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Comparative transcriptome profiling of a thermal resistant vs. sensitive silkworm strain in response to high temperature under stressful humidity condition

文献类型： 外文期刊

作者： Xiao, Wenfu; Chen, Peng 1 ; Xiao, Jinshu; Wang, La 1 ; Liu, Taihang 1 ; Wu, Yunfei 1 ; Dong, Feifan 1 ; Jiang, Yami 1 ;

作者机构： 1.Southwest Univ, State Key Lab Silkworm Genome Biol, Key Lab Sericultural Biol & Genet Breeding, Minist Agr, Chongqing, Peoples R China

2.Southwest Univ, State Key Lab Silkworm Genome Biol, Key Lab Sericultural

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2017 年 12 卷 5 期

页码：

收录情况： SCI

摘要： Thermotolerance is important particularly for poikilotherms such as insects. Understanding the mechanisms by which insects respond to high temperatures can provide insights into their adaptation to the environment. Therefore, in this study, we performed a transcriptome analysis of two silkworm strains with significantly different resistance to heat as well as humidity; the thermo-resistant strain 7532 and the thermos-sensitive strain Knobbed. We identified in total 4,944 differentially expressed genes (DEGs) using RNA-Seq. Among these, 4,390 were annotated and 554 were novel. Gene Ontology (GO) analysis of 747 DEGs identified between RT_48h (Resistant strain with high-temperature Treatment for 48 hours) and ST_48h (Sensitive strain with high-temperature Treatment for 48 hours) showed significant enrichment of 12 GO terms including metabolic process, extracellular region and serine-type peptidase activity. Moreover, we discovered 12 DEGs that may contribute to the heat-humidity stress response in the silkworm. Our data clearly showed that 48h post-exposure may be a critical time point for silkworm to respond to high temperature and humidity. These results provide insights into the genes and biological processes involved in high temperature and humidity tolerance in the silkworm, and advance our understanding of thermal tolerance in insects.

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