Identification and Expression Analysis of NAC Transcription Factors Related to Rust Resistance in Foxtail Millet

文献类型： 外文期刊

第一作者： Gong, Keke

作者： Gong, Keke;Liu, Jia;Zhang, Mengya;Dong, Zhiping;Ma, Jifang;Xuan, Peixue;Bai, Hui;Li, Zhiyong;Gong, Keke;Liu, Jia;Zhang, Mengya;Dong, Zhiping;Ma, Jifang;Xuan, Peixue;Bai, Hui;Li, Zhiyong;Gong, Keke;Liu, Jia;Zhang, Mengya;Dong, Zhiping;Ma, Jifang;Xuan, Peixue;Bai, Hui;Li, Zhiyong

作者机构：

关键词： Setaria italica; NAC; Uromyces setariae-italicae; transcription factor; rust disease resistance; qRT-PCR

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2025 年 14 卷 10 期

页码：

收录情况： SCI

摘要： Foxtail millet (Setaria italica), a vital cereal crop in China, serves as both a staple food and forage source but is threatened by rust disease caused by Uromyces setariae-italicae (Usi), leading to severe yield and quality losses. The NAM, ATAF1/2, and CUC2 (NAC) transcription factor family represents one of the largest plant-specific regulatory gene families, playing pivotal roles in development and stress responses. However, the functional relevance of NAC genes in foxtail millet's defense against this pathogen remains unexplored. Here, we systematically analyzed 33 SiNAC genes from the foxtail millet genome. Phylogenetic analysis classified these genes into 11 subgroups, while chromosomal mapping localized them to nine chromosomes unevenly. Promoter analysis identified stress- and plant hormone-related cis-elements, suggesting functional diversity. Expression profiling analysis showed that most SiNAC genes exhibit tissue-specific expression patterns. Quantitative real-time PCR (qRT-PCR) results indicated that 30 genes responded to Usi infection, with 17 showing a strong association with rust resistance. Three resistance-associated genes demonstrated transactivation activity and nuclear localization, indicating their regulatory function in defense responses. This study provides both mechanistic insights into SiNAC-mediated rust resistance and potential targets for molecular breeding in foxtail millet.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序