Comprehensive transcriptome and WGCNA analysis reveals the potential function of anthocyanins in low-temperature resistance of a red flower mutant tobacco

文献类型： 外文期刊

第一作者： Zhang, Yinchao

作者： Zhang, Yinchao;Qu, Xiaoling;Li, Xiuchun;Ren, Min;Tong, Ying;Wu, Xiuming;Sun, Yangyang;Wu, Fengyan;Yang, Aiguo;Chen, Shuai

作者机构：

关键词： Nicotiana tabacum L .; Low-temperature; Flower color mutation; Anthocyanin; RNA-seq; Hub genes

期刊名称：GENOMICS （ 影响因子：4.4； 五年影响因子：4.2 ）

ISSN： 0888-7543

年卷期： 2023 年 115 卷 6 期

页码：

收录情况： SCI

摘要： The anthocyanin is a protective substance in various plants, and plays important roles in resisting to lowtemperature. Here, we explored transcriptome analysis of pink flower (as CK) and the natural mutant red flower (as research objects) under low-temperature conditions, and aimed to reveal the potential functions of anthocyanins and anthocyanin-related regulatory factors in resistance to low-temperature. Our results showed that most of the differentially expressed genes (DEGs) encoding key enzymes in the late stage of anthocyanin metabolism in the mutant were significantly up-regulated. Meanwhile, several genes significantly differentially expressed in CK or mutant were obtained by classification and analysis of transcription factors (TFs), phytohormones and osmoregulators. Additionally, WGCNA was carried out to mine hub genes resistanted to lowtemperature stress in flavonoid pathway. Finally, one UFGT family gene, three MYB and one bHLH were obtained as the future hub genes of this study. Combined with the above information, we concluded that the ability of the red flower mutant to grow and develop normally at low-temperatures was the result of a combination of flavonoids and cold resistance genes.

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