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CLAVATA1-type receptor-like kinase CsCLAVATA1 is a putative candidate gene for dwarf mutation in cucumber

文献类型： 外文期刊

作者： Xu, Lilin 2 ; Wang, Chao 1 ; Cao, Wen 1 ; Zhou, Shengmao 3 ; Wu, Tao 1 ;

作者机构： 1.Northeast Agr Univ, Key Lab Biol & Genet Improvement Hort Crops North, Minist Agr, 600 Changjiang Rd, Harbin 150030, Heilongjiang, Peoples R China

2.Northeast Agr Univ, Coll Hort & Landscape Architecture, 600 Changjiang Rd, Harbin 150030, Heilongjiang, Peoples R China

3.Guangxi Acad Agr Sci, 174 Daxuedong Rd, Nanning 530007, Peoples R China

关键词： Cucumber; Dwarf; Mutant; Ethyl methyl sulfonate; MutMap; CLAVATA1-type receptor-like kinase

期刊名称：MOLECULAR GENETICS AND GENOMICS （ 影响因子：3.291； 五年影响因子：3.257 ）

ISSN： 1617-4615

年卷期： 2018 年 293 卷 6 期

页码：

收录情况： SCI

摘要： Dwarf mutations have played vital roles in elucidating the regulatory molecular mechanisms of plant height. In this study, we identified a mutant named Csdw, whose mutagenesis was induced by ethyl methyl sulfonate in cucumber, and this mutant exhibited a dwarf phenotype with a reduced internode length because of the reduction of cell division in the main stem. The dwarf phenotype of Csdw could be partially rescued through GA(3) application, and endogenous GA(3) levels from the stem of Csdw decreased distinctly. Genetic analysis showed that Csdw was attributed to a recessive gene. The MutMap and Kompetitive Allele Specific PCR genotyping results revealed that Csa3G872760 (CsCLAVATA1), encoding a CLAVATA1-type receptor-like kinase, was a putative candidate gene for dwarf mutation in cucumber. The expression of CsCLAVATA1 in the stem of Csdw was lower than that of wild-type plants. Therefore, CsCLAVATA1 could regulate the dwarf phenotype in cucumber.

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