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First Report of the Virus Diseases in Victory Onion (Allium victorialis var. platyphyllum)

산마늘(Allium victorialis var. platyphyllum)에서 바이러스병의 최초보고

  • Park, Seok-Jin (Crop Protection Division, National Academy of Agricultural Science, RDA) ;
  • Nam, Moon (Crop Protection Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Jeong-Seon (Crop Protection Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Yeong-Hoon (Legume and Oil Crop Research Division, National Institute of Crop Science, RDA) ;
  • Lee, Jae-Bong (Jungbu Regional Office, National Plant Quarantine Service) ;
  • Kim, Min-Kyeong (Jungbu Regional Office, National Plant Quarantine Service) ;
  • Lee, Jun-Seong (Crop Protection Division, National Academy of Agricultural Science, RDA) ;
  • Choi, Hong-Soo (Crop Protection Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Jeong-Soo (Crop Protection Division, National Academy of Agricultural Science, RDA) ;
  • Moon, Jae-Sun (Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology) ;
  • Kim, Hong-Gi (Department of Agricultural Biology, Chungnam National University) ;
  • Lee, Su-Heon (Crop Protection Division, National Academy of Agricultural Science, RDA)
  • 박석진 (국립농업과학원 작물보호과) ;
  • 남문 (국립농업과학원 작물보호과) ;
  • 김정선 (국립농업과학원 작물보호과) ;
  • 이영훈 (국립식량과학원 두류유지작물과) ;
  • 이재봉 (국립식물검역원 중부지원) ;
  • 김민경 (국립식물검역원 중부지원) ;
  • 이준성 (국립농업과학원 작물보호과) ;
  • 최홍수 (국립농업과학원 작물보호과) ;
  • 김정수 (국립농업과학원 작물보호과) ;
  • 문제선 (한국생명공학연구원 식물시스템공학연구센터) ;
  • 김홍기 (충남대학교 농생물학과) ;
  • 이수헌 (국립농업과학원 작물보호과)
  • Received : 2010.11.12
  • Accepted : 2011.03.29
  • Published : 2011.04.30

Abstract

In 2005, a survey was conducted to identify virus diseases on victory onion, Allium victorialis var. platyphyllum grown in Ulleung island located in the East Sea. A total of 61 samples were collected from victory onion in the neighborhood of Seonginbong. The identification of viruses from the samples were carried out by electron microscopy and RT-PCR using primers species specific to GCLV, LYSV, SLV, OYDV and genus specific to Allexivirus, respectively. From sixty-one samples, filamentous rod particles (600-900 nm) were detected from four victory onion samples in EM, three samples containing SLV and one sample containing both SLV and Allexivirus in RT-PCR analysis, respectively. Victory onions naturally infected by the viruses were asymptomatic apparently. The viruses detected by RT-PCR were further characterized by the nucleotide sequence analysis of the coat protein region. Three isolates of SLV showed approximately 99% identities in the nucleotide and amino acid sequences, suggesting that they were likely to be the same strain. On the other hand, they showed approximately 75.7~83.7% identities in the nucleotide and 89.2~97.0% in amino acid sequences compared with the previously reported SLV isolates in Allium. The CP gene of the Allexivirus showed approximately 99.2% nucleotide identities and 98.8% amino acid identities with Garlic virus A. However, there was relatively low homology ranging from 60.6% to 81.5% compared with other Allexiviruses (GarV-C, GarV-E, GarV-X, GMbMV, and Shal-X). These data suggested that two viruses, SLV and GarV-A identified from victory onion, are named SLV-Ulleungdo and GarV-A-Ulleungdo, respectively. This is the first report of viruses infecting victory onion.

2005년 울릉도에 자생하고 있는 산마늘에 대하여 바이러스병을 조사하기 위하여 성인봉 부근에서 61점의 시료를 채집하였다. 채집한 시료를 동정하기 위해 전자현미경 검경과 종 특이적 프라이머(GCLV, LYSV, SLV, OYDV) 및 속 특이적 프라이머(Allexivirus)를 이용하여 RT-PCR을 각각 수행하였다. 전자현미경 검경을 실시한 결과 61점의 시료중 4점의 시료에서 600~900 nm의 긴 사상형 입자가 관찰되었으며, RT-PCR 진단결과 SLV가 4점, 이 중 하나는 Allexivirus가 복합감염되었다. 바이러스에 감염된 산마늘은 외관상으로 병징을 나타내지 않았다. RT-PCR 분석결과 SLV와 Allexivirus로 동정된 울릉도 산마늘 바이러스의 외피단백질 유전자 염기서열을 비교 분석하였다. 분석결과, SLV로 분류된 울릉도 산마늘 바이러스 개체간은 약 99%의 상동성을 가지고 있었으며, 이전에 보고된 다양한 SLV와 GLV의 strain과의 염기 서열의 비교에서는 75.7~83.7%의 상동성을 보였으며 아미노산 서열의 비교는 89.2~97.0%의 높은 상동성을 나타냈다. 또한 산마늘에서 검출된 GarV-A는 이전에 마늘에서 보고된 GarV-A와 99.2% 외피단백질 유전자 염기서열 상동성을 보였으며, 아미노산 서열은 98% 상동성을 보였다. 그러나 다른 Allexiviruses(GarV-C, GarV-E, GarV-X, GMbMV and Shal X)와 아미노산 서열을 비교한 결과 60.6%~81.5%의 상대적으로 낮은 상동성을 보였다. 이러한 자료들을 바탕으로 산마늘에서 분리한 SLV와 GarV-A를 각각 SLV-Ulleungdo와 GarV-A-Ulleungdo로 명명하였다. 본 논문은 산마늘에서 발생하는 바이러스에 대한 첫 번째 보고이다.

Keywords

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