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
作者: Xinyao Xia; Qiuhe We; Chunxia Xiao; Yiping Ye; Zhiqiang Li; Cécile Marivingt-Mounir; Jean-François Chollet; Wende Liu; Hanxiang Wu
作者机构:
关键词: Defense response;Duplication;Nitrate transporters;Plant-pathogen interactions;Tissue-specific expression
期刊名称: Genomics
ISSN: 0888-7543
年卷期: 2023 年 115 卷 2 期
页码:
收录情况: SCIE(2023版)
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. © 2022
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