Document Detail


Independent origin of sex chromosomes in two species of the genus Silene.
MedLine Citation:
PMID:  18558658     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Martina Mrackova; Michael Nicolas; Roman Hobza; Ioan Negrutiu; Françoise Monéger; Alexander Widmer; Boris Vyskot; Bohuslav Janousek
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Genetics     Volume:  179     ISSN:  0016-6731     ISO Abbreviation:  Genetics     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-06-18     Completed Date:  2008-08-21     Revised Date:  2013-06-05    
Medline Journal Info:
Nlm Unique ID:  0374636     Medline TA:  Genetics     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1129-33     Citation Subset:  IM    
Affiliation:
Laboratory of Plant Developmental Genetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, 612 65 Brno, Czech Republic.
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MeSH Terms
Descriptor/Qualifier:
Amplified Fragment Length Polymorphism Analysis
Biological Evolution
Chromosomes, Plant / genetics*
Genes, Plant
Models, Genetic
Phylogeny
Silene / classification,  genetics*
Species Specificity
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