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Artículo

Empirical demonstration of hybrid chromosomal races in house mice

Giménez, Mabel DionisiaIcon ; Panithanarak, Thadsin; Hauffe, Heidi C.; Searle, Jeremy B.
Fecha de publicación: 07/2016
Editorial: Society for the Study of Evolution
Revista: Evolution
ISSN: 0014-3820
e-ISSN: 1558-5646
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

Western house mice (Mus musculus domesticus) and common shrews (Sorex araneus) are important models for study of chromosomal speciation. Both had ancestral karyotypes consisting of telocentric chromosomes, and each is subdivided into numerous chromosomal races many of which have resulted from fixation of new mutations (Robertsonian fusions and whole-arm reciprocal translocations). However, some chromosomal races in both species may alternatively have originated through hybridization, with particular homozygous recombinant products reaching fixation. Here, we demonstrate the process of generation of hybrid chromosomal races for the first time in either species using molecular markers. Analysis of centromeric microsatellite markers show that the Mid Valtellina (IMVA) and Upper Valtellina (IUVA) chromosomal races of the house mouse are recombinant products of hybridization of the Lower Valtellina (ILVA) and Poschiavo (CHPO) chromosomal races, supporting earlier theoretical analysis. IMVA and IUVA occupy a small area of the Italian Alps where ILVA makes contact with CHPO. IUVA and CHPO have previously been shown to be reproductively isolated in one village, emphasizing that hybrid chromosomal races in small mammals, as in plants, have the potential to be part of the speciation process.
Palabras clave: Chromosomal Speciation , Hybridization , Mus Musculus Domesticus , Recombinational Speciation , Robertsonian Fusion , Zonal Raciation
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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/11336/39442
DOI: http://dx.doi.org/10.1111/evo.12970
URL: https://onlinelibrary.wiley.com/doi/abs/10.1111/evo.12970
Colecciones
Articulos(CCT - NORDESTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NORDESTE
Articulos(IBS)
Articulos de INSTITUTO DE BIOLOGIA SUBTROPICAL
Citación
Giménez, Mabel Dionisia; Panithanarak, Thadsin; Hauffe, Heidi C.; Searle, Jeremy B.; Empirical demonstration of hybrid chromosomal races in house mice; Society for the Study of Evolution; Evolution; 70; 7; 7-2016; 1651-1658
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