When can stress facilitate divergence by altering time to flowering?
| Autor: | Kathryn A. Hodgins, Crispin Y. Jordan, Dilara Ally |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
Mimulus guttatus drought 010603 evolutionary biology 01 natural sciences phenology phenotypic plasticity Divergence 03 medical and health sciences Assortative mating water stress Mimulus Ecology Evolution Behavior and Systematics 030304 developmental biology Nature and Landscape Conservation Local adaptation Original Research 0303 health sciences Herbivore Phenotypic plasticity Ecology biology Phenology herbivory fungi food and beverages flowering time biology.organism_classification local adaptation |
| Zdroj: | Ecology and Evolution Jordan, C, Ally, D & Hodgins, K A 2015, ' When can stress facilitate divergence by altering time to flowering? ', Ecology and Evolution, pp. n/a-n/a . https://doi.org/10.1002/ece3.1821 |
| ISSN: | 2045-7758 |
| DOI: | 10.1002/ece3.1821 |
| Popis: | Stressors and heterogeneity are ubiquitous features of natural environments, and theory suggests that when environmental qualities alter flowering schedules through phenotypic plasticity, assortative mating can result that promotes evolutionary divergence. Therefore, it is important to determine whether common ecological stressors induce similar changes in flowering time. We review previous studies to determine whether two important stressors, water restriction and herbivory, induce consistent flowering time responses among species; for example, how often do water restriction and herbivory both delay flowering? We focus on the direction of change in flowering time, which affects the potential for divergence in heterogeneous environments. We also tested whether these stressors influenced time to flowering and nonphenology traits using Mimulus guttatus. The literature review suggests that water restriction has variable effects on flowering time, whereas herbivory delays flowering with exceptional consistency. In the Mimulus experiment, low water and herbivory advanced and delayed flowering, respectively. Overall, our results temper theoretical predictions for evolutionary divergence due to habitat‐induced changes in flowering time; in particular, we discuss how accounting for variation in the direction of change in flowering time can either increase or decrease the potential for divergence. In addition, we caution against adaptive interpretations of stress‐induced phenology shifts. |
| Databáze: | OpenAIRE |
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