Genome-Wide Identification of Sorghum Paclobutrazol-Resistance Gene Family and Functional Characterization of SbPRE4 in Response to Aphid Stress
文献类型： 外文期刊
作者： Guo, Yongchao 1 ; Wang, Zhifang 1 ; Jiao, Zhiyin 1 ; Yuan, Guang 1 ; Cui, Li 2 ; Duan, Pengwei 3 ; Niu, Jingtian 1 ; Lv, Peng 1 ; Wang, Jinping 1 ; Shi, Yannan 1 ;
作者机构： 1.Hebei Acad Agr & Forestry Sci, Inst Millet Crops, China Natl Sorghum Improvement Ctr, Hebei Branch, Shijiazhuang 050035, Peoples R China
2.Hebei Plant Protect & Plant Inspect Stn, Shijiazhuang 050035, Peoples R China
3.Hebei Acad Agr & Forestry Sci, Shijiazhuang 050035, Peoples R China
关键词： Paclobutrazol-Resistance (PRE); sorghum (Sorghum bicolor); genome-wide identification; aphid stress
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.6 ）
ISSN： 1661-6596
年卷期： 2024 年 25 卷 13 期
页码：
收录情况： SCI
摘要： Sorghum (Sorghum bicolor), the fifth most important cereal crop globally, serves as a staple food, animal feed, and a bioenergy source. Paclobutrazol-Resistance (PRE) genes play a pivotal role in the response to environmental stress, yet the understanding of their involvement in pest resistance remains limited. In the present study, a total of seven SbPRE genes were found within the sorghum BTx623 genome. Subsequently, their genomic location was studied, and they were distributed on four chromosomes. An analysis of cis-acting elements in SbPRE promoters revealed that various elements were associated with hormones and stress responses. Expression pattern analysis showed differentially tissue-specific expression profiles among SbPRE genes. The expression of some SbPRE genes can be induced by abiotic stress and aphid treatments. Furthermore, through phytohormones and transgenic analyses, we demonstrated that SbPRE4 improves sorghum resistance to aphids by accumulating jasmonic acids (JAs) in transgenic Arabidopsis, giving insights into the molecular and biological function of atypical basic helix-loop-helix (bHLH) transcription factors in sorghum pest resistance.
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