Whole-Genome Identification and Comparative Expression Analysis of Anthocyanin Biosynthetic Genes in Brassica napus

文献类型： 外文期刊

第一作者： He, Dan

作者： He, Dan;Zhang, Dawei;Li, Ting;Liu, Lili;Zhou, Dinggang;Wu, Jinfeng;Yan, Mingli;He, Dan;Zhang, Dawei;Li, Ting;Liu, Lili;Zhou, Dinggang;Yan, Mingli;Kang, Lei;Liu, Zhongsong;Wu, Jinfeng

作者机构：

关键词： anthocyanin biosynthetic genes; B; napus; comparative genomic analysis; transcriptome; dynamic accumulation

期刊名称：FRONTIERS IN GENETICS （ 影响因子：4.772； 五年影响因子：4.933 ）

ISSN：

年卷期： 2021 年 12 卷

页码：

收录情况： SCI

摘要： Anthocyanins contribute to most colors of plants and play protective roles in response to abiotic stresses. Brassica napus is widely cultivated worldwide as both an oilseed and a vegetable. However, only several high anthocyanin-containing cultivars have been reported, and the mechanisms of anthocyanin accumulation have not been well-elucidated in B. napus. Here, the phenotype, comparative whole-genome identification, and gene expression analysis were performed to investigate the dynamic change of the anthocyanin content and the gene expression patterns of anthocyanin biosynthetic genes (ABGs) in B. napus. A total of 152 ABGs were identified in the B. napus reference genome. To screen out the critical genes involved in anthocyanin biosynthesis and accumulation, the RNA-seq of young leaves of two B. napus lines with purple leaves (PL) or green leaves (GL), and their F-1 progeny at 41, 91, and 101 days were performed to identify the differentially expressed genes. The comparative expression analysis of these ABGs indicated that the upregulation of TT8 together with its target genes (such as DFR, ANS, UFGT, and TT19) might promote the anthocyanin accumulation in PL at the early developmental stage (41-91 days). While the downregulation of those ABGs and anthocyanin degradation at the late developmental stage (91-101 days) might result in the decrease in anthocyanin accumulation. Our results would enhance the understanding of the regulatory network of anthocyanin dynamic accumulation in B. napus.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序