دورية أكاديمية
Balancing selection and drift in a polymorphic salamander metapopulation.
| العنوان: | Balancing selection and drift in a polymorphic salamander metapopulation. |
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| المؤلفون: | Giery ST; Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA., Zimova M; School for Environment and Sustainability, University of Michigan, Ann Arbor, MI 48109, USA., Drake DL; Department of Ecology and Evolutionary Biology; Center of Biological Risk, University of Connecticut, Storrs, CT 06269, USA., Urban MC; Department of Ecology and Evolutionary Biology; Center of Biological Risk, University of Connecticut, Storrs, CT 06269, USA. |
| المصدر: | Biology letters [Biol Lett] 2021 Apr; Vol. 17 (4), pp. 20200901. Date of Electronic Publication: 2021 Apr 14. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
| اللغة: | English |
| بيانات الدورية: | Publisher: The Royal Society Country of Publication: England NLM ID: 101247722 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1744-957X (Electronic) Linking ISSN: 17449561 NLM ISO Abbreviation: Biol Lett Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: London : The Royal Society, 2005- |
| مواضيع طبية MeSH: | Ambystoma* , Urodela*/genetics, Animals ; Genetic Drift ; Polymorphism, Genetic ; Population Dynamics ; Selection, Genetic |
| مستخلص: | Understanding how genetic variation is maintained in a metapopulation is a longstanding problem in evolutionary biology. Historical resurveys of polymorphisms have offered efficient insights about evolutionary mechanisms, but are often conducted on single, large populations, neglecting the more comprehensive view afforded by considering all populations in a metapopulation. Here, we resurveyed a metapopulation of spotted salamanders ( Ambystoma maculatum ) to understand the evolutionary drivers of frequency variation in an egg mass colour polymorphism. We found that this metapopulation was demographically, phenotypically and environmentally stable over the last three decades. However, further analysis revealed evidence for two modes of evolution in this metapopulation-genetic drift and balancing selection. Although we cannot identify the balancing mechanism from these data, our findings present a clear view of contemporary evolution in colour morph frequency and demonstrate the importance of metapopulation-scale studies for capturing a broad range of evolutionary dynamics. |
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| فهرسة مساهمة: | Keywords: Ambystoma maculatum; contemporary evolution; eco-evolutionary dynamics; historical resurvey; microgeographic variation; population size |
| تواريخ الأحداث: | Date Created: 20210414 Date Completed: 20210426 Latest Revision: 20240401 |
| رمز التحديث: | 20240401 |
| مُعرف محوري في PubMed: | PMC8086932 |
| DOI: | 10.1098/rsbl.2020.0901 |
| PMID: | 33849348 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1744-957X |
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| DOI: | 10.1098/rsbl.2020.0901 |