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A Comprehensive Analysis of Carotenoid Cleavage Dioxygenases Genes in Solanum Lycopersicum

文献类型: 外文期刊

作者: Wei, Yanping 1 ; Wan, Hongjian 1 ; Wu, Zhiming; Wang, Rongqing 1 ; Ruan, Meiying 1 ; Ye, Qingjing 1 ; Li, Zhimiao 1 ;

作者机构: 1.Zhejiang Acad Agr Sci, State Key Lab Breeding Base Zhejiang Sustainable, Inst Vegetables, Hangzhou 310021, Zhejiang, Peoples R China

2.Zhejiang Acad Agr Sci, State Key Lab Breeding Base Zhejiang Sustainable, Inst Vegetabl

关键词: Carotenoids;Tandemduplication;Expression analysis;Bioinformatics

期刊名称:PLANT MOLECULAR BIOLOGY REPORTER ( 影响因子:1.595; 五年影响因子:2.042 )

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收录情况: SCI

摘要: Carotenoid cleavage dioxygenases (CCDs) in plant species is one of the most important enzymes in the carotenoid metabolism. In this study, we performed a comprehensive analysis for the CCDs family in Solanum lycopersicum based on the whole tomato genome sequences and explored their expression pattern. At least seven CCD genes were discovered in the tomato genome sequence. Two pairs of them were arranged in tandem. The tandem duplication events could be dating to approximately 14 and 21 Mya, and the tandem duplication genes experienced a purifying selection during the course of evolution after diversification. Additionally, subcellular localization revealed that four members were predicted to be cytoplasm-localized and the three remaining members plastids-localized. Subsequently, a number of cis-regulatory elements, which were involved in light responsiveness, hormone regulation, and abiotic and biotic stresses, were identified in the promoter sequences of SlCCD genes. Phylogenetic tree revealed that the CCDs from Solanaceae crops have a closer genetic relationship. The difference in abundance and distinct expression patterns during the vegetative and reproductive development suggests different functions for these seven SlCCDs. Our findings suggest that SlCCDs family play important roles throughout the whole life course and will lay the foundation for further elaborating the regulatory mechanism of each member in tomato.

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