'Aberrant' plants in cauliflower: 2. Aneuploidy and global DNA methylation
| Autor: | Thierry Beulé, Alain Rival, Armel Salmon, Joseph Jahier, Valérie Cadot, Maria J. Manzanares-Dauleux, Frédérique Eber, François Boulineau, Henri Bellis, Véronique Chable |
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| Přispěvatelé: | Amélioration des Plantes et Biotechnologies Végétales (APBV), AGROCAMPUS OUEST-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Recherche Agronomique (INRA), Institut National de la Recherche Agronomique (INRA)-Université de Rennes (UR)-AGROCAMPUS OUEST, Institut National de la Recherche Agronomique (INRA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Rok vydání: | 2009 |
| Předmět: |
Aneuploidy
Plant Science Horticulture Biology Methylation F30 - Génétique et amélioration des plantes stress Meiosis evolution Genotype Genetics medicine cancer Epigenetics Brassica oleracea var. botrytis Plant disease epigenetics Brassica oleracea botrytis food and beverages Off-type medicine.disease Phenotype somaclonal variation hypermethylation instability [SDV.BV.AP]Life Sciences [q-bio]/Vegetal Biology/Plant breeding DNA methylation chromatin flow-cytometry Ploidy Agronomy and Crop Science |
| Zdroj: | Euphytica Euphytica, 2009, 170 (3), pp.275-287. ⟨10.1007/s10681-009-9978-4⟩ |
| ISSN: | 1573-5060 0014-2336 |
| Popis: | Publication Inra prise en compte dans l'analyse bibliométrique des publications scientifiques mondiales sur les Fruits, les Légumes et la Pomme de terre. Période 2000-2012. http://prodinra.inra.fr/record/256699; Aberrant phenotypes of cauliflower were detected throughout the cultivation period and in any variety type. The rate of these phenotypes in the field has recently increased. We reported previously on the first part of our results which showed that (1) the rate of aberrant plants varied with genotype and cultivation area, (2) the aberrant phenotypes can evolve or reverse to normality during the plant cycle and (3) the capacity to express a variant phenotype can be transmitted to the progeny. An epigenetic hypothesis has been proposed to explain the determinism of the phenomenon. Further investigation on the "aberrant" character focussed on the flow cytometric estimation of ploidy levels and on the parallel observation of meiosis. Only a fraction of aberrant plants did show aneuploidy and various plo < dy levels were found for the same phenotype. Indeed, aneuploidy could not be related to the aberrant phenotype although it could probably be a consequence of the aberration phenomenon. HPLC analysis of global DNA methylation rates showed that DNA hypermethylation occurred in plants which exhibited an evolution of their phenotype during vegetative cycle. The epigenetic origin of aberrant phenotypes in cauliflower is discussed with reference to epigenetic diseases described in human beings. |
| Databáze: | OpenAIRE |
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