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Artículo

Landscape genetics in the subterranean rodent Ctenomys “chasiquensis” associated with highly disturbed habitats from the southeastern Pampas region, Argentina

Mora, Matias SebastianIcon ; Mapelli, Fernando JavierIcon ; López, Aldana SoledadIcon ; Gomez Fernandez, Maria JimenaIcon ; Mirol, Patricia MonicaIcon ; Kittlein, Marcelo JavierIcon
Fecha de publicación: 13/12/2017
Editorial: Springer
Revista: Genetica
ISSN: 0016-6707
e-ISSN: 1573-6857
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

Studies of genetic differentiation in fragmented environments help us to identify those landscape features that most affect gene flow and dispersal patterns. Particularly, the assessment of the relative significance of intrinsic biological and environmental factors affecting the genetic structure of populations becomes crucial. In this work, we assess the current dispersal patterns and population structure of Ctenomys “chasiquensis”, a vulnerable and endemic subterranean rodent distributed on a small area in Central Argentina, using 9 polymorphic microsatellite loci. We use landscape genetics approaches to assess the relationship between genetic connectivity among populations and environmental attributes. Our analyses show that populations of C. “chasiquensis” are moderately to highly structured at a regional level. This pattern is most likely the outcome of substantial gene flow on the more homogeneous sand dune habitat of the Northwest of its distributional range, in conjunction with an important degree of isolation of eastern and southwestern populations, where the optimal habitat is surrounded by a highly fragmented landscape. Landscape genetics analysis suggests that habitat quality and longitude were the environmental factors most strongly associated with genetic differentiation/uniqueness of populations. In conclusion, our results indicate an important genetic structure in this species, even at a small spatial scale, suggesting that contemporary habitat fragmentation increases population differentiation.
Palabras clave: Ctenomys &Ldquo;Chasiquensis&Rdquo; , Dispersal Patterns , Landscape Genetics , Population Genetics , Subterranean Rodents
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/64516
DOI: https://dx.doi.org/10.1007/s10709-017-9983-9
URL: https://link.springer.com/article/10.1007/s10709-017-9983-9
Colecciones
Articulos(CCT - MAR DEL PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - MAR DEL PLATA
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos(IIMYC)
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Citación
Mora, Matias Sebastian; Mapelli, Fernando Javier; López, Aldana Soledad; Gomez Fernandez, Maria Jimena; Mirol, Patricia Monica; et al.; Landscape genetics in the subterranean rodent Ctenomys “chasiquensis” associated with highly disturbed habitats from the southeastern Pampas region, Argentina; Springer; Genetica; 145; 6; 13-12-2017; 575-591
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