| Genetic structure is influenced by landscape features: empirical evidence from a roe deer population. | |
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MedLine Citation:
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PMID: 16629819 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The delimitation of population units is of primary importance in population management and conservation biology. Moreover, when coupled with landscape data, the description of population genetic structure can provide valuable knowledge about the permeability of landscape features, which is often difficult to assess by direct methods (e.g. telemetry). In this study, we investigated the genetic structuring of a roe deer population which recently recolonized a fragmented landscape. We sampled 1148 individuals from a 40 x 55-km area containing several putative barriers to deer movements, and hence to gene flow, namely a highway, rivers and several canals. In order to assess the effect of these landscape features on genetic structure, we implemented a spatial statistical model known as geneland which analyses genetic structure, explicitly taking into account the spatial nature of the problem. Two genetic units were inferred, exhibiting a very low level of differentiation (F(ST) = 0.008). The location of their boundaries suggested that there are no absolute barriers in this study area, but that the combination of several landscape features with low permeability can lead to population differentiation. Our analysis hence suggests that the landscape has a significant influence on the structuring of the population under study. It also illustrates the use of geneland as a powerful method to infer population structure, even in situations of young populations exhibiting low genetic differentiation. |
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Authors:
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A Coulon; G Guillot; J-F Cosson; J M A Angibault; S Aulagnier; B Cargnelutti; M Galan; A J M Hewison |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Molecular ecology Volume: 15 ISSN: 0962-1083 ISO Abbreviation: Mol. Ecol. Publication Date: 2006 May |
Date Detail:
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Created Date: 2006-04-24 Completed Date: 2006-06-16 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9214478 Medline TA: Mol Ecol Country: England |
Other Details:
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Languages: eng Pagination: 1669-79 Citation Subset: IM |
Affiliation:
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Comportement et Ecologie de la Faune Sauvage, INRA, B.P.52627, Castanet-Tolosan, France. coulon@toulouse.inra.fr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Deer / genetics* Environment Gene Flow Geography* Microsatellite Repeats Models, Genetic Population Dynamics Trees |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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