HVA22 from citrus: A small gene family whose some members are involved in plant response to abiotic stress

Gomes Ferreira Monique Drielle, Araújo Castro Jacqueline, Santana Silva Raner José, Micheli Fabienne. 2019. HVA22 from citrus: A small gene family whose some members are involved in plant response to abiotic stress. Plant Physiology and Biochemistry, 142 : 395-404.

https://doi.org/10.1016/j.plaphy.2019.08.003

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Quartile : Q1, Sujet : PLANT SCIENCES

Résumé : The HVA22 gene has been isolated for the first time from the aleurone layer of barley (Hordeum vulgare). Here, we characterized the HVA22 family from citrus (C. clementina and C. sinensis). Twelve genes, 6 in each species, were identified as well as duplication events for some of them. The ORF size ranged from 235 to 804 bp and the protein molecular weight from 94 to 267 kDa. All the citrus HVA22 protein presented transmembrane location and conserved TB2/DP1/HVA22 region. Phylogenetic and gene expression analyses suggested that some citrus HVA22 play a role in flower and fruit development, and that gene expression may be regulated by hormone or environmental conditions. Other regulation levels were also predicted, such as alternative splicing and post-translational modifications. The overall data indicated that citrus HVA22 may be involved in vesicular traffic in stressed cells, and that CcHVA22d could be involved in dehydration tolerance.

Mots-clés Agrovoc : stress abiotique, Citrus sinensis, gène, modèle mathématique, bioinformatique, phylogénie, expression des gènes, Arabidopsis thaliana, résistance à la sécheresse, Citrus clementina

Classification Agris : F30 - Génétique et amélioration des plantes
F60 - Physiologie et biochimie végétale
U10 - Informatique, mathématiques et statistiques

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

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