您好，欢迎访问中国热带农业科学院 机构知识库！
中国热带农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

A comprehensive analysis of MYB aimed at identifying genes involved in the regulation of natural rubber biosynthesis

文献类型： 外文期刊

作者： Fan, Songle 1 ; Lu, Liangruinan 2 ; Fan, Xiaokang 3 ; Liu, Mingyang 1 ; Yang, Hong 1 ; Guo, Bingbing 1 ; Dai, Longjun 1 ; Wang, Lifeng 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Key Lab Biol & Genet Resources Rubber Tree, State Key Lab Incubat Base Cultivat & Physiol Trop, Rubber Res Inst,Minist Agr & Rural Affairs, Haikou 571101, Hainan, Peoples R China

2.Northeast Agr Univ, Coll Hort & Landscape Architecture, Harbin 150030, Heilongjiang, Peoples R China

3.Hainan Univ, Coll Trop Agr & Forestry, Danzhou 571737, Hainan, Peoples R China

关键词： Evolution patterns; Expression pattern; Hevea brasiliensis; Muell. Arg; Laticifer cell; MYB

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：6.2； 五年影响因子：6.2 ）

ISSN： 0926-6690

年卷期： 2025 年 230 卷

页码：

收录情况： SCI

摘要： Hevea brasiliensis, the sole species within the Euphorbiaceae family capable of generating natural rubber (NR), holds considerable economic and industrial significance. A comprehensive analysis of the evolutionary model and functional roles of MYB genes related to NR biosynthesis is of vital importance for the genetic improvement of H. brasiliensis. The evolutionary patterns of MYB genes demonstrated an expansion of ancestral genes in the Crotonoideae subfamily, in contrast to the Euphorbioideae and Acalyphoideae subfamilies. H. brasiliensis possessed the largest number of MYB genes, with whole genome duplication (WGD) or segmental duplication identified as the primary mechanism facilitating expansion of MYB. The number of MYBs in the Euphorbiaceae family had lineage specificity. The gene structure of HbR2R3-MYBs was more conserved, while Hb1R-MYB sequences showed significant variations and more complex gene structures. 209 HbR2R3-MYBs were classified into 29 subfamilies, which encompasses the identification of four new subfamilies. HbMYB88 reached peak expression levels at 12 hours after ethephon treatment and was prominently expressed in latex and stems. Moreover, HbMYB88 displayed low differential expression in secondary laticifers. HbMYB88 was localized in the cell nucleus and belonged to the S25 subfamily, which was associated with cell differentiation. Based on phylogenetic relationships, gene expression patterns, and inter-gene regulatory relationships, it was hypothesized that HbMYB88 was involved in laticifer cell differentiation through the Jasmonic acid (JA) pathway (COI1-JAZMYC), thereby influencing the biosynthesis of NR. Yeast One-Hybrid further proved that HbMYB88 can specifically bind to the promoter of HbMYC-1.

  • 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：中国热带农业科学院

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