4.7 Article

Systematic analysis of MYB gene family in Acer rubrum and functional characterization of ArMYB89 in regulating anthocyanin biosynthesis

期刊

JOURNAL OF EXPERIMENTAL BOTANY
卷 72, 期 18, 页码 6319-6335

出版社

OXFORD UNIV PRESS
DOI: 10.1093/jxb/erab213

关键词

Acer rubrum; anthocyanin; ArMYB89; gene evolution; MYB gene family; phylogenetic analysis

资金

  1. Anhui Provincial Natural Science Foundation [1908085QC113]
  2. Major Research and Development Projects in Anhui Province [202004a06020019]
  3. National Natural Science Foundation of China [31600543]
  4. Anhui Science and Technology Program Project [1501031085]

向作者/读者索取更多资源

The study identified 393 MYB transcription factors in red maple, with R2R3 being the primary subclass and several R2R3-MYB sub-groups with expanded membership in woody species. The expression of ArMYB89 was significantly up-regulated in red leaves, and it was found to interact with ArSGT1, leading to an increase in anthocyanin content when overexpressed in tobacco plants. This research provides important insights into the functional significance of MYB transcription factors in regulating leaf color in Acer rubrum.
The v-myb avian myeloblastosis viral oncogene homolog (MYB) family of transcription factors is extensively distributed across the plant kingdom. However, the functional significance of red maple (Acer rubrum) MYB transcription factors remains unclear. Our research identified 393 MYB transcription factors in the Acer rubrum genome, and these ArMYB members were unevenly distributed across 34 chromosomes. Among them, R2R3 was the primary MYB sub-class, which was further divided into 21 sub-groups with their Arabidopsis homologs. The evolution of the ArMYB family was also investigated, with the results revealing several R2R3-MYB sub-groups with expanded membership in woody species. Here, we report on the isolation and characterization of ArMYB89 in red maple. Quantitative real-time PCR analysis revealed that ArMYB89 expression was significantly up-regulated in red leaves in contrast to green leaves. Sub-cellular localization experiments indicated that ArMYB89 was localized in the nucleus. Further experiments revealed that ArMYB89 could interact with ArSGT1 in vitro and in vivo. Overexpression of ArMYB89 in tobacco enhances the anthocyanin content of transgenic plants. In conclusion, our results contribute to the elucidation of a theoretical basis for the ArMYB gene family, and provide a foundation for further characterization of the biological roles of MYB genes in the regulation of Acer rubrum leaf color.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据