文献类型：期刊文献

英文题名：Transcriptome and Pigment Analyses Provide Insights into Carotenoids and Flavonoids Biosynthesis in Camellia nitidissima Stamens

作者：Feng, Yi[1,2] Zhao, Kunkun[3] Li, Jiyuan[1] Wang, Minyan[1] Yin, Hengfu[1] Fan, Zhengqi[1] Li, Xinlei[1] Liu, Weixin[1]

第一作者：Feng, Yi

通信作者：Liu, WX[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Key Lab Tree Breeding Zhejiang Prov, Hangzhou 311400, Peoples R China;[2]Nanjing Forestry Univ, Coll Forestry, Nanjing 210037, Peoples R China;[3]Anhui Sci & Technol Univ, Coll Architecture, Bengbu 233000, Peoples R China

年份：2024

卷号：10

期号：4

外文期刊名：HORTICULTURAE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001211232800001)】；

基金：No Statement Available

语种：英文

外文关键词：Camellia nitidissima; stamen color; transcriptome; flavonoid; carotenoid

摘要：Camellia nitidissima is famous for its golden flowers. Its flowers are rich in secondary metabolites, and they have ornamental, medicinal, and edible value. Pigment composition and regulation has been studied in the golden petals, but there has been little research on pigment composition or the molecular mechanism underlying yellow stamens in C. nitidissima. To explore the molecular mechanism of yellow stamen formation, three developmental stages (S0, S1, and S2) were used for transcriptome and pigment analyses. Pigment analysis showed that the flavonoid content increased sharply from the S0 to S1 stage and decreased from the S1 to S2 stage, and the carotenoid content increased sharply during yellow stamen formation (from the S1 to S2 stage). RNA-seq analysis showed that a total of 20,483 differentially expressed genes (DEGs) were identified. KEGG and heatmap analyses showed that flavonoid and carotenoid biosynthesis pathways were enriched, and we identified 14 structural genes involved in flavonoid biosynthesis and 13 genes involved in carotenoid biosynthesis and degradation. In addition, the expression of carotenoid- and flavonoid-related genes was consistent with carotenoid and flavonoid content. In addition, correlation network analysis indicated that the WARYK, MYB, bHLH, and AP2/ERF transcription factor families were screened for involvement in the biosynthesis of flavonoids and carotenoids. In this study, we describe the pathway associated with color formation in the stamens of C. nitidissima.