Nectar robbers influence the trait-fitness relationship of Primula secundiflora | |
Wu, Y.; Zhang, Z-Q; Li, Q-J | |
刊名 | PLANT BIOLOGY |
2019 | |
卷号 | 21期号:5页码:967-974 |
关键词 | Direct and indirect effects inter-morph variation nectar robbers Primula secundiflora trait-fitness relationship |
ISSN号 | 1435-8603 |
DOI | 10.1111/plb.13000 |
英文摘要 | The trait-fitness relationship influences the strength and direction of floral evolution. To fully understand and predict the evolutionary trajectories of floral traits, it is critical to disentangle the direct and indirect effects of floral traits on plant fitness in natural populations. We experimentally quantified phenotypic selection on floral traits through female fitness and estimated the casual effects of nectar robbing with different nectar robbing intensities on trait-fitness relationships in both the L- (long-style and short-anther phenotype) and S-morph (short-style and long-anther phenotype) flowers among Primula secundiflora populations. A larger number of flowers and wider corolla tubes had both direct and indirect positive effects on female fitness in the P. secundiflora populations. The indirect effects of these two traits on female fitness were mediated by nectar robbers. The indirect effect of the number of flowers on female fitness increased with increasing nectar robbing intensity. In most populations, the direct and/or indirect effects of floral traits on female fitness were stronger in the S-morph flowers than in the L-morph flowers. In addition, nectar robbers had a direct positive effect on female fitness, but this effect varied between the L- and S-morph flowers. These results show the potential role of nectar robbers in influencing the trait-fitness relationships in this primrose species. |
学科主题 | Plant Sciences |
语种 | 英语 |
WOS记录号 | WOS:000478947900021 |
内容类型 | 期刊论文 |
源URL | [http://ir.xtbg.org.cn/handle/353005/11461] |
专题 | 西双版纳热带植物园_植物进化生态研究组 |
作者单位 | 1.[Wu, Y. 2.Zhang, Z-Q 3.Yunnan Univ, Yunnan Key Lab Plant Reprod Adapt & Evolutionary, Kunming, Yunnan, Peoples R China 4.Yunnan Univ, State Key Lab Conservat & Utilizat Bioresources Y, Lab Ecol & Evolutionary Biol, Kunming 650091, Yunnan, Peoples R China 5.[Wu, Y.] Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Mengla, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Y.,Zhang, Z-Q,Li, Q-J. Nectar robbers influence the trait-fitness relationship of Primula secundiflora[J]. PLANT BIOLOGY,2019,21(5):967-974. |
APA | Wu, Y.,Zhang, Z-Q,&Li, Q-J.(2019).Nectar robbers influence the trait-fitness relationship of Primula secundiflora.PLANT BIOLOGY,21(5),967-974. |
MLA | Wu, Y.,et al."Nectar robbers influence the trait-fitness relationship of Primula secundiflora".PLANT BIOLOGY 21.5(2019):967-974. |
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