Volume 48, Issue 1 pp. 60-72
Research Paper
Full Access

RNA Sequencing, De novo assembly, functional annotation and SSR analysis of the endangered diving beetle Cybister chinensis (= Cybister japonicus) using the Illumina platform

Hee-Ju Hwang

Hee-Ju Hwang

Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan, Chungcheongnam-do, South Korea

These authors contributed equally to this work.Search for more papers by this author
Bharat Bhusan Patnaik

Bharat Bhusan Patnaik

Trident School of Biotech Sciences, Trident Academy of Creative Technology (TACT), Chandaka Industrial Estate, Bhubaneswar, Odisha, India

These authors contributed equally to this work.Search for more papers by this author
Se Won Kang

Se Won Kang

Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Jeongeup-Si, Jeollabuk-do, South Korea

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So Young Park

So Young Park

Nakdonggang National Institute of Biological Resources, Biodiversity Conservation and Change Research Division, Sangju-si, Gyeongsangbuk-do, South Korea

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Jong Min Chung

Jong Min Chung

Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan, Chungcheongnam-do, South Korea

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Min Kyu Sang

Min Kyu Sang

Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan, Chungcheongnam-do, South Korea

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Jie Eun Park

Jie Eun Park

Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan, Chungcheongnam-do, South Korea

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Hye Rin Min

Hye Rin Min

Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan, Chungcheongnam-do, South Korea

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Jiyeon Seong

Jiyeon Seong

Genomic Informatics center, Hankyong National University, Anseong-si, Kyonggi-do, South Korea

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Yong Hun Jo

Yong Hun Jo

Division of Plant Biotechnology, Institute of Environmentally-Friendly Agriculture (IEFA), College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Republic of Korea

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Mi Young Noh

Mi Young Noh

Division of Plant Biotechnology, Institute of Environmentally-Friendly Agriculture (IEFA), College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Republic of Korea

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Jong Dae Lee

Jong Dae Lee

Department of Environmental Health Science, College of Natural Sciences, Soonchunhyang University, Asan, Chungcheongnam-do, South Korea

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Ki Yoon Jung

Ki Yoon Jung

Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan, Chungcheongnam-do, South Korea

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Hong Seog Park

Hong Seog Park

Research Institute, GnC BIO Co., LTD, Daejeon, South Korea

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Heon Cheon Jeong

Heon Cheon Jeong

Hampyeong county Insect Institute, Hampyeong County Agricultural Technology Centerm 90, Jeollanam-do, South Korea

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Yong Seok Lee

Corresponding Author

Yong Seok Lee

Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan, Chungcheongnam-do, South Korea

Correspondence

Yong Seok Lee, Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, 22 Soonchunhyangro, Shinchang-myeon, Asan, Chungcheongnam-do 31538, Korea.

Email: [email protected]

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First published: 27 January 2018
Citations: 5

Abstract

Cybister chinensis Motschulsky, 1854 (synonym Cybister japonicus Sharp, 1873) is a beetle found in ponds and irrigation canals near rice fields regulating the aquatic faunal community through predation. However, due to loss of natural habitats, use of pesticides, and invasion of alien species the beetle is threatened. With lack of understanding at the trophic ecology and genomics level, the conservation study is hindered to a larger extent. In the present study, Illumina HiSeq 4000 platform has been used to unravel the whole-larval transcriptome of the beetle. A total of 20,129 non-redundant unigenes were assembled from 67,260,666 clean read sequences. About 18,743 unigenes found a homologous match in any one of the databases like PANM, UniGene, Swiss-Prot, Clusters of Orthologous Groups (COG), Gene Ontology (GO), KEGG, and InterProScan. While the zinc finger domains topped the unigene hits, about 660 enzymes (2695 sequences) participating in metabolism, environmental information processing, genetic information processing and organismal system pathways were recorded. Furthermore, the HSP70 class, Toll-like receptors 4, insulin-receptor substrate, and AMP activated protein kinase showed conspicuous presence in the larval transcriptome. Out of a total of 12,491 unigene sequences examined, 1968 SSRs were detected. Majority of them were dinucleotide repeats with six iterations followed by trinucleotide and tetranucleotide repeats with five and four iterations, respectively. This is the first report of cDNA resources from C. japonicus till date. The data would be crucial for the assessment of the beetle in the wild and making an inventory for utilisation in future genomics and ecological studies.

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