Chromosomal rearrangements do not seem to affect the gene flow in hybrid zones between karyotypic races of the common shrew (Sorex araneus).

Détails

ID Serval
serval:BIB_5DCD2621FDA5
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Chromosomal rearrangements do not seem to affect the gene flow in hybrid zones between karyotypic races of the common shrew (Sorex araneus).
Périodique
Evolution
Auteur(s)
Horn A., Basset P., Yannic G., Banaszek A., Borodin P.M., Bulatova N.S., Jadwiszczak K., Jones R.M., Polyakov A.V., Ratkiewicz M., Searle J.B., Shchipanov N.A., Zima J., Hausser J.
ISSN
1558-5646 (Electronic)
ISSN-L
0014-3820
Statut éditorial
Publié
Date de publication
2012
Volume
66
Numéro
3
Pages
882-889
Langue
anglais
Résumé
Chromosomal rearrangements are proposed to promote genetic differentiation between chromosomally differentiated taxa and therefore promote speciation. Due to their remarkable karyotypic polymorphism, the shrews of the Sorex araneus group were used to investigate the impact of chromosomal rearrangements on gene flow. Five intraspecific chromosomal hybrid zones characterized by different levels of karyotypic complexity were studied using 16 microsatellites markers. We observed low levels of genetic differentiation even in the hybrid zones with the highest karyotypic complexity. No evidence of restricted gene flow between differently rearranged chromosomes was observed. Contrary to what was observed at the interspecific level, the effect of chromosomal rearrangements on gene flow was undetectable within the S. araneus species.
Mots-clé
Genetic structure, microsatellites, Robertsonian rearrangements, Sorex araneus, speciation
Pubmed
Web of science
Open Access
Oui
Création de la notice
05/05/2012 15:54
Dernière modification de la notice
20/08/2019 14:15
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