Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/249866
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | RAD mapping reveals an evolving, polymorphic and fuzzy boundary of a plant pseudoautosomal region |
Autor: | Qiu, S.; Bergero, R.; Guirao-Rico, Sara CSIC ORCID; Campos, J. L.; Cezard, T.; Gharbi, K.; Charlesworth, D. | Fecha de publicación: | 2016 | Editor: | John Wiley & Sons | Citación: | Molecular Ecology 25(1): 414-430 (2016) | Resumen: | How loss of genetic exchanges (recombination) evolves between sex chromosomes is a long-standing question. Suppressed recombination may evolve when a sexually antagonistic (SA) polymorphism occurs in a partially sex-linked ‘pseudoautosomal’ region (or ‘PAR’), maintaining allele frequency differences between the two sexes, and creating selection for closer linkage with the fully sex-linked region of the Y chromosome in XY systems, or the W in ZW sex chromosome systems. Most evidence consistent with the SA polymorphism hypothesis is currently indirect, and more studies of the genetics and population genetics of PAR genes are clearly needed. The sex chromosomes of the plant Silene latifolia are suitable for such studies, as they evolved recently and the loss of recombination could still be ongoing. Here, we used RAD sequencing to genetically map sequences in this plant, which has a large genome (c. 3 gigabases) and no available whole-genome sequence. We mapped 83 genes on the sex chromosomes, and comparative mapping in the related species S. vulgaris supports previous evidence for additions to an ancestral PAR and identified at least 12 PAR genes. We describe evidence that recombination rates have been reduced in meiosis of both sexes, and differences in recombination between S. latifolia families suggest ongoing recombination suppression. Large allele frequency differences between the sexes were found at several loci closely linked to the PAR boundary, and genes in different regions of the PAR showed striking sequence diversity patterns that help illuminate the evolution of the PAR. | Versión del editor: | https://doi.org/10.1111/mec.13297 | URI: | http://hdl.handle.net/10261/249866 | DOI: | 10.1111/mec.13297 | E-ISSN: | 1365-294X |
Aparece en las colecciones: | (CRAG) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 59,24 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
27
checked on 08-may-2024
WEB OF SCIENCETM
Citations
24
checked on 27-feb-2024
Page view(s)
50
checked on 15-may-2024
Download(s)
12
checked on 15-may-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.