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Genome-wide identification and resistance expression analysis of the NBS gene family in Triticum urartu

文献类型： 外文期刊

作者： Liu, Jing 1 ; Qiao, Linyi 1 ; Zhang, Xiaojun 2 ; Li, Xin 2 ; Zhan, Haixian 2 ; Guo, Huijuan 2 ; Zheng, Jun 2 ; Chang, Zhi 1 ;

作者机构： 1.Shanxi Univ, Coll Grad, Taiyuan 030006, Peoples R China

2.Shanxi Acad Agr Sci, Inst Crop Sci, Shanxi Key Lab Crop Genet & Mol Improvement, Taiyuan 030031, Peoples R China

关键词： T. urartu;Computational biology;Genome-wide;NBS genes;Phylogenetic analysis;Resistance expression

期刊名称：GENES & GENOMICS （ 影响因子：1.839； 五年影响因子：1.329 ）

ISSN：

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收录情况： SCI

摘要： As the largest class of resistant genes, the nucleotide binding site (NBS) has been studied extensively at a genome-wide level in rice, sorghum, maize, barley and hexaploid wheat. However, no such comprehensive analysis has been conducted of the NBS gene family in Triticum urartu, the donor of the A genome to the common wheat. Using a bioinformatics method, 463 NBS genes were isolated from the whole genome of T. urartu, of which 461 had location information. The expansion pattern and evolution of the 461 NBS candidate proteins were analyzed, and 118 of them were duplicated. By calculating the lengths of the copies, it was inferred that the NBS resistance gene family of T. urartu has experienced at least two duplication events. Expression analysis based on RNA-seq data found that 6 genes were differentially expressed among Tu38, Tu138 and Tu158 in response to Blumeria graminis f.sp.tritici (Bgt). Following Bgt infection, the expression levels of these genes were up-regulated. These results provide critical references for further identification and analysis of NBS family genes with important functions.

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