Clonality, genetic variation, and the origin of isolated western populations of the carnivorous plant,Sarracenia alata1
| Autor: | John D. Horner, Emma B. Hodcroft, Dean A. Williams, Amanda M. Hale |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | The Journal of the Torrey Botanical Society. 141:326-337 |
| ISSN: | 1940-0616 1095-5674 |
| DOI: | 10.3159/torrey-d-13-00080.1 |
| Popis: | Clonality and the mechanisms by which populations become established can affect the level and pattern of genetic diversity, which can in turn affect the ecology and evolution of those populations. We used amplified fragment length polymorphisms (AFLPs) to examine genetic diversity and clonality in four isolated populations of the rhizomatous pale pitcher plant, Sarracenia alata Alph. Wood, with particular emphasis on determining the extent of clonal spread and the likely mechanisms by which these populations became established. Genetic variation was greater within (87%) than between (13%) populations. The interpopulation genetic differentiation was a function of geographic distance. The mean (± SE) genetic diversity (HE) within populations was 0.126 ± 0.006, and the percentage of polymorphic loci within populations ranged from 58.9 to 72.4% (64.3 ± 2.89, mean ± SE). We found no repeated multilocus genotypes among our samples, nor was there evidence of bimodality of genetic differences among indiv... |
| Databáze: | OpenAIRE |
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