Ipomovirus – an atypical genus in the family Potyviridae transmitted by whiteflies. Issue 10 (3rd March 2014)

• Record Type: Journal Article
• Authors: Dombrovsky, Aviv; Reingold, Victoria; Antignus, Yehezkel
• Is Part Of: Pest management science. Volume 70:Issue 10(2014:Oct.)
• Page Start: 1553
• Page End: 1567
• Publication Date: 2014-03-03
• Subjects: Pests -- Control -- Periodicals; Pesticides -- Periodicals; 632.9
• DOI: 10.1002/ps.3735
• Languages: English
• ISSNs: 1526-498X

Abstract

<abstract abstract-type="main" id="ps3735-abs-0001"> <title>Abstract</title> <p id="ps3735-para-0001">Ipomoviruses (genus <italic>Ipomovirus</italic>) are whitefly‐transmitted viruses assigned to the family <italic>Potyviridae</italic>. They are characterised by filamentous flexible particles and a positive‐sense single‐stranded RNA (+ssRNA) genome. The viral genome is translated into a polyprotein precursor, which is processed into mature proteins and a short overlapping open reading frame. The genus <italic>Ipomovirus</italic> contains four accepted species and one unapproved species, and two other tentative members have recently been characterised. Ipomoviruses cause serious economic losses in many important crops, including cassava, sweet potato, cucurbits, tomato and aubergine. These viruses are transmitted by whiteflies in a non‐circulative, semi‐persistent manner, the virions being retained on the external surface of the vectors' mouthparts for a few days or weeks. Comparison of the available complete genome sequences of different ipomoviruses revealed differences in their genome organisation and a considerable variation in their proteins and conserved motifs that may reflect functional differences. This review summarises the current knowledge of the members within the genus <italic>Ipomovirus</italic>, focusing on genome organisation, taxonomic classification and the mechanism by which they are transmitted. © 2014 Society of Chemical Industry</p> </abstract>