您好,欢迎访问河北省农林科学院 机构知识库!

GhWRKY40 Interacts with an Asparaginase GhAPD6 Involved in Fiber Development in Upland Cotton (Gossypium hirsutum L.)

文献类型: 外文期刊

作者: Zhang, Sujun 1 ; Cai, Xiao 1 ; Wei, Jingyan 3 ; Wang, Haitao 1 ; Liu, Cunjing 1 ; Li, Xinghe 1 ; Tang, Liyuan 1 ; Zhou, Xiaodong 1 ; Zhang, Jianhong 1 ;

作者机构: 1.Hebei Acad Agr & Forestry Sci, Inst Cotton, Shijiazhuang 050051, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Biol & Genet Improvement Cotton Huanghuaih, Shijiazhuang 050051, Peoples R China

3.Chinese Acad Agr Sci, Inst Cotton Res, Natl Key Lab Cotton Biobreeding & Integrated Utili, Anyang 455000, Peoples R China

关键词: fiber quality; GhWRKY40; aspartyl protease; yeast two-hybrid assay; split-luciferase complementation assay; Gossypium hirsutum

期刊名称:GENES ( 影响因子:2.8; 五年影响因子:3.2 )

ISSN:

年卷期: 2024 年 15 卷 8 期

页码:

收录情况: SCI

摘要: Fiber quality improvement is a primary goal in cotton breeding. Identification of fiber quality-related genes and understanding the underlying molecular mechanisms are essential prerequisites. Previously, studies determined that silencing the gene GhWRKY40 resulted in longer cotton fibers; however, both the underlying mechanisms and whether this transcription factor is additionally involved in the regulation of cotton fiber strength/fineness are unknown. In the current study, we verified that GhWRKY40 influences the fiber strength, fiber fineness, and fiber surface structure by using virus-induced gene silencing (VIGS). Potential proteins that may interact with the nucleus-localized GhWRKY40 were screened in a yeast two-hybrid (Y2H) nuclear-system cDNA library constructed from fibers at 0, 10, and 25 days post-anthesis (DPA) in two near-isogenic lines differing in fiber length and strength. An aspartyl protease/asparaginase-related protein, GhAP(D6), was identified and confirmed by Y2H and split-luciferase complementation assays. The expression of GhAP(D6) was approximately 30-fold higher in the GhWRKY40-VIGS lines at 10 DPA and aspartyl protease activity was significantly upregulated in the GhWRKY40-VIGS lines at 10-20 DPA. This study suggested that GhWRKY40 may interact with GhAP(D6) to regulate fiber development in cotton. The results provide a theoretical reference for the selection and breeding of high-quality cotton fibers assisted by molecular technology.

  • 相关文献
作者其他论文 更多>>