Mavrodieva Vessela, James Delano, Williams Karen, Negi Sarika, Varga Aniko, Mock Ray, Levy Laurene
United States Department of Agriculture (USDA), Animal and Plant Health Inspection Services (APHIS), Plant Protection and Quarantine (PPQ), Center for Plant Health Science and Technology (CPHST) Beltsville Laboratory, Bldg. 580, BARC-East, Powder Mill Rd., Beltsville, MD 20705, USA.
Sidney Laboratory, Canadian Food Inspection Agency (CFIA), 8801 East Saanich Road, Sidney, BC, V8L 1H3, Canada.
Plant Dis. 2013 Jan;97(1):44-52. doi: 10.1094/PDIS-01-12-0104-RE.
Four of 19 Prunus germplasm accessions hand carried from the Ukraine into the United States without authorization were found to be infected with Plum pox virus (PPV). Of the three isolates characterized, isolates UKR 44189 and UKR 44191 were confirmed to be isolates of PPV strain W, and UKR 44188 was confirmed to be an isolate of PPV strain D. UKR 44189 and UKR 44191 are very closely related to the PPV strain W isolate LV-145bt (HQ670748) from Latvia. Nucleotide and amino acid sequence identities between these three isolates were greater than 99%. This indicates that the isolates are very closely related and likely originated from a common source. The high genetic diversity among PPV-W strain isolates allowed the identification of potential recombination events between PPV isolates. It appears also that GF 305 peach and Prunus tomentosa are not hosts for the PPV isolate UKR 44189.
19份未经授权从乌克兰携带至美国的李属种质资源中，有4份被发现感染了李痘病毒（PPV）。在已鉴定的3个分离株中，分离株UKR 44189和UKR 44191被确认为PPV-W株系的分离株，UKR 44188被确认为PPV-D株系的分离株。UKR 44189和UKR 44191与来自拉脱维亚的PPV-W株系分离株LV-145bt（HQ670748）密切相关。这三个分离株之间的核苷酸和氨基酸序列同一性大于99%。这表明这些分离株密切相关，可能起源于共同的来源。PPV-W株系分离株之间的高遗传多样性使得能够识别PPV分离株之间潜在的重组事件。此外，GF 305桃和毛樱桃似乎不是PPV分离株UKR 44189的寄主。
