Genomic survey of NPF and NRT2 transporter gene families in five inbred maize lines and their responses to pathogens infection

文献类型： 外文期刊

第一作者： Xia, Xinyao

作者： Xia, Xinyao;Wei, Qiuhe;Xiao, Chunxia;Ye, Yiping;Li, Zhiqiang;Liu, Wende;Wu, Hanxiang;Marivingt-Mounir, Cecile;Chollet, Jean-Francois

作者机构：

关键词： Nitrate transporters; Plant -pathogen interactions; Tissue -specific expression; Duplication; Defense response

期刊名称：GENOMICS （ 影响因子：4.4； 五年影响因子：4.2 ）

ISSN： 0888-7543

年卷期： 2023 年 115 卷 2 期

页码：

收录情况： SCI

摘要： Besides manipulating nitrate uptake and allocation, nitrate transporters (NRTs) are also known to play crucial roles in pathogen defense and stress response. By blasting with the model NRT genes of poplar and Arabidopsis, a total of 408 gene members were identified from 5 maize inbred lines in which the number of NRTs ranged from 72 to 88. Phylogenetic analysis showed that the NRT genes of maize were classified into NRT1/PTR (NPF), NRT2 and NRT3 subfamilies, respectively. Marked divergence of the duplication patterns of NRT genes were identified, which may be a new basis for classification and identification of maize varieties. In terms of biotic stress, NRT2.5A showed an enhanced expression during the pathogen infection of Colletotrichum graminicola, while NRT1c4C was down-regulated, suggesting that maize NRT transporters may have both positive and negative roles in the disease resistance response. This work will promote the further studies of NRT gene families in maize, as well as be beneficial for further understanding of their potential roles in plant-pathogen interactions.

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