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Genome-scale identification of MLO domain-containing genes in soybean (Glycine max L. Merr.)

文献类型： 外文期刊

作者： Shen, Qi 1 ; Zhao, Jinming 1 ; Du, Caifu 2 ; Xiang, Yang 1 ; Cao, Jinxuan 3 ; Qin, Xinrong 2 ;

作者机构： 1.Nanjing Agr Univ, Natl Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Jiangsu, Peoples R China

2.Guizhou Acad Agr Sci, Guizhou Rapeseed Inst, Guiyang 550008, Peoples R China

3.Ningbo Univ, Coll Life Sci & Biotechnol, Ningbo 315211, Zhejiang, Peoples R China

关键词： soybean;MLO domain;gene family;abiotic stress;phytohormone

期刊名称：GENES & GENETIC SYSTEMS （ 影响因子：1.517； 五年影响因子：1.434 ）

ISSN： 1341-7568

年卷期： 2012 年 87 卷 2 期

页码：

收录情况： SCI

摘要： In plants, powdery-mildew-resistance locus o (Mlo) genes encode proteins that are calmodulin-binding proteins involved in a variety of cellular processes. However, systematic characterization of this gene family in soybean (Glycine max L. Merr.) has not been yet reported. In this study, we identified MLO domain-contained members in soybean and examined their expression under phytohormone treatment and abiotic stress conditions. A total of 20 soybean Mlo genes were identified (GmMlo1-20), which are distributed on 13 chromosomes, and display diverse exon-intron structures. Phylogenetic analysis indicated that the Mlo family can be classified into four subfamilies. Sequence comparison was used to reveal the conserved calmodulin-binding domain (CaMBD) in GmMLO proteins. The expression of GmMlo genes was influenced by various phytohormone treatments and abiotic stresses, suggesting that these Mlo genes have various roles in the response of soybean to environmental stimuli. Promoter sequence analysis revealed an overabundance of stress and/or phytohormone-related cis-elements in GmMlo genes. These data provide important clues for elucidating the functions of genes of the Mlo gene family.

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