Identification and expression analysis of four 14-3-3 genes during fruit ripening in banana (Musa acuminata L. AAA group, cv. Brazilian)
文献类型: 外文期刊
第一作者: Li, Mei-Ying
作者: Li, Mei-Ying;Xu, Bi-Yu;Liu, Ju-Hua;Yang, Xiao-Liang;Zhang, Jian-Bin;Jia, Cai-Hong;Ren, Li-Cheng;Jin, Zhi-Qiang;Jin, Zhi-Qiang
作者机构:
关键词: Banana (Musa acuminata L. AAA group cv. Brazilian);14-3-3 proteins;Ethylene biosynthesis;Postharvest ripening
期刊名称:PLANT CELL REPORTS ( 影响因子:4.57; 五年影响因子:4.463 )
ISSN: 0721-7714
年卷期: 2012 年 31 卷 2 期
页码:
收录情况: SCI
摘要: To investigate the regulation of 14-3-3 proteins in banana (Musa acuminata L. AAA group, cv. Brazilian) fruit postharvest ripening, four cDNAs encoding 14-3-3 proteins were isolated from banana and designated as Ma-14-3-3a, Ma-14-3-3c, Ma-14-3-3e, and Ma-14-3-3i, respectively. Amino acid sequence alignment showed that the four 14-3-3 proteins shared a highly conserved core structure and variable C-terminal as well as N-terminal regions with 14-3-3 proteins from other plant species. Phylogenetic analysis revealed that the four 14-3-3 genes belong to the non-epsilon groups. They were differentially and specifically expressed in various tissues. Real-time RT-PCR analysis indicated that these four genes function differentially during banana fruit postharvest ripening. Three genes, Ma-14-3-3a, Ma-14-3-3c, and Ma-14-3-3e, were significantly induced by exogenous ethylene treatment. However, gene function differed in naturally ripened fruits. Ethylene could induce Ma-14-3-3c expression during postharvest ripening, but expression patterns of Ma-14-3-3a and Ma-14-3-3e suggest that these two genes appear to be involved in regulating ethylene biosynthesis during fruit ripening. No obvious relationship emerged between Ma-14-3-3i expression in naturally ripened and 1-MCP (1-methylcyclopropene)-treated fruit groups during fruit ripening. These results indicate that the 14-3-3 proteins might be involved in various regulatory processes of banana fruit ripening. Further studies will mainly focus on revealing the detailed biological mechanisms of these four 14-3-3 genes in regulating banana fruit postharvest ripening.
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