Six novel begomoviruses infecting tomato and associated weeds in Southeastern Brazil

Gloria P. Castillo-Urquiza, José Evando A. Beserra, Fernanda P. Bruckner, Alison T.M. Lima, Arvind Varsani, Poliane Alfenas-Zerbini, F. Murilo Zerbini

Research output: Contribution to journalArticlepeer-review

80 Scopus citations


The incidence of tomato-infecting begomoviruses has sharply increased in Brazil following the introduction of the B biotype of the whitefly vector in the early 1990s. Five definitive species and six tentative species have been described since then. Here, we report the detection of members of an additional six novel species, three in tomato and three infecting weeds that are commonly associated with tomato fields: Blainvillea rhomboidea, Sida rhombifolia and Sida micrantha. Tomato and weed samples were collected in two major tomato-growing regions of southeastern Brazil in 2005 and 2007. Two of the novel viruses were present in tomato plants collected in Paty do Alferes, Rio de Janeiro state. Three novel viruses were present in weed samples collected in Coimbra, Minas Gerais state. One virus was present in tomato samples collected at both locations. Genome features indicate that all six species are typical New World, bipartite begomoviruses. However, the viruses belonging to two of the novel species did not cluster with the Brazilian viruses in a phylogenetic tree. These species could represent a distinct lineage of New World begomoviruses, found in Brazil for the first time.

Original languageEnglish (US)
Pages (from-to)1985-1989
Number of pages5
JournalArchives of virology
Issue number10
StatePublished - Oct 2008
Externally publishedYes

ASJC Scopus subject areas

  • Virology


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