Integrative Metabolome and Transcriptome Analyses Provide Insights into Carotenoid Variation in Different-Colored Peppers
文献类型： 外文期刊
作者： Lv, Junheng 1 ; Zhang, Ruihao 1 ; Mo, Yunrong 1 ; Zhou, Huidan 1 ; Li, Mengjuan 1 ; Wu, Rui 1 ; Cheng, Hong 1 ; Zhang, Mingxian 1 ; Wang, Huasu 1 ; Hua, Wei 1 ; Deng, Qiaoling 1 ; Zhao, Kai 1 ; Deng, Minghua 1 ;
作者机构： 1.Yunnan Agr Univ, Coll Landscape & Hort, Key Lab Vegetable Biol Yunnan Prov, Kunming 650201, Peoples R China
2.Yunnan Acad Agr Sci, Hort Res Inst, Kunming 650205, Peoples R China
关键词： pepper; carotenoid; color formation; metabolome; transcriptome
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）
ISSN： 1661-6596
年卷期： 2023 年 24 卷 23 期
页码：
收录情况： SCI
摘要： Carotenoids are important pigments in pepper fruits. The colors of each pepper are mainly determined by the composition and content of carotenoid. The 'ZY' variety, which has yellow fruit, is a natural mutant derived from a branch mutant of 'ZR' with different colors. ZY and ZR exhibit obvious differences in fruit color, but no other obvious differences in other traits. To investigate the main reasons for the formation of different colored pepper fruits, transcriptome and metabolome analyses were performed in three developmental stages (S1-S3) in two cultivars. The results revealed that these structural genes (PSY1, CRTISO, CCD1, CYP97C1, VDE1, CCS, NCED1 and NCED2) related to carotenoid biosynthesis were expressed differentially in the two cultivars. Capsanthin and capsorubin mainly accumulated in ZR and were almost non-existent in ZY. S2 is the fruit color-changing stage; this may be a critical period for the development of different color formation of ZY and ZR. A combination of transcriptome and metabolome analyses indicated that CCS, NCED2, AAO4, VDE1 and CYP97C1 genes were key to the differences in the total carotenoid content. These new insights into pepper fruit coloration may help to improve fruit breeding strategies.
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