Transcriptomic Responses to Rapid Cold Hardening in Tomato Leafminer Adults: Implications for Tomato Leafminer Management

文献类型： 外文期刊

第一作者： Zhao, Yan

作者： Zhao, Yan;Shi, Jiayi;Hu, Yingjie;Jiang, Yuyang;Hou, Youming;Ullah, Farman

作者机构：

关键词： Tuta absoluta; RNA-seq; cold stress adaptation; cell cycle; metabolic process

期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）

ISSN：

年卷期： 2025 年 15 卷 3 期

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收录情况： SCI

摘要： The tomato leafminer, Tuta absoluta, is an invasive pest that poses a significant threat to Solanaceae crops, including tomatoes, potatoes, and eggplants. Its ability to adapt to various environmental conditions, especially cold stress, allows it to survive in regions with fluctuating temperatures. In this study, the molecular response of T. absoluta adults to rapid cold hardening (RCH) under gradually decreasing non-lethal temperatures was investigated. Using RNA-seq, 197 upregulated genes and 626 downregulated genes were identified in response to cold hardening. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses revealed that upregulated genes were primarily associated with the cell cycle and cell division, including key genes such as CDC25A, BUB1, ORC2, and PlK1, as well as metal ion transporters like unc-93. Downregulated genes were found to be involved in metabolism and oxidative phosphorylation, including COX4, ATPase_I, and ATP-synt_ab. Weighted gene coexpression network analysis (WGCNA) indicated a positive correlation between cell cycle-related genes and RCH, while metabolic processes, including fatty acid metabolism, were negatively correlated with cold hardening. These findings provide new insights into the transcriptional mechanisms of insect responses to cold stress, and highlight potential targets for environmentally sustainable pest management strategies.

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