OsNramp5基因变异影响水稻重要农艺性状的研究进展

李小秀, 吕启明, 袁定阳

Research Progress on the Effects of OsNramp5 Mutation on Important Agronomic Traits in Rice

LI Xiaoxiu, LÜ Qiming, YUAN Dingyang

图1 OsNramp5基因结构及其编码蛋白跨膜结构模式图 OsNramp5蛋白根据预测具有10个跨膜结构，第7及第8外显子编码的氨基酸序列在第4及第5跨膜结构域之间，其中绿色和红色标注的氨基酸残基是在部分农艺性状无显著改变的突变体所携带的突变位点；绿色指OsNramp5基因1 bp碱基插入导致在该位置后的氨基酸序列改变，红色指OsNramp5基因单碱基突变导致该位置的氨基酸残基替换。

Fig. 1. OsNramp5 gene structure and transmembrane structure pattern of the protein. According to the prediction, OsNramp5 protein has 10 transmembrane helices, and the amino acid sequence encoded by exon 7 and exon 8 is between transmembrane domain 4 and 5. The green and red labeled amino acid residues are mutant sites with no significant change in agronomic traits in some previous studies. Green means that the insertion of the 1 bp base of the OsNramp5 gene leads to the change of the amino acid sequence after this position, and red means that the SNP mutation of the OsNramp5 gene leads to the substitution of the amino acid residue at this position.