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