1. Characterization of genes encoding heat shock proteins reveals a differential response to temperature in two geographic populations of Liriomyza trifolii (Diptera: Agromyzidae).
- Author
-
Chang, Ya-Wen, Yan, Yu-Qing, Hu, Jie, and Du, Yu-Zhou
- Subjects
HEAT shock proteins ,AGROMYZIDAE ,GENE expression ,GENE families ,HIGH temperatures - Abstract
Liriomyza trifolii is a significant, invasive pest that damages horticultural crops and vegetables. The distribution of L. trifolii is influenced by temperature, and prior research has demonstrated that variations in thermal adaptability differ among geographic populations of the insect. Heat shock proteins (Hsps) are involved in adaptation to temperatures; however, the underlying molecular mechanism for thermal adaption in different L. trifolii populations remains unclear. This study examines the temperature adaptability of two L. trifolii populations from Hainan (HN) and Jiangsu (JS) provinces. The results indicate that the HN population has a higher survival rate and a higher critical thermal maximum (CT max) than the JS population under high temperature stress. Transcriptome data at 42 °C revealed that the JS population has more differentially expressed genes (DEGs) than the HN population, while the HN population has more upregulated DEGs. The two populations were similar in functional annotation of DEGs, and a large number of Hsps were upregulated. However, the HN population had larger numbers and higher expression levels of Hsps during heat stress as compared to the JS population. Additionally, the expression patterns of differentially expressed Hsps varied between the HN and JS populations in response to different elevated temperatures. Notably, the transcription levels of Hsp70 s were higher in the HN population as compared to the JS population, while the expression level of genes encoding small heat shock proteins was higher in the JS population. These findings have significant scientific value in understanding the underlying mechanism of temperature adaption in L. trifolii and provide a fresh perspective on the distribution of this invasive pest. [Display omitted] • Heat tolerance of two populations (HN and JS) of L. trifolii was compared. • Transcriptome of two geographical populations under heat stress were sequenced. • HN population has more upregulated DEGs and a higher number and expression of Hsps. • The expression pattern and gene family of Hsp s varied between HN and JS populations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF