您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

A complex regulatory network underlies de novo root regeneration in red maple (Acer rubrum)

文献类型： 外文期刊

作者： Li, Mengyi 1 ; Cheng, Yunhe 4 ; Li, Yanlin 1 ; Gan, Dexin 1 ; Yu, Xiaoying 1 ;

作者机构： 1.Hunan Agr Univ, Coll Hort & Landscape, Changsha 410128, Peoples R China

2.Hunan Agr Univ, Hunan Midsubtrop Qual Plant Breeding & Utilizat E, Changsha 410128, Peoples R China

3.Engn Res Ctr Hort Crop Germplasm Creat & New Vari, Changsha 410128, Peoples R China

4.Beijing Acad Forestry & Pomol Sci, Beijing 100093, Peoples R China

关键词： cuttings; de novo root regeneration; gene regulatory network; red maple (Acer rubrum L.); transcriptome profiling

期刊名称：BOTANY （ 影响因子：1.323； 五年影响因子：1.568 ）

ISSN： 1916-2790

年卷期： 2021 年 99 卷 9 期

页码：

收录情况： SCI

摘要： Red maple (Acer rubrum L.) is ornamentally and medicinally valuable; however, its wider application is restricted by the difficulty of rooting from cuttings. We analyzed paraffin sections of roots regenerating using RNA-Seq to decipher the mechanisms underlying de novo root regeneration (DNRR) in red maple cuttings. This work contributes to improving the rooting rate and shortening the rooting time. We identified four stages during DNRR: 0 days after induction (DAI), no new cell formation; 30 DAI, root meristem organization; 36 DAI, root primordium formation; and 45 DAI, root elongation growth. We identified 37 959 unigenes by de novo assembly, with 25 477 (67.12%) functionally annotated. Furthermore, we identified 1285 differentially expressed genes (DEGs) between adjacent stages. From Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment networks, we found evidence that plant hormones are significant in DNRR of red maple cuttings. Specifically, 149 DEGs functioned in hormone signal transduction pathways, particularly those involving ethylene, auxin, and jasmonic acid (JA). We propose a complex regulatory network model of DNRR in red maple, where wounding induces root regeneration through pathways of JA and auxin signaling. The transcription factors ETHYLENE RESPONSE FACTOR 109 (ERF109) and ERF115 integrate JA signal and participate in DNRR directly by regulating SCARECROW activation and indirectly by promoting auxin biosynthesis.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台