Grapevine leafroll and associated virus Authors Joan Sanxis Departament de Microbiologia i Ecologia, Universitat de València Sergi Maicas Departament de Microbiologia i Ecologia, Universitat de València Keywords: ampelovirus, Closteroviridae, grapevine leafroll-associated virus 3, Coccoidea, genetic variants, grapevine leafroll disease. Abstract Grapevine leafroll is a viral disease that has a large negative impact on crops and on the production of quality grapes. Known for over a century, with a worldwide distribution and 10 species of closterovirus associated with it, its main etiological agent is grapevine leafroll-associated virus 3 (GLRaV-3). The study of the Closteroviridae family and its phylogeny allowed an understanding of the evolution of these viruses, which undergo a strong negative selection with much migration, although some species have managed to increase their genetic variability through recombination. Six genetic variants of GLRaV-3 have been described up to now, but the number is increasing. The transmission of these viruses is semipersistent and it is carried out by insect vectors belonging to the superfamily Coccoidea. These insects are parthenogenetic, producing a large number of offspring which during their first larval stage may be dispersed by the wind and therefore have a high efficiency in infecting vineyards. The damage caused by this disease in vineyards can be highly variable and especially includes loss of vigor of vines and loss of productivity. In the long term, it has been observed that it has a cumulative effect, significantly reducing the productive lifetime of vines. In recent years, faster and more powerful techniques have been developed for detection, such as reverse transcriptase PCR (RT-PCR) and new-generation sequencing, allowing species and their variants to be detected while moreover providing new information on the epidemiology of the disease. Detection techniques developed in nurseries, which are used to test plant material that is sold, are the most effective practice to control the spread of this disease. In this paper, we present a literature review that aims to update the research carried out to date on this disease.Keywords: ampelovirus, Closteroviridae, grapevine leafroll-associated virus 3, Coccoidea, genetic variants, grapevine leafroll disease. Downloads Download data is not yet available. Downloads PDF (Català) Issue No. 39: desembre 2015 Section Articles License The intellectual property of articles belongs to the respective authors. On submitting articles for publication to the journal QUADERNS AGRARIS, authors accept the following terms: Authors assign to ICEA (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to QUADERNS AGRARIS.Authors answer to ICEA for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.ICEA declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at http://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.The journal QUADERNS AGRARIS is not responsible for the ideas and opinions expressed by the authors of the published articles.
