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ANALYSIS OF MBOAT FAMILY REVEALS THE DIVERSITY OF MBOAT1 AMPLIFICATION IN SOLANACEAE

文献类型： 外文期刊

作者： Wang, Peng 1 ; Gai, Jiangtao 1 ; Xu, Shitao 3 ; Chen, Zhenxi 4 ; Luo, Zhaopeng 5 ; Cao, Zhenmu 1 ; Jin, Lifeng 5 ; Li, Fe 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Danzhou 571737, Hainan, Peoples R China

2.Minist Agr China, Key Lab Crop Gene Resources & Germplasm Enhanceme, Danzhou 571737, Hainan, Peoples R China

3.Hainan Univ, Coll Appl Sci & Technol, Danzhou 571737, Hainan, Peoples R China

4.Huaqiao Univ, Coll Chem Engn, Xiamen 361021, Fujian, Peoples R China

5.CNTC, Zhengzhou Tobacco Res Inst, Zhengzhou 450001, Henan, Peoples R China

关键词： gene family;MBOAT (membrane-bound O-acyltransferase);MBOAT1;Solanaceae;lipid

期刊名称：ARCHIVES OF BIOLOGICAL SCIENCES （ 影响因子：0.956； 五年影响因子：0.943 ）

ISSN： 0354-4664

年卷期： 2015 年 67 卷 4 期

页码：

收录情况： SCI

摘要： Genes containing an MBOAT (membrane-bound O-acyltransferase) domain form a large gene family in plants whose members play important roles in plant triacylglycerol biosynthesis. Among these genes, most belong to the MBOAT1 subfamily. Here we describe the identification and analysis of MBOAT genes in Solanaceae. Through data mining of four sequenced genomes of Solanaceae, we identified 52 MBOAT members. The MBOAT genes fell into four distinct groups, with MBOAT1 subfamily genes accounting for about half of the total number of genes. Several MBOAT1 genes were present in the genomes of hot pepper, tomato and potato, whereas only one was identified in Nicotiana benthamiana. Most of tomato MBOAT1 genes were localized in chromosomes in the form of clusters, which is the same in potato, indicating that the population of MBOAT1 members was mainly the result of tandem duplication. Some tomato MBOAT1 genes were not expressed, and all MBOAT1 genes were devoid of introns and were significantly shorter than other MBOAT members were. While average pairwise Ka/Ks values were significantly lower within the MBOAT1 subfamily, some MBOAT1 genes showed signs of positive selection.

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