Cnidoscolus blistering yellow mosaic virus: a new begomovirus isolated from Cnidoscolus urens in Brazil
Members of the genus Begomovirus have circular single-strand DNA genome encapsidated into quasi-icosahedral particles, which are transmitted by the Bemisia tabaci complex, with non-cultivated hosts acting as reservoirs for these viruses. In this study a new begomovirus infecting Cnidoscolus urens (Euphorbiaceae) from Brazil has been characterized. The complete DNA-A sequence was used for species demarcation, phylogenetic and recombination analyzes with other previously reported begomoviruses. The DNA-A (2585 nt) has a genome organization that is typical of the New World bipartite begomovirus, most closely related to tomato yellow spot virus, with 80.6% nucleotide identity. Based on the identity criterion for DNA-A established by the Geminiviridae Study Group of the International Committee on Taxonomy of Viruses of ≥ 91%, this isolate should be considered a member of a new species, for which the name “Cnidoscolus blistering yellow mosaic virus” (CnBYMV) is proposed. Phylogenetic analysis revealed that CnBYMV grouped with begomoviruses described in cultivated and non-cultivated plants from Brazil. Results of recombination analysis indicated that the novel begomovirus was a recombinant, with cnidoscolus mosaic leaf deformation virus and sida mottle virus as probable parents.
How to Cite
All articles published may be reproduced or utilized in any form or by any means whether specified Comunicata Scientiae, author(s), volume, pages and year. The authors are responsible for all the statements and concepts contained in the article.