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

Details

Serval ID
serval:BIB_5DCD2621FDA5
Type
Article: article from journal or magazin.
Collection
Publications
Title
Chromosomal rearrangements do not seem to affect the gene flow in hybrid zones between karyotypic races of the common shrew (Sorex araneus).
Journal
Evolution
Author(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
Publication state
Published
Issued date
2012
Volume
66
Number
3
Pages
882-889
Language
english
Abstract
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.
Keywords
Genetic structure, microsatellites, Robertsonian rearrangements, Sorex araneus, speciation
Pubmed
Web of science
Open Access
Yes
Create date
05/05/2012 15:54
Last modification date
20/08/2019 14:15
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