Mitochondrial DNA evidence of an early Holocene population expansion of threespine sticklebacks from Scotland
| Autor: | Ripan S. Malhi, Gillian Rhett, Alison M. Bell |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
education.field_of_study
Genetic diversity Polymorphism Genetic Time Factors biology Ecology Cytochrome b Population Dynamics Population Stickleback Zoology Gasterosteus biology.organism_classification DNA Mitochondrial Smegmamorpha Haplogroup Gene flow Haplotypes Scotland Genetic structure Genetics Animals education Molecular Biology Ecology Evolution Behavior and Systematics |
| Zdroj: | Molecular Phylogenetics and Evolution. 40:148-154 |
| ISSN: | 1055-7903 |
| DOI: | 10.1016/j.ympev.2006.02.019 |
| Popis: | In this study, we analyzed the cytochrome b gene in threespine stickleback (Gasterosteus aculeatus) populations from Scotland. We found evidence of a postglacial population expansion in Scotland and large differences in genetic diversity estimates among populations. Higher levels of genetic diversity are negatively correlated with distance from the ocean. In addition, distance from the ocean and predation risk both explain variation in plate count in Scottish populations. Overall, the mtDNA data support the racemic model of evolution in threespine stickleback. |
| Databáze: | OpenAIRE |
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