Computational analysis and expression profiling of NAC transcription factor family involved in biotic stress response in Manihot esculenta

生物 基因 生物逆境 系统发育树 转录因子 遗传学 基因表达谱 发起人 拟南芥 基因表达 系统发育学 非生物胁迫 突变体
作者
Assane Hamidou Abdoulaye,Yuhua Chen,Xiaoyan Zhu,Yang Yiwei,Haiyan Wang,Yinhua Chen
出处
期刊:Plant Biology [Wiley]
被引量:1
标识
DOI:10.1111/plb.13715
摘要

Abstract The Nascent polypeptide‐Associated Complex (NAC) family is among the largest plant‐specific TF families and plays an important role in plant growth, development, and stress responses. NAC TFs have been extensively studied in plants such as rice and Arabidopsis ; however, their characterization, functions, evolution, and expression patterns in Manihot esculenta (cassava) under environmental stress remain largely unexplored. Here, we used bioinformatic analyses and biotic stress responses to investigate the physicochemical properties, chromosome location, phylogeny, gene structure, expression patterns, and cis ‐elements in promoter regions of the NAC TFs in cassava. We identified 119 M. esculenta NAC (MeNAC) gene families, unevenly distributed on 16 chromosomes. We investigated expression patterns of all identified MeNAC TFs under Xanthomonas axonopodis pv. manihotis ( Xam ) infection, strain CHN11, at different time points. Only 20 MeNAC TFs showed expression of significant bacterial resistance. Six MeNACs (MeNAC7, 26, 63, 65, 77, and 113) were selected for functional analysis. qRT‐PCR assays revealed that MeNAC7, 26, 63, 65, 77, and 113 were induced in response to Xam CHN11 infection and may participate in the molecular interaction of cassava and bacterial blight. Interestingly, MeNAC26, MeNAC63, MeNAC65, and MeNAC113 responded to Xam CHN11 infection at 3 h post‐inoculation. Furthermore, we identified 13 stress‐related cis ‐elements in promoter regions of the MeNAC genes that are involved in diverse environmental stress responses. Phylogenetic analysis revealed that MeNAC genes with similar structures and motif distributions were grouped. This study provides valuable insights into the evolution, diversity, and characterization of MeNAC TFs. It lays the groundwork for a better understanding of their biological roles and molecular mechanisms in cassava.
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