Comparative genetic diversity in a sample of pony breeds from the U.K. and North America: a case study in the conservation of global genetic resources
| Autor: | Mina Clare Gwynne Davies-Morel, Deborah M. Nash, Robert McMahon, Wayne Powell, Clare Louise Winton, Neil R. McEwan, Charly Morgan, Pamela Hind, Yves Plante, Matthew J. Hegarty |
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| Rok vydání: | 2015 |
| Předmět: |
microsatellite
education.field_of_study Mitochondrial DNA Genetic diversity Ecology biology mtDNA Pony media_common.quotation_subject Population Conservation Breed horse phylogenetics founder effect biology.animal Microsatellite education Ecology Evolution Behavior and Systematics Original Research Nature and Landscape Conservation Founder effect Diversity (politics) media_common |
| Zdroj: | Ecology and Evolution |
| ISSN: | 2045-7758 |
| Popis: | Most species exist as subdivided ex situ daughter population(s) derived from a single original group of individuals. Such subdivision occurs for many reasons both natural and manmade. Traditional British and Irish pony breeds were introduced to North America (U.S.A. and Canada) within the last 150 years, and subsequently equivalent breed societies were established. We have analyzed selected U.K. and North American equivalent pony populations as a case study for understanding the relationship between putative source and derived subpopulations. Diversity was measured using mitochondrial DNA and a panel of microsatellite markers. Genetic signatures differed between the North American subpopulations according to historical management processes. Founder effect and stochastic drift was apparent, particularly pronounced in some breeds, with evidence of admixture of imported mares of different North American breeds. This demonstrates the importance of analysis of subpopulations to facilitate understanding the genetic effects of past management practices and to lead to informed future conservation strategies. |
| Databáze: | OpenAIRE |
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