文献类型： 外文期刊

作者： Liu, Renjian ¹ ; Shu, Bingbing ¹ ; Wang, Yuyuan ¹ ; Yu, Bingwei ¹ ; Wang, Yixi ¹ ; Gan, Yuwei ¹ ; Liang, Yonggui ¹ ; Qiu, Zhengkun ¹ ; Yang, Jianguo ³ ; Yan, Shuangshuang ¹ ; Cao, Bihao ¹ ;

作者机构： 1.South China Agr Univ, Coll Hort, Key Lab Hort Crop Biol & Germplasm Innovat South C, Minist Agr, Guangzhou 510642, Peoples R China

2.South China Agr Univ, Guangdong Vegetable Engn & Technol Res Ctr, Guangzhou 510642, Peoples R China

3.Hunan Acad Agr Sci, Hunan Vegetable Res Inst, Changsha 410125, Peoples R China

关键词： HTS; Eggplant; Transcriptome analysis; Heat resistance

期刊名称：ENVIRONMENTAL AND EXPERIMENTAL BOTANY （ 影响因子：5.7； 五年影响因子：6.0 ）

ISSN： 0098-8472

年卷期： 2023 年 211 卷

页码：

收录情况： SCI

摘要： High-temperature stress (HTS) affects the quality and yield of vegetable crops. Eggplant seedlings, flower organs and fruits are affected by HTS. However, the molecular mechanism underlying heat resistance in eggplant re-mains unclear. A thermotolerant eggplant line, E390, and a thermosensitive eggplant line, HM, were identified in this study. The differences in the physiological indices, chlorophyll fluorescence, and photosynthetic system parameters of the E390 and HM eggplant lines were analysed under HTS. To better study gene expression under HTS, a transcriptome analysis of eggplant leaves subjected to 42 celcius high-temperature treatment (HTT) for 0, 1, 6, and 12 h was performed. Gene Ontology (GO) enrichment, Kyoto Encyclopaedia of Genes and Genomes (KEGG) enrichment, and expression trend analysis of the differentially expressed genes (DEGs) identified were per-formed. The expression patterns of the genes related to transcription factors (TFs), hormones, and heat stress were further analysed. Twenty-three candidate genes responding to HTS were identified. Moreover, their expression patterns were verified by quantitative real-time RT-PCR (qRT-PCR). Yeast experiment results revealed that HSP70, MYB44, AFP2, HSFA8, EGY3, HSFA3, and TIFY6B might enhance the heat resistance of eggplant. This study provides a reference for further research on the molecular mechanism of eggplant in response to HTS.