Research in Plant Disease 2011;17(1):66-74.
Published online April 30, 2011.
산마늘(Allium victorialis var. platyphyllum)에서 바이러스병의 최초보고
박석진, 남문, 김정선, 이영훈, 이재봉, 김민경, 이준성, 최홍수, 김정수, 문제선, 김홍기
First Report of the Virus Diseases in Victory Onion (Allium victorialis var. platyphyllum)
Seok Jin Park, Moon Nam, Jeong Seon Kim, Yeong Hoon Lee, Jae Bong Lee, Min Kyeong Kim, Jun Seong Lee, Hong Soo Choi, Jeong Soo Kim, Jae Sun Moon, Hong Gi Kim
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.
Key Words: GarV-A, SLV, Ulleungdo, Victory onion (Allium victorialis var. platyphyllum), Virus
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