Contrasting transcriptional programs control postharvest development of apples (Malus x domestica Borkh.) submitted to cold storage and ethylene blockage.

Apple is commercially important worldwide. Favorable genomic contexts and postharvest technologies allow year-round availability. Although ripening is considered a unidirectional developmental process toward senescence, storage at low temperatures, alone or in combination with ethylene blockage, is effective in preserving apple properties. Quality traits and genome wide expression were integrated to investigate the mechanisms underlying postharvest changes. Development and conservation techniques were responsible for transcriptional reprogramming and distinct programs associated with quality traits. A large portion of the differentially regulated genes constitutes a program involved in ripening and senescence, whereas a smaller module consists of genes associated with reestablishment and maintenance of juvenile traits after harvest. Ethylene inhibition was associated with a reversal of ripening by transcriptional induction of anabolic pathways. Our results demonstrate that the blockage of ethylene perception and signaling leads to upregulation of genes in anabolic pathways. We also associated complex phenotypes to subsets of differentially regulated genes. KEYWORDS: 1-methylcyclopropene, firmness, fruit quality, gene expression, microarray

Bibliographic Details

Main Authors:	STORCH, T. T., FINATTO, T., BRUNEAU, M, ORSEL-BALDWIN, M., RENOU, J-P, ROMBALDI, C. V., QUECINI, V., LAURENS, F., GIRARDI, C. L.
Other Authors:	Tatiane Timm Storch, Embrapa Uva e Vinho; Taciane Finatto, Embrapa Uva e Vinho; Maryline Bruneau, Ba ? timent B, Institut de Recherche en Horticulture et Semences IRHS, Institut National de la Recherche Agronomique INRA, 49071 Beaucouze ? , France; Mathilde Orsel-Baldwin, Ba ? timent B, Institut de Recherche en Horticulture et Semences IRHS, Institut National de la Recherche Agronomique INRA, 49071 Beaucouze ? , France; Jean-Pierre Renou, Ba ? timent B, Institut de Recherche en Horticulture et Semences IRHS, Institut National de la Recherche Agronomique INRA, 49071 Beaucouze ? , France; Cesar Valmor Rombaldi, Departamento de Cie ? ncia e Tecnologia Agroindustrial, Faculdade de Agronomia Eliseu Maciel, Universidade Federal de Pelotas, Pelotas, RS 96050-500, Brazil; VERA MARIA QUECINI, CNPUV; François Laurens, Ba ? timent B, Institut de Recherche en Horticulture et Semences IRHS, Institut National de la Recherche Agronomique INRA, 49071 Beaucouze ? , France; CESAR LUIS GIRARDI, CNPUV.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2017-10-20
Subjects:	Microarray., 1-methylcyclopropene, Firmness, Fruit quality, Gene expression.,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1077795
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