Transcriptome analysis of Liriomyza trifolii (Diptera: Agromyzidae) in response to temperature stress.
Abstract
The leafminer Liriomyza trifolii is an important insect pest of ornamental and vegetable crops worldwide. Temperature is a critical environmental factor that impacts both the distribution and interspecific competition of Liriomyza spp. In this study, we compared the transcriptomes of L. trifolii exposed to ambient (25 °C), hot (43 °C), and cold (-7 °C) temperatures. RNA-seq revealed 100,041 assembled unigenes, and 50,546 of these were annotated in L. trifolii transcriptome libraries. A total of 207 and 2904 differentially expressed genes (DEGs) were identified in response to hot and cold stress, respectively. Functional classification indicated that "cellular process", "single organism processes" and "metabolic processes" pathways were significantly enriched, along with "binding activity" and "catalytic activity". With respect to clusters of orthologous genes (COG) classification, DEGs were assigned to "post-translational modification, protein turnover, chaperones", "carbohydrate transport and metabolism" and "lipid transport and metabolism" categories. Subsequent annotation and enrichment analyses indicated that genes encoding heat shock proteins (HSPs) and cuticular proteins were significantly up-regulated during heat and col...Continue Reading
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