Genome-wide identification and characterization of the NF-Y gene family in grape (vitis vinifera L.)

BMC Genomics

Research Article

Shaohua Li¹  Zhenchang Liang¹  Zhan Zhang²  Chong Ren²  Yi Wang² 

[1] Beijing Key Laboratory of Grape Science and Enology and Key Laboratory of Plant Resource, Institute of Botany, the Chinese Academy of Sciences, 100093, Beijing, People’s Republic of China;Beijing Key Laboratory of Grape Science and Enology and Key Laboratory of Plant Resource, Institute of Botany, the Chinese Academy of Sciences, 100093, Beijing, People’s Republic of China;University of Chinese Academy of Sciences, 100049, Beijing, People’s Republic of China;

关键词: Vitis vinifera;    NF-Y transcription factor;    Phylogenetic analysis;    Expression profiles;    Quantitative real-time PCR;   

DOI  :  10.1186/s12864-016-2989-3

 received in 2016-05-09, accepted in 2016-08-02,  发布年份 2016

来源: Springer

【 摘 要 】

BackgroundNuclear factor Y (NF-Y) transcription factor is composed of three distinct subunits: NF-YA, NF-YB and NF-YC. Many members of NF-Y family have been reported to be key regulators in plant development, phytohormone signaling and drought tolerance. However, the function of the NF-Y family is less known in grape (Vitis vinifera L.).ResultsA total of 34 grape NF-Y genes that distributed unevenly on grape (V. vinifera) chromosomes were identified in this study. Phylogenetic analysis was performed to predict functional similarities between Arabidopsis thaliana and grape NF-Y genes. Comparison of the structures of grape NF-Y genes (VvNF-Ys) revealed their functional conservation and alteration. Furthermore, we investigated the expression profiles of VvNF-Ys in response to various stresses, phytohormone treatments, and in leaves and grape berries with various sugar contents at different developmental stages. The relationship between VvNF-Y transcript levels and sugar content was examined to select candidates for exogenous sugar treatments. Quantitative real-time PCR (qPCR) indicated that many VvNF-Ys responded to different sugar stimuli with variations in transcript abundance. qPCR and publicly available microarray data suggest that VvNF-Ys exhibit distinct expression patterns in different grape organs and developmental stages, and a number of VvNF-Ys may participate in responses to multiple abiotic and biotic stresses, phytohormone treatments and sugar accumulation or metabolism.ConclusionsIn this study, we characterized 34 VvNF-Ys based on their distributions on chromosomes, gene structures, phylogenetic relationship with Arabidopsis NF-Y genes, and their expression patterns. The potential roles of VvNF-Ys in sugar accumulation or metabolism were also investigated. Altogether, the data provide significant insights on VvNF-Ys, and lay foundations for further functional studies of NF-Y genes in grape.

【 授权许可】

CC BY   
© The Author(s). 2016