浙江省农业科学院机构知识库

Genome-wide identification, characterization, and expression analysis of the MLO gene family in Cucumis sativus

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文献类型：外文期刊

作者： Zhou, S. J. ¹ ; Jing, Z. ² ; Shi, J. L. ² ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Vegetables, Hangzhou, Zhejiang, Peoples R China

2.Wenzhou Vocat Coll Sci & Technol, Dept Agr & Biotechnol, Southern Zhejiang Key Lab Crop Breeding, Wenzhou, Peoples R China

关键词： MLO;Cucumber;Bioinformatics;Powdery mildew

期刊名称：GENETICS AND MOLECULAR RESEARCH （影响因子：0.764；五年影响因子：0.912 ）

ISSN： 1676-5680

年卷期： 2013 年 12 卷 4 期

页码：

收录情况： SCI

摘要： Mildew resistance locus o (MLO) is a plant-specific seven-transmembrane (TM) gene family. Several studies have revealed that certain members of the MLO gene family mediate powdery mildew susceptibility in three plant species, namely, Arabidopsis, barley, and tomato. The sequenced cucumber genome provides an opportunity to conduct a comprehensive overview of the MLO gene family. Fourteen genes (designated CsMLO01 through CsMLO14) have been identified within the Cucumis sativus genome by using an in silico cloning method with the MLO amino acid sequences of Arabidopsis thaliana and rice as probes. Sequence alignment revealed that numerous features of the gene family, such as TMs, a calmodulin-binding domain, peptide domains I and II, and 30 important amino acid residues for MLO function, are well conserved. Phylogenetic analysis of the MLO genes from cucumber and other plant species reveals seven different clades (I through VII). Three of these clades comprised MLO genes from A. thaliana, rice, maize, and cucumber, suggesting that these genes may have evolved after the divergence of monocots and dicots. In silico mapping showed that these CsMLOs were located on chromosomes 1, 2, 3, 4, 5, and 6 without any obvious clustering, except CsMLO01. To our knowledge, this paper is the first comprehensive report on MLO genes in C. sativus. These findings will facilitate the functional characterization of the MLOs related to powdery mildew susceptibility and assist in the development of disease resistance in cucumber.

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Genome-wide identification, characterization, and expression analysis of the MLO gene family in Cucumis sativus

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Genome-wide identification, characterization, and expression analysis of the MLO gene family in Cucumis sativus

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