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

Détails

ID Serval
serval:BIB_DDEE01C83059
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Etude de cas (case report): rapporte une observation et la commente brièvement.
Collection
Publications
Titre
Independent origin of sex chromosomes in two species of the genus Silene.
Périodique
Genetics
Auteur(s)
Mrackova M., Nicolas M., Hobza R., Negrutiu I., Monéger F., Widmer A., Vyskot B., Janousek B.
ISSN
0016-6731
Statut éditorial
Publié
Date de publication
06/2008
Peer-reviewed
Oui
Volume
179
Numéro
2
Pages
1129-1133
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't - Publication Status: ppublish
Résumé
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.
Mots-clé
Amplified Fragment Length Polymorphism Analysis, Chromosomes, Plant/genetics, Evolution, Genes, Plant, Models, Genetic, Phylogeny, Silene/classification, Silene/genetics, Species Specificity
Pubmed
Open Access
Oui
Création de la notice
13/03/2008 8:20
Dernière modification de la notice
20/08/2019 17:02
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