Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Complete Genome Analysis of Spodoptera exigua Nucleopolyhedrovirus Isolated in Korea

한국에서 분리된 파밤나방 핵다각체병 바이러스의 전체 유전체 분석

  • Jae Bang, Choi (Optipharm Inc.) ;
  • Hyun-Soo, Kim (Department of Plant Medicine, College of Agriculture, Life & Environment Science, Chungbuk National University) ;
  • Soo-Dong, Woo (Department of Plant Medicine, College of Agriculture, Life & Environment Science, Chungbuk National University)
  • 최재방 ((주)옵티팜) ;
  • 김현수 (충북대학교 농업생명환경대학 식물의학과) ;
  • 우수동 (충북대학교 농업생명환경대학 식물의학과)
  • Received : 2022.05.16
  • Accepted : 2022.07.01
  • Published : 2022.09.01
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Abstract

The morphology and whole genome sequence of Spodoptera exigua nucleopolyhedrovirus K1 (SeNPV-K1) isolated in Korea were analyzed for the use as an eco-friendly control source against S. exigua. The polyhedra of SeNPV-K1 was amorphous with a size of 0.6-1.8 ㎛, and there was no external difference with the previously reported SeNPV. As a result of analyzing the nucleotide sequence of the whole genome, it was composed of 135,756 bp, which is 145 bp more than that of the previously reported SeNPV. The G+CG+C content was 44% and there were 6 homologous repeated sequences, so there was no significant difference from the previous report. As a result of ORF analysis, SeNPV-K1 had 137, two fewer than those previously reported, and 4 ORFs present only in SeNPV-K1 were confirmed. These 4 ORFs are non-essential genes and were not considered to have a significant influence on the characteristics of the SeNPV. The genome vista analysis showed that the overall sequence similarity between SeNPV-K1 and the previously reported SeNPV was very high. The whole genome of SeNPV-K1 analyzed for the first time in Korea was found to be similar to the previously reported SeNPV, but it was confirmed that it was a novel resource in Korea with different isolate.

광식성 난방제 해충인 파밤나방(Spodoptera exigua)의 친환경적 방제원으로써 이용을 위해 국내에서 분리된 파밤나방 핵다각체병바이러스(S. exigua nucleopolyhedrovirus K1: SeNPV-K1)의 형태 및 전체 유전체 서열을 분석하였다. SeNPV-K1의 다각체(polyhedra)는 0.6-1.8 um 크기의 부정형으로, 기 보고된 SeNPV와 외형적 차이는 보이지 않았다. 전체 유전체의 염기서열을 분석한 결과, 기 보고된 SeNPV와 비교할 때 145 bp 더 많은 135,756 bp로 확인되었으며, G+C 함량은 44% 였고 상동반복영역은 6개로 두 바이러스간에 차이는 없었다. ORF 분석결과, SeNPV-K1은 기 보고된 것과 비교할 때 2개 더 적은 137개를 가지며, SeNPV-K1에만 존재하는 ORF는 4개가 확인되었다. 이들 4개의 ORF는 비필수 유전자로 바이러스의 특성에는 큰 영향을 주지 않을 것으로 여겨졌다. 유전체의 vista 분석 결과, SeNPV-K1과 기 보고된 SeNPV의 전체 염기서열 유사도가 매우 높은 것으로 확인되었다. 국내에서 처음으로 분석한 SeNPV-K1의 전체 유전체는 기 보고된 SeNPV와 유사한 것으로 나타났으나 서로 다른 분리주로 국내 고유자원임을 확인하였다.

Keywords

Acknowledgement

이 논문은 충북대학교 국립대학육성사업(2021)지원을 받아 작성되었음.

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