Establishment of three new genera in the family Geminiviridae: Becurtovirus, Eragrovirus and Turncurtovirus
Brown, Judith K.
Murilo Zerbini, F.
Martin, Darren Patrick
KAUST DepartmentBiological and Environmental Sciences and Engineering (BESE) Division
Desert Agriculture Initiative
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AbstractThe family Geminiviridae includes plant-infecting circular single-stranded DNA viruses that have geminate particle morphology. Members of this family infect both monocotyledonous and dicotyledonous plants and have a nearly global distribution. With the advent of new molecular tools and low-cost sequencing, there has been a significant increase in the discovery of new geminiviruses in various cultivated and non-cultivated plants. In this communication, we highlight the establishment of three new genera (Becurtovirus, Eragrovirus and Turncurtovirus) to accommodate various recently discovered geminiviruses that are highly divergent and, in some cases, have unique genome architectures. The genus Becurtovirus has two viral species, Beet curly top Iran virus (28 isolates; leafhopper vector Circulifer haematoceps) and Spinach curly top Arizona virus (1 isolate; unknown vector), whereas the genera Eragrovirus and Turncurtovirus each have a single assigned species: Eragrostis curvula streak virus (6 isolates; unknown vector) and Turnip curly top virus (20 isolates; leafhopper vector Circulifer haematoceps), respectively. Based on analysis of all of the genome sequences available in public databases for each of the three new genera, we provide guidelines and protocols for species and strain classification within these three new genera. © 2014 Springer-Verlag Wien.
SponsorsAV and DPM are supported by the National Research Foundation, South Africa. JNC and EM are members of the Research Group AGR-214, partially funded by Consejeria de Economia, Innovacion y Ciencia, Junta de Andalucia, Spain, cofinanced by FEDER-FSE.
PublisherSpringer Science + Business Media
JournalArchives of Virology