Comparative Transcriptome Analysis Reveals Gene Expression Differences in Eggplant (Solanum melongena L.) Fruits with Different Brightness
文献类型： 外文期刊
作者： Zhang, Aidong 1 ; Huang, Qianru 2 ; Li, Jianyong 3 ; Zhu, Weimin 1 ; Liu, Xiaohui 4 ; Wu, Xuexia 1 ; Zha, Dingshi 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Shanghai Key Lab Protected Hort Technol, Inst Hort Res, Shanghai 201403, Peoples R China
2.Shanghai Normal Univ, Coll Life Sci, Shanghai 201418, Peoples R China
3.Shanghai Agr Technol Extens Serv Ctr, Shanghai 201103, Peoples R China
4.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
关键词： eggplant; brightness; wax; transcriptome analysis; KCS
期刊名称：FOODS （ 影响因子：5.561； 五年影响因子：5.94 ）
ISSN：
年卷期： 2022 年 11 卷 16 期
页码：
收录情况： SCI
摘要： Fruit brightness is an important quality trait that affects the market value of eggplant. However, few studies have been conducted on eggplant brightness. In this study, we aimed to identify genes related to this trait in three varieties of eggplant with different fruit brightness between 14 and 22 days after pollination. Using RNA-Seq Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses, we found that wax- and cutin-related pathways and differentially expressed genes displayed significant differences among different development stages and varieties. Scanning electron microscopy revealed that the wax layer was thinner in '30-1' and 'QPCQ' than in '22-1'. Gas chromatography-mass spectrometry analysis revealed that wax content was significantly lower in '30-1' than in '22-1', which indicated that wax may be an important factor determining fruit brightness. We further identified and analyzed the KCS gene family, which encodes the rate-limiting enzyme of FA elongation in wax synthesis. The results provide an insight into the molecular mechanisms of fruit brightness in eggplants and further eggplant breeding programs.
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