English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/101698
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 15 veces en Web of Knowledge®  |  Pub MebCentral Ver citas en PubMed Central  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Variation in DNA methylation transmissibility, genetic heterogeneity and fecundity-related traits in natural populations of the perennial herb Helleborus foetidus

Autor Herrera, Carlos M. ; Medrano, Mónica ; Bazaga, Pilar
Palabras clave Seed size variation
Helleborus foetidus
Helleborus foetidus
Seedling recruitment
Seedling recruitment
Within-plant variation
Within-plant variation
Epigenetic inheritance
Epigenetic inheritance
DNA methylation
DNA methylation
Fecha de publicación 2014
EditorBlackwell Publishing
Citación Molecular Ecology 23: 1085- 1095 (2014)
ResumenInferences about the role of epigenetics in plant ecology and evolution are mostly based on studies of cultivated or model plants conducted in artificial environments. Insights from natural populations, however, are essential to evaluate the possible consequences of epigenetic processes in biologically realistic scenarios with genetically and phenotypically heterogeneous populations. Here, we explore associations across individuals between DNA methylation transmissibility (proportion of methylation-sensitive loci whose methylation status persists unchanged after male gametogenesis), genetic characteristics (assessed with AFLP markers), seed size variability (within-plant seed mass variance), and realized maternal fecundity (number of recently recruited seedlings), in three populations of the perennial herb Helleborus foetidus along a natural ecological gradient in southeastern Spain. Plants (sporophytes) differed in the fidelity with which DNA methylation was transmitted to descendant pollen (gametophytes). This variation in methylation transmissibility was associated with genetic differences. Four AFLP loci were significantly associated with transmissibility and accounted collectively for ∼40% of its sample-wide variance. Within-plant variance in seed mass was inversely related to individual transmissibility. The number of seedlings recruited by individual plants was significantly associated with transmissibility. The sign of the relationship varied between populations, which points to environment-specific, divergent phenotypic selection on epigenetic transmissibility. Results support the view that epigenetic transmissibility is itself a phenotypic trait whose evolution may be driven by natural selection, and suggest that in natural populations epigenetic and genetic variation are two intertwined, rather than independent, evolutionary factors. © 2014 John Wiley & Sons Ltd.
URI http://hdl.handle.net/10261/101698
DOI10.1111/mec.12679
10.1111/mec.12679
Identificadoresdoi: 10.1111/mec.12679
issn: 0962-1083
Aparece en las colecciones: (EBD) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.