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SmCOI1 affects anther dehiscence in a male-sterile Solanum melongena line

文献类型: 外文期刊

作者: Zhang, Shao-Wei 1 ; Yuan, Chao 1 ; An, Li-Yu 1 ; Niu, Yi 1 ; Song, Ming 1 ; Tang, Qing-Lin 1 ; Wei, Da-Yong 1 ; Tian, Shi 1 ;

作者机构: 1.Southwest Univ, Coll Hort & Landscape Architecture, Chongqing 400715, Peoples R China

2.Minist Educ, Key Lab Hort Sci Southern Mt Reg, Chongqing 400715, Peoples R China

3.Chongqing Acad Agr Sci, Inst Vegetables & Flowers, Chongqing 400055, Peoples R China

关键词: 2D-PAGE; anther indehiscence; protein-protein interaction; SmCOI1; Solanum melongena L.

期刊名称:PLANT BIOTECHNOLOGY ( 影响因子:1.4; 五年影响因子:1.5 )

ISSN: 1342-4580

年卷期: 2020 年 37 卷 1 期

页码:

收录情况: SCI

摘要: Anther indehiscence is an important form of functional male sterility that can facilitate the production of hybrid seed; however, the molecular mechanisms of anther indehiscence-based male sterility have not been thoroughly explored in eggplant (Solanum melongena L.). Here, we used two-dimensional gel electrophoresis to compare the protein profiles in the anthers of normally developing (F142) and anther indehiscent (S16) S. melongena plants. Four differentially expressed proteins were identified using matrix-assisted laser desorption/ionization time-of-flight/time-of-flight mass spectrometry. Of these proteins, the transcript accumulation of the eggplant CORONATINE INSENSITIVE1 (SmCOI1) was significantly downregulated in S16 relative to F142. Phylogenetic analysis showed that SmCOI1 has high amino acid sequence similarity and clustered into the same subgroup as its homologs in other members of the Solanaceae. Subcellular localization analysis showed that SmCOI1 localized to the nucleus. Moreover, reverse-transcription quantitative PCR revealed that the jasmonic acid pathway genes SmJAZ1 and SmOPR3 are upregulated in F142 relative to S16. Protein-protein interaction studies identified a direct interaction between SmCOI1 and SmOPR3, but SmCOI1 failed to interact with SmJAZ1. These findings shed light on the regulatory mechanisms of anther dehiscence in eggplant.

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