Department of Agriculture, Fisheries and Forestry, Ecosciences Precinct, GPO Box 267, Brisbane, Queensland 4001, Australia.
Arch Virol. 2013 Aug;158(8):1637-47. doi: 10.1007/s00705-013-1628-4. Epub 2013 Mar 9.
This is the first report of the genetic diversity within ilarvirus subgroup 1 from eastern Australia. It supports the separation of tobacco streak virus (TSV) strains from parthenium (Parthenium hysterophorus) and crownbeard (Verbescina encelioides) based on serology and host specificity. It has confirmed one previously described strain of TSV as a member of the species Strawberry necrotic shock virus and another as a new subgroup 1 ilarvirus, ageratum latent virus (AgLV), from Ageratum houstonianum. A multiplex RT-PCR showed that the genetically distinct strains of TSV and AgLV were commonly found in symptomless infections in virus-specific alternative weed hosts growing over a wide geographical range in eastern Australia. TSV has been one of the most damaging viruses in Australian oilseed and pulse crops in recent years, and this study has provided the taxonomic knowledge essential for the development of control programs for these viruses.
这是首次对来自澳大利亚东部的 ilarvirus 亚组 1 的遗传多样性进行报告。它支持根据血清学和宿主特异性将来自豚草（Parthenium hysterophorus）和冠状须芒草（Verbescina encelioides）的烟草条纹病毒（TSV）株系进行分离。它已经证实了一个以前描述的 TSV 株系是草莓坏死休克病毒的一个成员，另一个是来自 Ageratum houstonianum 的新的亚组 1 ilarvirus，即百日草潜隐病毒（AgLV）。多重 RT-PCR 显示，在澳大利亚东部广泛地理范围内生长的具有病毒特异性替代杂草宿主的无症状感染中，这些遗传上不同的 TSV 和 AgLV 株系很常见。TSV 是近年来澳大利亚油籽和豆类作物中最具破坏性的病毒之一，本研究为这些病毒的控制计划的发展提供了必要的分类学知识。
