English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/52988
Título

Epigenetic characterization of the vegetative and floral stages of azalea buds: dynamics of DNA methylation and histone H4 acetylation

AutorMeijón, Mónica; Valledor, Luis; Santamaría, María Estrella; Testillano, P.S. ; Risueño, María Carmen ; Rodríguez, Roberto; Feito, Isabel; Cañal, María Jesús
Palabras claveChromatin configuration
Epigenetic code
Immunocytochemistry
Phase change
Plant development
Fecha de publicaciónoct-2009
EditorElsevier
CitaciónJournal of Plant Physiology 166(15):1624-1636(2009)
ResumenFloral induction in plants is achieved through a complex genetic network and regulated by multiple environmental and endogenous cues. Epigenetic control is determinative in plants for coordinating the switch to flowering under favorable environmental conditions and achieving reproductive success. Global DNA methylation, whose increase is associated with heterochromatinization-cell differentiation, and histone H4 acetylation, which is linked to euchromatin, were analyzed in vegetative and floral buds of azalea in order to study the involvement of epigenetic mechanisms in the floral development of woody plants. The results showed an increase of DNA methylation in floral buds in contrast to the decrease observed for acetylated H4 (AcH4) levels. In addition, when the distributions of 5-mdC and AcH4 in vegetative and floral buds of azalea were analyzed by immunodetection, opposite patterns in their distribution were revealed and confirmed the existence of different cell types in the shoot apical meristem with varying degrees of differentiation
Descripción9 páginas, 5 figuras, 3 tablas -- PAGS nros. 1624-1636
Versión del editorhttp://dx.doi.org/10.1016/j.jplph.2009.04.014
URIhttp://hdl.handle.net/10261/52988
DOI10.1016/j.jplph.2009.04.014
ISSN0176-1617
E-ISSN1618-1328
Aparece en las colecciones: (CIB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
restringido.pdf21,67 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


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