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| DOI | 10.1186/s12870-023-04687-w |
| Adaptive potential of maritime pine under contrasting environments | |
| Alia, Ricardo; Climent, Jose; Santos-del-Blanco, Luis; Gonzalez-Arrojo, Amelia; Feito, Isabel; Grivet, Delphine; Majada, Juan | |
| 发表日期 | 2024 |
| ISSN | 1471-2229 |
| 起始页码 | 24 |
| 结束页码 | 1 |
| 卷号 | 24期号:1 |
| 英文摘要 | Background Predicting the adaptability of forest tree populations under future climates requires a better knowledge of both the adaptive significance and evolvability of measurable key traits. Phenotypic plasticity, standing genetic variation and degree of phenotypic integration shape the actual and future population genetic structure, but empirical estimations in forest tree species are still extremely scarce. We analysed 11 maritime pine populations covering the distribution range of the species (119 families and 8 trees/family, ca. 1300 trees) in a common garden experiment planted at two sites with contrasting productivity. We used plant height as a surrogate of fitness and measured five traits (mean and plasticity of carbon isotope discrimination, specific leaf area, needle biomass, Phenology growth index) related to four different strategies (acquisitive economics, photosynthetic organ size, growth allocation and avoidance of water stress).Results Estimated values of additive genetic variation would allow adaptation of the populations to future environmental conditions. Overall phenotypic integration and selection gradients were higher at the high productivity site, while phenotypic integration within populations was higher at the low productivity site. Response to selection was related mainly to photosynthetic organ size and drought-avoidance mechanisms rather than to water use efficiency. Phenotypic plasticity of water use efficiency could be maladaptive, resulting from selection for height growth.Conclusions Contrary to the expectations in a drought tolerant species, our study suggests that variation in traits related to photosynthetic organ size and acquisitive investment of resources drive phenotypic selection across and within maritime pine populations. Both genetic variation and evolvability of key adaptive traits were considerably high, including plasticity of water use efficiency. These characteristics would enable a relatively fast micro-evolution of populations in response to the ongoing climate changes. Moreover, differentiation among populations in the studied traits would increase under the expected more productive future Atlantic conditions. |
| 英文关键词 | Adaptation; Phenotypic selection; Phenotypic plasticity; Drought stress; Selection gradients; Fitness components; Pinus pinaster |
| 语种 | 英语 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| WOS记录号 | WOS:001138261200003 |
| 来源期刊 | BMC PLANT BIOLOGY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/303456 |
| 作者单位 | Consejo Superior de Investigaciones Cientificas (CSIC) |
| 推荐引用方式 GB/T 7714 | Alia, Ricardo,Climent, Jose,Santos-del-Blanco, Luis,et al. Adaptive potential of maritime pine under contrasting environments[J],2024,24(1). |
| APA | Alia, Ricardo.,Climent, Jose.,Santos-del-Blanco, Luis.,Gonzalez-Arrojo, Amelia.,Feito, Isabel.,...&Majada, Juan.(2024).Adaptive potential of maritime pine under contrasting environments.BMC PLANT BIOLOGY,24(1). |
| MLA | Alia, Ricardo,et al."Adaptive potential of maritime pine under contrasting environments".BMC PLANT BIOLOGY 24.1(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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