Genome-Wide Identification and an Evolution Analysis of Tonoplast Monosaccharide Transporter (TMT) Genes in Seven Gramineae Crops and Their Expression Profiling in Rice
文献类型： 外文期刊
作者： Zhou, Mingao 1 ; Deng, Xiaoxiao 3 ; Jiang, Yifei 1 ; Zhou, Guoning 4 ; Chen, Jianmin 1 ;
作者机构： 1.Fujian Acad Agr Sci, Inst Biotechnol, Fujian Prov Key Lab Genet Engn Agr, Fuzhou 350003, Peoples R China
2.Wuhan Univ, Coll Life Sci, State Key Lab Hybrid Rice, Wuhan 430072, Peoples R China
3.Chinese Acad Sci, Inst Subtrop Agr, Changsha 410125, Peoples R China
4.South Cent Minzu Univ, Sch Pharmaceut Sci, Wuhan 430074, Peoples R China
关键词： cold stress; Gramineae crops; qRT-PCR analysis; rice; tonoplast monosaccharide transporter (TMT) gene
期刊名称：GENES （ 2022影响因子：3.5； 五年影响因子：3.9 ）
年卷期： 2023 年 14 卷 6 期
收录情况： SCI
摘要： The tonoplast monosaccharide transporter (TMT) family plays essential roles in sugar transport and plant growth. However, there is limited knowledge about the evolutionary dynamics of this important gene family in important Gramineae crops and putative function of rice TMT genes under external stresses. Here, the gene structural characteristics, chromosomal location, evolutionary relationship, and expression patterns of TMT genes were analyzed at a genome-wide scale. We identified six, three, six, six, four, six, and four TMT genes, respectively, in Brachypodium distachyon (Bd), Hordeum vulgare (Hv), Oryza rufipogon (Or), Oryza sativa ssp. japonica (Os), Sorghum bicolor (Sb), Setaria italica (Si), and Zea mays (Zm). All TMT proteins were divided into three clades based on the phylogenetic tree, gene structures, and protein motifs. The transcriptome data and qRT-PCR experiments suggested that each clade members had different expression patterns in various tissues and multiple reproductive tissues. In addition, the microarray datasets of rice indicated that different rice subspecies responded differently to the same intensity of salt or heat stress. The Fst value results indicated that the TMT gene family in rice was under different selection pressures in the process of rice subspecies differentiation and later selection breeding. Our findings pave the way for further insights into the evolutionary patterns of the TMT gene family in the important Gramineae crops and provide important references for characterizing the functions of rice TMT genes.
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