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Genome-wide analysis of the AP2/ERF superfamily in apple and transcriptional evidence of ERF involvement in scab pathogenesis

Girardi, Cesar Luis and Rombaldi, César Valmor and Dal Cero, Joceani and Nobile, Paula Macedo and Laurens, François and Bouzayen, Mondher and Quecini, Vera Genome-wide analysis of the AP2/ERF superfamily in apple and transcriptional evidence of ERF involvement in scab pathogenesis. (2013) Scientia Horticulturae, 151. 112-121. ISSN 0304-4238

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Official URL: http://dx.doi.org/10.1016/j.scienta.2012.12.017

Abstract

The APETALA2 (AP2)/ETHYLENE RESPONSE FACTOR (ERF) superfamily of transcriptional regulators is involved in several growth, development and stress responses processes in higher plants. Currently, the available information on the biological roles of AP2/ERF genes is derived from Arabidopsis thaliana. In the present work, we have investigated genomic and transcriptional aspects of AP2/ERF genes in the economically important perennial species, Malus ×domestica. We have identified 259 sequences containing at least one ERF domain in apple genome. The vast majority of the putative proteins display predicted nuclear localization, compatible with a biological role in transcription regulation. The AP2 and ERF families are greatly expanded in apple. Whole-genome analyses in other plant species have identified a single genomic sequence with divergent ERF, whereas in apple seven soloists are present. In the apple genome, the most noteworthy expansion occurred in sub-groups V, VIII and IX of the ERF family. Expression profiling analyses have revealed the association of ripening-involved ERF genes to scab (Venturia inequalis) pathogenesis in the susceptible Gala cultivar, indicating that gene expansion processes were accompanied by functional divergence. The presented analyses of AP2/ERF genes in apple provide evidences of shared ethylene-mediated signaling pathways in ripening and disease responses.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Scientia Horticulturae website : http://dx.doi.org/10.1016/j.scienta.2012.12.017
HAL Id:hal-01071932
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Agrocampus Ouest (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Other partners > Universidade Federal de Pelotas - UFPel (BRAZIL)
Other partners > Embrapa Uva e Vinho (BRAZIL)
Other partners > Université d'Angers (FRANCE)
Laboratory name:
Funders:
Embrapa grant number 02.07.05.001.00
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Deposited By: Brigitte LAFFORGUE
Deposited On:30 Apr 2014 12:03

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