The role of multiple C2 domain and transmembrane region proteins in mediating tomato development
文献类型： 外文期刊
作者： Li, Siyi 1 ; Ling, Ribin 2 ; Wu, Xuexia 3 ; Liu, Lu 2 ; Zhang, Hui 3 ; Xuan, Lijie 2 ;
作者机构： 1.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
2.Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai Collaborat Innovat Ctr Agriseeds, Joint Ctr Single Cell Biol, Shanghai 200240, Peoples R China
3.Shanghai Acad Agr Sci, Hort Res Inst, Shanghai Key Lab Protected Hort Technol, Shanghai 201403, Peoples R China
关键词： Tomato; SlMCTP; Phylogenetic analysis; Hormone response; Main stem apex development
期刊名称：PLANT SCIENCE （ 影响因子：4.1； 五年影响因子：5.1 ）
ISSN： 0168-9452
年卷期： 2025 年 356 卷
页码：
收录情况： SCI
摘要： Multiple C2 domain and transmembrane region proteins (MCTPs) are an evolutionarily conserved family involved in protein trafficking and signal transduction. Although several investigations have demonstrated that MCTPs play crucial roles in plant growth and development, their specific biological functions within tomatoes (Solanum lycopersicum L.) remain predominantly mysterious. In this study, we identify and characterize 14 SlMCTP genes derived from tomatoes. Chromosome mapping, gene structure, phylogenetic connections, and subcellular localization are presented herein. Meanwhile, the varied expression patterns of SlMCTPs within different tissues and under diverse hormonal and NaCl treatment conditions are revealed. Moreover, we find that SlMCTP10, SlMCTP11, and SlMCTP12, which belong to the same clade, display high expression levels at the main stem apex, suggesting their potential functions in shoot development. Furthermore, we knock out the SlMCTP10 gene in tomato using CRISPR-Cas9. The Slmctp10 seedlings exhibit defects in shoot meristem development, manifested by abnormal cotyledons and shorter internodes. Together, our findings offer fundamental insights into the SlMCTP family and uncover the role of SlMCTP proteins in regulating shoot meristem development in tomato plants.
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