Genome-wide identification and expression analysis of carotenoid cleavage oxygenase genes in Litchi (Litchi chinensis Sonn.)
文献类型： 外文期刊
作者： Yue, Xiao-Qi 1 ; Zhang, Yue 1 ; Yang, Cheng-Kun 1 ; Li, Jian-Guo 3 ; Rui, Xia 3 ; Ding, Feng 4 ; Hu, Fu-Chu 5 ; Wang, Xiang-He 5 ; Ma, Wu-Qiang 1 ; Zhou, Kai-Bing 1 ;
作者机构： 1.Hainan Univ, Hort Coll, Engn Res Ctr Selecting & Breeding New Trop Crops, Minist Educ, Haikou 570311, Hainan, Peoples R China
2.Hainan Univ, Hort Coll, Key Lab Qual Regulat Trop Hort Crops Hainan Prov, Haikou 570311, Hainan, Peoples R China
3.South China Agr Univ, Guangdong Litchi Engn Res Ctr, Coll Hort, Guangzhou 510642, Peoples R China
4.Guangxi Acad Agr Sci, Guangxi Crop Genet Improvement & Biotechnol Key L, Nanning 530007, Guangxi, Peoples R China
5.Hainan Acad Agr Sci, Key Lab Trop Fruit Tree Biol Hainan Prov, Haikou 571100, Hainan, Peoples R China
关键词： Litchi; CCO genes; Expression analysis; Flower control; Fruit development and maturation; Postharvest storage
期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.26； 五年影响因子：5.761 ）
ISSN： 1471-2229
年卷期： 2022 年 22 卷 1 期
页码：
收录情况： SCI
摘要： Background Carotenoid cleavage oxygenases (CCOs) include the carotenoid cleavage dioxygenase (CCD) and 9-cis-epoxycarotenoid (NCED), which can catalize carotenoid to form various apocarotenoids and their derivatives, has been found that play important role in the plant world. But little information of CCO gene family has been reported in litchi (Litchi chinensis Sonn.) till date. Results In this study, a total of 15 LcCCO genes in litchi were identified based on genome wide lever. Phylogeny analysis showed that LcCCO genes could be classified into six subfamilies (CCD1, CCD4, CCD7, CCD8, CCD-like, and NCED), which gene structure, domain and motifs exhibited similar distribution patterns in the same subfamilies. MiRNA target site prediction found that there were 32 miRNA target sites in 13 (86.7%) LcCCO genes. Cis-elements analysis showed that the largest groups of elements were light response related, following was plant hormones, stress and plant development related. Expression pattern analysis revealed that LcCCD4, LcNCED1, and LcNCED2 might be involving with peel coloration, LcCCDlike-b might be an important factor deciding fruit flavor, LcNCED2 and LcNCED3 might be related to flower control, LcNCED1 and LcNCED2 might function in fruitlet abscission, LcCCD4a1, LcCCD4a2, LcCCD1, LcCCD4, LcNCED1, and LcNCED2 might participate in postharvest storage of litchi. Conclusion Herein, Genome-wide analysis of the LcCCO genes was conducted in litchi to investigate their structure features and potential functions. These valuable and expectable information of LcCCO genes supplying in this study will offer further more possibility to promote quality improvement and breeding of litchi and further function investigation of this gene family in plant.
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