Characterization and occurrence of squash chlorotic leaf spot virus, a tentative new torradovirus infecting cucurbits in Sudan

Arch Virol. 2016 Jun;161(6):1651-5. doi: 10.1007/s00705-016-2797-8. Epub 2016 Mar 3.

Abstract

During a survey conducted in Sudan in 2012, a virus with spherical particles was isolated from a squash plant showing chlorotic leaf spots. The virus was transmitted mechanically and by two whitefly species, but not by aphids. RT-PCR with generic torradovirus primers yielded a band of expected size from total RNA of a symptomatic plant. Next-generation sequencing confirmed that this is tentatively a new torradovirus, for which we propose the name 'squash chlorotic leaf spot virus'. Using specific RT-PCR primers, the virus was detected in cucurbit samples collected since 1992 at different locations in Sudan.

Keywords: Melon; Next-generation sequencing; SCLSV; Squash; Whitefly.

MeSH terms

  • Animals
  • Cucurbita / virology*
  • Disease Vectors
  • Hemiptera / virology
  • Phylogeny
  • Picornaviridae / classification*
  • Picornaviridae / genetics*
  • Picornaviridae / isolation & purification
  • Plant Diseases / virology*
  • Plant Leaves / virology
  • RNA, Plant / genetics
  • Sudan

Substances

  • RNA, Plant