Genome-wide characterization and analysis of the anthocyanin biosynthetic genes in Brassicaoleracea
文献类型： 外文期刊
第一作者： Han, Fengqing
作者： Han, Fengqing;Yang, Limei;Zhuang, Mu;Zhang, Yangyong;Liu, Yumei;Li, Zhansheng;Wang, Yong;Fang, Zhiyuan;Ji, Jialei;Lv, Honghao;Zhang, Xiaoli
作者机构：
关键词： Cabbage; Anthocyanin biosynthetic genes; Comparative genomics; Expression pattern; Functional characterization
期刊名称：PLANTA （ 影响因子：4.116； 五年影响因子：4.316 ）
ISSN： 0032-0935
年卷期： 2021 年 254 卷 5 期
页码：
收录情况： SCI
摘要： Main conclusion From Brassicaoleracea genome, 88 anthocyanin biosynthetic genes were identified. They expanded via whole-genome or tandem duplication and showed significant expression differentiation. Functional characterization revealed BoMYB113.1 as positive and BoMYBL2.1 as negative regulators responsible for anthocyanin accumulation. Brassicaoleracea produces various health-promoting phytochemicals, including glucosinolates, carotenoids, and vitamins. Despite the anthocyanin biosynthetic pathways in the model plant Arabidopsisthaliana being well characterized, little is known about the genetic basis of anthocyanin biosynthesis in B.oleracea. In this study, we identified 88 B.oleracea anthocyanin biosynthetic genes (BoABGs) representing homologs of 46 Arabidopsis anthocyanin biosynthetic genes (AtABGs). Most anthocyanin biosynthetic genes, having expanded via whole-genome duplication and tandem duplication, retained more than one copy in B.oleracea. Expression analysis revealed diverse expression patterns of BoABGs in different tissues, and BoABG duplications showed significant expression differentiation. Additional expression analysis and functional characterization revealed that the positive regulator BoMYB113.1 and negative regulator BoMYBL2.1 may be key genes responsible for anthocyanin accumulation in red cabbage and ornamental kale by upregulating the expression of structural genes. This study paves the way for a better understanding of anthocyanin biosynthetic genes in B.oleracea and should promote breeding for anthocyanin content.
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