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Genome-Wide Identification of Histone Modifiers and Their Expression Patterns during Fruit Abscission in Litchi.
Peng, Manjun; Ying, Peiyuan; Liu, Xuncheng; Li, Caiqin; Xia, Rui; Li, Jianguo; Zhao, Minglei.
Affiliation
  • Peng M; State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, China Litchi Research Center, South China Agricultural UniversityGuangzhou, China.
  • Ying P; Guangdong Litchi Engineering Research Center, College of Horticulture, South China Agricultural UniversityGuangzhou, China.
  • Liu X; State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, China Litchi Research Center, South China Agricultural UniversityGuangzhou, China.
  • Li C; Guangdong Litchi Engineering Research Center, College of Horticulture, South China Agricultural UniversityGuangzhou, China.
  • Xia R; Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of SciencesGuangzhou, China.
  • Li J; State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, China Litchi Research Center, South China Agricultural UniversityGuangzhou, China.
  • Zhao M; Guangdong Litchi Engineering Research Center, College of Horticulture, South China Agricultural UniversityGuangzhou, China.
Front Plant Sci ; 8: 639, 2017.
Article de En | MEDLINE | ID: mdl-28496451
Modifications to histones, including acetylation and methylation processes, play crucial roles in the regulation of gene expression in plant development as well as in stress responses. However, limited information on the enzymes catalyzing histone acetylation and methylation in non-model plants is currently available. In this study, several histone modifier (HM) types, including six histone acetyltransferases (HATs), 11 histone deacetylases (HDACs), 48 histone methyltransferases (HMTs), and 22 histone demethylases (HDMs), are identified in litchi (Litchi chinensis Sonn. cv. Feizixiao) based on similarities in their sequences to homologs in Arabidopsis (A. thaliana), tomato (Solanum lycopersicum), and rice (Oryza sativa). Phylogenetic analyses reveal that HM enzymes can be grouped into four HAT, two HDAC, two HMT, and two HDM subfamilies, respectively, while further expression profile analyses demonstrate that 17 HMs were significantly altered during fruit abscission in two field treatments. Analyses reveal that these genes exhibit four distinct patterns of expression in response to fruit abscission, while an in vitro assay was used to confirm the HDAC activity of LcHDA2, LcHDA6, and LcSRT2. Our findings are the first in-depth analysis of HMs in the litchi genome, and imply that some are likely to play important roles in fruit abscission in this commercially important plant.
Mots clés

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Type d'étude: Diagnostic_studies / Prognostic_studies Langue: En Journal: Front Plant Sci Année: 2017 Type de document: Article Pays d'affiliation: Chine Pays de publication: Suisse

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Type d'étude: Diagnostic_studies / Prognostic_studies Langue: En Journal: Front Plant Sci Année: 2017 Type de document: Article Pays d'affiliation: Chine Pays de publication: Suisse