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Transcriptome analysis and identification of induced genes in the response of Harmonia axyridis to cold hardiness

文献类型： 外文期刊

作者： Tang, Bin 1 ; Liu, Xiao-Jun 1 ; Shi, Zuo-Kun 1 ; Shen, Qi-Da 1 ; Xu, Yan-Xia 1 ; Wang, Su 2 ; Zhang, Fan 2 ; Wang, Shi-Gu 1 ;

作者机构： 1.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou Key Lab Anim Adaptat & Evolut, Hangzhou 310036, Zhejiang, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100089, Peoples R China

关键词： Harmonia axyridis;Transcriptome;DGE;Induced gene;Cold hardiness;Cryopreservation

期刊名称：COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS （ 影响因子：2.674； 五年影响因子：2.941 ）

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收录情况： SCI

摘要： Harmonia axyridis is an important predatory lady beetle that is a natural enemy of agricultural and forestry pests. In this research, the cold hardiness induced genes and their expression changes in H. axyridis were screened and detected by the way of the transcriptome and qualitative real-time PCR under normal and low temperatures, using high-throughput transcriptome and digital gene-expression-tag technologies. We obtained a 10 Gb transcriptome and an 8 Mb gene expression tag pool using Illumina deep sequencing technology and RNA-Seq analysis (accession number SRX540102). Of the 46,980 non-redundant unigenes identified, 28,037 (59.7%) were matched to known genes in GenBank, 21,604 (46.0%) in Swiss-Prot, 19,482 (41.5%) in Kyoto Encyclopedia of Genes and Genomes and 13,193 (28.1%) in Gene Ontology databases. Seventy-five percent of the unigene sequences had top matches with gene sequences from Tribolium castaneum. Results indicated that 60 genes regulated the entire cold-acclimation response, and, of these, seven genes were always up-regulated and five genes always down-regulated. Further screening revealed that six cold-resistant genes, E3 ubiquitin-protein ligase, transketolase, trehalase, serine/arginine repetitive matrix protein 2, glycerol kinase and sugar transporter SWEET1-like, play key roles in the response. Expression from a number of the differentially expressed genes was confirmed with quantitative real-time PCR (HaCS_Trans). The paper attempted to identify cold-resistance response genes, and study the potential mechanism by which cold acclimation enhances the insect's cold endurance. Information on these cold-resistance response genes will improve the development of low-temperature storage technology of natural enemy insects for future use in biological control. (C) 2017 Elsevier Inc. All rights reserved.

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[1]Molecular Cloning and Induced Expression of Six Small Heat Shock Proteins Mediating Cold-Hardiness in Harmonia axyridis (Coleoptera: Coccinellidae). Wang, Hui-Juan,Shi, Zuo-Kun,Shen, Qi-Da,Xu, Cai-Di,Wang, Shi-Gui,Tang, Bin,Wang, Bing,Wang, Su,Meng, Zhao-Jun. 2017

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