Knockdown of SlEMS1 causes male sterility in tomato  

作　　者：Yu He Juan Wang Jingang Hu Jinhui Zheng Ziyi Guo Qinghui Yu Qinghua Shi Yan Zhang 

机构地区：[1]College of Horticulture Science and Engineering,Shandong Agricultural University,Taian,Shandong 271018,China [2]Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables,Institute of Horticultural Crops,Xinjiang Academy of Agricultural Sciences,Urumchi,Xinjiang 830091,China [3]Zhengzhou Academy of Agricultural Science and Technology,Zhengzhou,Henan 450015,China

出　　处：《Horticultural Plant Journal》2025年第2期939-942,共4页园艺学报(英文版)

基　　金：supported by the National Natural Science Foundation of China(Grant No.32372723,U1906205);Key Research and Development Program of Shandong Province(Grant No.2023CXPT018,2022TZXD0025);Natural Science Foundation of Shandong Province(Grant No.ZR2023MC206);Key Research and Development Task Special Project of Xinjiang(Grant No.2022B02002)。

摘　　要：Tomato(Solanum lycopersicum)is one of the most consumed vegetable crops around the world,and its breeding is performed by exploiting heterosis in F1hybrid crosses.Male sterility is one of the most desirable agronomic traits in tomato hybrid seed production,as it can reduce the cost of artificial emasculation and ensure high varietal purity.Abnormal pollen development is a critical factor for male sterility.To date,several genes have been identified to be involved in pollen development,in which EXCESS MICROSPOROCYTES1(EMS1)controls the formation of tapetum,which is necessary for pollen production(Chang et al.,2011).EMS1 encodes a leucine-rich repeat receptor-like kinase that is specifically expressed in the tapetum.In Arabidopsis,the anthers in the ems1mutant lack tapetal cells but can produce excess microsporocytes,which do not undergo cytokinesis,leading to microsporogenesis failure and male sterility(Zhao et al.,2002).However,there is no evidence of the role of EMS1 in tomato pollen development,which limits a comprehensive understanding of the molecular mechanism underlying tomato male fertility.

关 键 词：BREEDING CROPS COMPREHENSIVE 

分 类 号：S641.2[农业科学—蔬菜学]