Independent origin of sex chromosomes in two species of the genus Silene.

Details

Serval ID
serval:BIB_DDEE01C83059
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Title
Independent origin of sex chromosomes in two species of the genus Silene.
Journal
Genetics
Author(s)
Mrackova M., Nicolas M., Hobza R., Negrutiu I., Monéger F., Widmer A., Vyskot B., Janousek B.
ISSN
0016-6731
Publication state
Published
Issued date
06/2008
Peer-reviewed
Oui
Volume
179
Number
2
Pages
1129-1133
Language
english
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't - Publication Status: ppublish
Abstract
Here we introduce a new model species, Silene colpophylla, that could facilitate research of sex chromosome evolution and sex-determining systems. This species is related to the well-established dioecious plant model Silene latifolia. Our results show that S. colpophylla is, similarly to S. latifolia, a male heterogametic species, but its sex chromosomes have evolved from a different pair of autosomes than in S. latifolia. The results of our phylogenetic study and mapping of homologs of S. latifolia X-linked genes indicate that the sex determination system in S. colpophylla evolved independently from that in S. latifolia. We assert that this model species pair will make it possible to study two independent patterns of sex chromosome evolution in related species.
Keywords
Amplified Fragment Length Polymorphism Analysis, Chromosomes, Plant/genetics, Evolution, Genes, Plant, Models, Genetic, Phylogeny, Silene/classification, Silene/genetics, Species Specificity
Pubmed
Open Access
Yes
Create date
13/03/2008 7:20
Last modification date
20/08/2019 16:02
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