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Please use this identifier to cite or link to this item: http://dspace.utalca.cl/handle/1950/8767

Title: Epigenetic repressor-like genes are differentially regulated during grapevine (Vitis vinifera L.) development
Authors: Almada, R.
Cabrera, N.
Casaretto, J.A.
Pena-Cortes, H.
Ruiz-Lara, S.
Villanueva, E.G.
Keywords: Bud development
Dormancy
Flowering
Polycomb genes
Vitis vinifera
Issue Date: Oct-2011
Publisher: SPRINGER
Citation: PLANT CELL REPORTS Volume: 30 Issue: 10 Pages: 1959-1968 DOI: 10.1007/s00299-011-1104-0
Abstract: Grapevine sexual reproduction involves a seasonal separation between inflorescence primordia (flowering induction) and flower development. We hypothesized that a repression mechanism implicating epigenetic changes could play a role in the seasonal separation of these two developmental processes in grapevine. Therefore, the expression of five grapevine genes with homology to the Arabidopsis epigenetic repressor genes FERTILIZATION INDEPENDENT ENDOSPERM (FIE), EMBRYONIC FLOWER 2 (EMF2), CURLY LEAF (CLF), MULTICOPY SUPPRESSOR OF IRA 1 (MSI1) and SWINGER (SWN) was analyzed during the development of buds and vegetative and reproductive organs. During bud development, the putative grapevine epigenetic repressor genes VvCLF, VvEMF2, VvMSI1, VvSWN and VvFIE are mainly expressed in latent buds at the flowering induction period, but also detected during bud burst and inflorescence/flower development. The overlapping expression patterns of grapevine PcG-like genes in buds suggest that chromatin remodeling mechanisms could be operating during grapevine bud development for controlling processes such as seasonal flowering, dormancy and bud burst. Furthermore, the expression of grapevine PcG-like genes was also detected in fruits and vegetative organs, suggesting that epigenetic changes could be at the basis of the regulation of various proliferation-differentiation cell transitions that occur during grapevine development.
Description: Almada, R (Almada, Ruben)1,2; Cabrera, N (Cabrera, Nuri)2; Casaretto, JA (Casaretto, Jose A.)2; Ruiz-Lara, S (Ruiz-Lara, Simon)2; Villanueva, EG (Gonzalez Villanueva, Enrique)2 / Univ Talca, Inst Biol Vegetal & Biotecnol, Talca, Chile
URI: http://dspace.utalca.cl/handle/1950/8767
ISSN: 0721-7714
Appears in Collections:Artículos en publicaciones ISI - Universidad de Talca

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