Heat shock transcription factors regulate thermotolerance gene networks in tomato ( Solanum lycopersicum) flower buds
文献类型： 外文期刊
作者： Li, Hongwei 1 ; Liu, Yun 1 ; Li, Yongyao 2 ; Yang, Qinqin 1 ; Yang, Tailai 1 ; Zhou, Zhi 1 ; Li, Yafei 1 ; Zhang, Na 1 ; Lyu, Yaqing 2 ; Zhu, Yingfang 3 ; Lin, Tao 1 ;
作者机构： 1.China Agr Univ, Coll Hort, Beijing 100193, Peoples R China
2.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen Branch, Guangdong Lab Lingnan Modern Agr,Genome Anal Lab,M, Shenzhen 518124, Guangdong, Peoples R China
3.Henan Univ, Sch Life Sci, State Key Lab Crop Stress Adaptat & Improvement, Kaifeng 450046, Henan, Peoples R China
关键词： Tomato; Heat stress; Transcriptome; Transcription factor; Thermotolerance
期刊名称：HORTICULTURAL PLANT JOURNAL （ 影响因子：6.2； 五年影响因子：6.1 ）
ISSN： 2095-9885
年卷期： 2025 年 11 卷 1 期
页码：
收录情况： SCI
摘要： Tomato (Solanum lycopersicum) is an important fruit and vegetable crop in worldwide. The fertility of tomato reproductive organs can be dramatically decreased when ambient temperatures rise above 35 degrees C, reducing tomato fruit yield. It is necessary to identify transcription factors (TFs) and target genes involved in heat stress response (HSR) signaling cascades in tomato flower buds to improve tomato plant thermotolerance. In this study, we profiled genes expressed in three developmental stages of tomato flower buds. Red and turquoise modules for heat stress (HS) were identified through gene co-expression network analysis, and the genes within these modules were enriched in HS-related pathways. By focusing on the TFs in the two modules, we identified several novel HSR-related TFs, including SlWRKY75, SlMYB117, and SlNAM. Furthermore, homology analysis illustrated a conserved signaling cascade in tomato. Lastly, we identified and experimentally validated four HSF-regulated genes, namely SlGrpE, SlERDJ3A, SlTIL, and SlPOM1, that likely modulate thermotolerance in plants. These results provide a high-resolution atlas of gene expression during tomato flower bud development under HS conditions, which is a valuable resource for uncovering potential regulatory networks associated with the HSR in tomato.
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