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Evolutionary patterns of the mitochondrial genome in the Moorish gecko, Tarentola mauritanica

AutorRato, Catarina; Carranza, Salvador ; Perera, Ana; Harris, David James
Palabras claveTarentola mauritanica
Selective sweep
Bottleneck
Background selection
Polymorphism
Positive selection
Fecha de publicación1-ene-2013
EditorElsevier
CitaciónGene 512(1): 166-173 (2013)
ResumenA previous study on the evolutionary patterns of Tarentola mauritanica demonstrated that low levels of mitochondrial diversity observed in the European populations relative to nuclear markers were consistent with a selective sweep hypothesis. In order to unravel the mitochondrial evolutionary history in this European population and two other lineages of T. mauritanica (Iberian and North African clades), variation within 22 nearly complete mitogenomes was analyzed. Surprisingly, each clade seems to have a distinct evolutionary history; with both the European and Iberian clades presenting a decrease of polymorphism, which in the former is consistent with departure from neutrality of the mtDNA (positive or background selection), but in the latter seems to be the result of a bottleneck after a population expansion. The pattern exhibited by the North African clade seems to be a consequence of adaptation to certain mtDNA variants by positive selection. © 2012 Elsevier B.V.
Versión del editorhttp://dx.doi.org/10.1016/j.gene.2012.09.032
URIhttp://hdl.handle.net/10261/112537
DOI10.1016/j.gene.2012.09.032
Identificadoresdoi: 10.1016/j.gene.2012.09.032
issn: 0378-1119
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