文献类型： 外文期刊

作者： Chen, Yang ¹ ; Li, Aixue ¹ ; Yun, Ping ³ ; Chen, Quan ¹ ; Pan, Dayu ¹ ; Guo, Rui ¹ ; Zhang, Han ¹ ; Ahmed, Hassan Ahmed Ibraheem ⁵ ; Hu, Haiying ⁶ ; Peng, Yuanying ⁷ ; Wang, Cheng ¹ ; Dong, Hongtu ¹ ; Qiu, Chaoyang ¹ ; Shabala, Lana ³ ; Shabala, Sergey ³ ; Luo, Bin ¹ ; Hou, Peichen ¹ ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Informat Technol Res Ctr, Beijing 100083, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Intelligent Equipment Res Ctr, Beijing 100097, Peoples R China

3.Univ Western Australia, Sch Biol Sci, Crawley, WA 6009, Australia

4.Foshan Univ, Int Res Ctr Environm Membrane Biol, Foshan 528000, Peoples R China

5.Port Said Univ, Fac Sci, Dept Bot, Port Said 42526, Egypt

6.Ningxia Univ, Coll Forestry & Prataculture, Yinchuan 750021, Peoples R China

7.Sichuan Agr Univ, State Key Lab Crop Gene Explorat & Utilizat Southw, Chengdu 625014, Peoples R China

8.Jilin Agr Univ, Coll Life Scienc, Changchun 130118, Peoples R China

关键词： Avena sativa; Drought stress; MYB transcription factors; ROS

期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.3； 五年影响因子：5.2 ）

ISSN： 1471-2229

年卷期： 2024 年 24 卷 1 期

页码：

收录情况： SCI

摘要： Background The myeloblastosis (MYB) transcription factor (TF) family is one of the largest and most important TF families in plants, playing an important role in a life cycle and abiotic stress. Results In this study, 268 Avena sativa MYB (AsMYB) TFs from Avena sativa were identified and named according to their order of location on the chromosomes, respectively. Phylogenetic analysis of the AsMYB and Arabidopsis MYB proteins were performed to determine their homology, the AsMYB1R proteins were classified into 5 subgroups, and the AsMYB2R proteins were classified into 34 subgroups. The conserved domains and gene structure were highly conserved among the subgroups. Eight differentially expressed AsMYB genes were screened in the transcriptome of transcriptional data and validated through RT-qPCR. Three genes in AsMYB2R subgroup, which are related to the shortened growth period, stomatal closure, and nutrient and water transport by PEG-induced drought stress, were investigated in more details. The AsMYB1R subgroup genes LHY and REV 1, together with GST, regulate ROS homeostasis to ensure ROS signal transduction and scavenge excess ROS to avoid oxidative damage. Conclusion The results of this study confirmed that the AsMYB TFs family is involved in the homeostatic regulation of ROS under drought stress. This lays the foundation for further investigating the involvement of the AsMYB TFs family in regulating A. sativa drought response mechanisms.