Genome-Wide Investigation of the NAC Transcription Factor Family in Apocynum venetum Revealed Their Synergistic Roles in Abiotic Stress Response and Trehalose Metabolism
文献类型: 外文期刊
第一作者: Huang, Xiaoyu
作者: Huang, Xiaoyu;Qiu, Xiaojun;Wang, Yue;Abubakar, Aminu Shehu;Chen, Ping;Chen, Jikang;Chen, Kunmei;Yu, Chunming;Wang, Xiaofei;Gao, Gang;Zhu, Aiguo;Abubakar, Aminu Shehu;Gao, Gang;Zhu, Aiguo;Gao, Gang;Zhu, Aiguo
作者机构:
关键词: NAC transcription factor; drought stress; salt stress; trehalose metabolism pathway
期刊名称:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES ( 影响因子:5.6; 五年影响因子:6.2 )
ISSN:
年卷期: 2023 年 24 卷 5 期
页码:
收录情况: SCI
摘要: NAC (NAM, ATAF1/2, and CUC2) transcription factors (TFs) are one of the most prominent plant-specific TF families and play essential roles in plant growth, development and adaptation to abiotic stress. Although the NAC gene family has been extensively characterized in many species, systematic analysis is still relatively lacking in Apocynum venetum (A. venetum). In this study, 74 AvNAC proteins were identified from the A. venetum genome and were classified into 16 subgroups. This classification was consistently supported by their gene structures, conserved motifs and subcellular localizations. Nucleotide substitution analysis (Ka/Ks) showed the AvNACs to be under the influence of strong purifying selection, and segmental duplication events were found to play the dominant roles in the AvNAC TF family expansion. Cis-elements analysis demonstrated that the light-, stress-, and phytohormone-responsive elements being dominant in the AvNAC promoters, and potential TFs including Dof, BBR-BPC, ERF and MIKC_MADS were visualized in the TF regulatory network. Among these AvNACs, AvNAC58 and AvNAC69 exhibited significant differential expression in response to drought and salt stresses. The protein interaction prediction further confirmed their potential roles in the trehalose metabolism pathway with respect to drought and salt resistance. This study provides a reference for further understanding the functional characteristics of NAC genes in the stress-response mechanism and development of A. venetum.
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