title: Identification of immunity-related genes in the larvae of Protaetia brevitarsis seulensis (Coleoptera: Cetoniidae) by a next-generation sequencing-based transcriptome analysis.
abstract: To identify immune-related genes in the larvae of white-spotted flower chafers, next-generation sequencing was conducted with an Illumina HiSeq2000, resulting in 100 million cDNA reads with sequence information from over 10 billion base pairs (bp) and >50× transcriptome coverage. A subset of 77,336 contigs was created, and ∼35,532 sequences matched entries against the NCBI nonredundant database (cutoff, e < 10(-5)). Statistical analysis was performed on the 35,532 contigs. For profiling of the immune response, samples were analyzed by aligning 42 base sequence tags to the de novo reference assembly, comparing levels in immunized larvae to control levels of expression. Of the differentially expressed genes, 3,440 transcripts were upregulated and 3,590 transcripts were downregulated. Many of these genes were confirmed as immune-related genes such as pattern recognition proteins, immune-related signal transduction proteins, antimicrobial peptides, and cellular response proteins, by comparison to published data.
authors.affiliation: Department of Applied Biology, College of Agriculture and Life Science, Environment Friendly Agriculture Center, Kangwon National University, Chuncheon, South Korea.
authors.forename: Kyeongrin
authors.initials: K
authors.lastname: Bang
authors.affiliation: Department of Applied Biology, College of Agriculture and Life Science, Environment Friendly Agriculture Center, Kangwon National University, Chuncheon, South Korea.
authors.forename: Sejung
authors.initials: S
authors.lastname: Hwang
authors.affiliation: Department of Applied Biology, College of Agriculture and Life Science, Environment Friendly Agriculture Center, Kangwon National University, Chuncheon, South Korea.
authors.forename: Jiae
authors.initials: J
authors.lastname: Lee
authors.affiliation: Department of Applied Biology, College of Agriculture and Life Science, Environment Friendly Agriculture Center, Kangwon National University, Chuncheon, South Korea saeyoullcho@kangwon.ac.kr.
authors.forename: Saeyoull
authors.initials: S
authors.lastname: Cho
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000235:genetics* / Q000276:immunology* / Q000382:microbiology; D004926:Escherichia coli; D020869:Gene Expression Profiling; D059014:High-Throughput Nucleotide Sequencing; D019476:Insect Proteins / Q000235:genetics / Q000276:immunology; D007814:Larva / Q000235:genetics / Q000276:immunology; D012441:Saccharomyces cerevisiae; D017423:Sequence Analysis, RNA
chemical_list: D019476:Insect Proteins
keywords: Illumina; Protaetia brevitarsis seulensis; RNA-seq; immune; transcription