Genetic association of ETHYLENE-INSENSITIVE3-like sequence with the sex-determining M locus in cucumber (Cucumis sativus L.)
文献类型： 外文期刊
作者： Liu, Shiqiang 7 ; Xu, Liang 2 ; Jia, Zhiqi 1 ; Xu, Yong 3 ; Yang, Qing 8 ; Fei, Zhangjun 4 ; Lu, Xiangyang 2 ; Chen, Huim 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China
2.Hunan Acad Agr Sci, Hunan Vegetable Res Inst, Changsha 410125, Peoples R China
3.Beijing Vegetable Res Ctr, Beijing 100089, Peoples R China
4.Cornell Univ, Boyce Thompson Inst Plant Res, Ithaca, NY 14853 USA
5.Cornell Univ, USDA Plant Soil & Nutr Lab, Ithaca, NY 14853 USA
6.Hunan Agr Univ, Lab Biochem & Fermentat, Changsha 410128, Hunan, Peoples R China
7.Nanjing Agr Univ, Coll Life Sci, Dept Biochem & Mol Biol, Nanjing 210095, Peoples R China
8.Nanjing Ag
期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.699； 五年影响因子：5.565 ）
ISSN： 0040-5752
年卷期： 2008 年 117 卷 6 期
页码：
收录情况： SCI
摘要： Cucumber (Cucumis sativus L.) has served as the model system for sex expression in flowering plants and its sex type is predominantly controlled by two genetic loci, F and M. Ethylene is the major plant hormone that regulates sex expression in cucumber. The current model predicts that ethylene serves as both a promoter of femaleness via the F locus and an inhibitor of the male sex via the M locus. In support of this model, genetic, genomic, and transcript analyses indicate that the F gene encodes a key enzyme in ethylene biosynthesis. In this study, we discovered that the M locus co-segregates with an ETHYLENE-INSENSITIVE3 (EIN3)-like genomic sequence in an F(2) population of 96 individuals. This genetic association agrees with the prediction that the M locus is involved in ethylene signaling, thus providing another line of evidence in favor of the model. In addition, we generated an amplified fragment length polymorphism (AFLP((R))) map of the M locus, which was delimited into a genetic interval of 2.5 cM. The genetic association and the local map will assist the molecular isolation of the M gene using the combination of positional cloning and candidate gene approach.
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