دورية أكاديمية
Intra-individual variation in Galium odoratum is affected by experimental drought and shading.
| العنوان: | Intra-individual variation in Galium odoratum is affected by experimental drought and shading. |
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| المؤلفون: | Møller C; Plant Evolutionary Ecology, Faculty of Biological Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany., March-Salas M; Plant Evolutionary Ecology, Faculty of Biological Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany., Kuppler J; Institute of Evolutionary Ecology and Conservation Genomics, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany., De Frenne P; Forest & Nature Lab, Faculty of Bioscience Engineering, Ghent University, Geraardsbergsesteenweg 267, 9090 Gontrode, Belgium., Scheepens JF; Plant Evolutionary Ecology, Faculty of Biological Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany. |
| المصدر: | Annals of botany [Ann Bot] 2023 Apr 04; Vol. 131 (3), pp. 411-422. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: England NLM ID: 0372347 Publication Model: Print Cited Medium: Internet ISSN: 1095-8290 (Electronic) Linking ISSN: 03057364 NLM ISO Abbreviation: Ann Bot Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: 2002- : Oxford, UK : Oxford University Press Original Publication: Oxford [etc.] |
| مواضيع طبية MeSH: | Droughts* , Galium*, Animals ; Viverridae ; Forests ; Plant Leaves/physiology ; Plants ; Soil |
| مستخلص: | Background and Aims: Climate-change induced warmer spring temperatures advance tree leaf-out and result in earlier shading of the forest floor. Climate change also leads to more frequent droughts. Forest understorey herbs may respond to these environmental changes by varying traits at different hierarchical levels of organization. While trait mean variation at the inter-individual level in response to environmental changes is well-studied, little is known about how variation at the intra-individual level responds. Methods: We sampled genets of the forest understorey herb Galium odoratum from 21 populations in three regions in Germany, varying in microclimatic conditions. The genets were transplanted into a common garden, where we applied shading and drought treatments. We measured plant height and leaf length and width, and calculated the coefficient of variation (CV) at different hierarchical levels: intra-population, intra-genet, intra-ramet and intra-shoot. Key Results: Variance partitioning showed that intra-shoot CV represented most of the total variation, followed by intra-ramet CV. We found significant variation in CV of plant height and leaf width among populations of origin, indicating that CV is at least partly genetically based. The soil temperature at populations' origins correlated negatively with CV in plant height, suggesting adaptation to local conditions. Furthermore, we observed that early shade led to increased intra-ramet CV in leaf length, while drought reduced intra-shoot CV in leaf width. Finally, intra-shoot leaf width mean and CV were independent under control conditions but correlated under drought. Conclusions: Our experimental results reveal correlations of intra-individual variation with soil temperature, indicating that intra-individual variation can evolve and may be adaptive. Intra-individual variation responded plastically to drought and shading, suggesting functional changes to improve light capture and reduce evapotranspiration. In conclusion, intra-individual variation makes up the majority of total trait variation in this species and can play a key role in plant adaptation to climatic change. (© The Author(s) 2022. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.) |
| التعليقات: | Comment in: Ann Bot. 2023 Apr 4;131(3):i-ii. (PMID: 36806383) |
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| فهرسة مساهمة: | Keywords: Galium odoratum; Clonal plant; common-garden experiment; forest understorey herbs; genetic differentiation; intra-individual variation; intra-specific trait variation; microclimate; phenotypic plasticity; sub-individual variation |
| المشرفين على المادة: | 0 (Soil) |
| تواريخ الأحداث: | Date Created: 20221222 Date Completed: 20230406 Latest Revision: 20231223 |
| رمز التحديث: | 20231223 |
| مُعرف محوري في PubMed: | PMC10072115 |
| DOI: | 10.1093/aob/mcac148 |
| PMID: | 36546703 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1095-8290 |
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| DOI: | 10.1093/aob/mcac148 |