English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/59366
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Genetic diversity and recombination analysis of sweepoviruses from Brazil

AuthorsAlbuquerque, Leonardo C.; Inoue-Nagata, Alice K.; Pinheiro, Bruna; Resende, Renato O.; Moriones, Enrique; Navas-Castillo, Jesús
Issue Date20-Oct-2012
PublisherBioMed Central
CitationVirology Journal. 9(1):241 (2012)
AbstractAbstract Background Monopartite begomoviruses (genus Begomovirus, family Geminiviridae) that infect sweet potato (Ipomoea batatas) around the world are known as sweepoviruses. Because sweet potato plants are vegetatively propagated, the accumulation of viruses can become a major constraint for root production. Mixed infections of sweepovirus species and strains can lead to recombination, which may contribute to the generation of new recombinant sweepoviruses. Results This study reports the full genome sequence of 34 sweepoviruses sampled from a sweet potato germplasm bank and commercial fields in Brazil. These sequences were compared with others from public nucleotide sequence databases to provide a comprehensive overview of the genetic diversity and patterns of genetic exchange in sweepoviruses isolated from Brazil, as well as to review the classification and nomenclature of sweepoviruses in accordance with the current guidelines proposed by the Geminiviridae Study Group of the International Committee on Taxonomy of Viruses (ICTV). Co-infections and extensive recombination events were identified in Brazilian sweepoviruses. Analysis of the recombination breakpoints detected within the sweepovirus dataset revealed that most recombination events occurred in the intergenic region (IR) and in the middle of the C1 open reading frame (ORF). Conclusions The genetic diversity of sweepoviruses was considerably greater than previously described in Brazil. Moreover, recombination analysis revealed that a genomic exchange is responsible for the emergence of sweepovirus species and strains and provided valuable new information for understanding the diversity and evolution of sweepoviruses.
URIhttp://hdl.handle.net/10261/59366
Identifiershttp://dx.doi.org/10.1186/1743-422X-9-241
Appears in Collections:(IHSM) Artículos
Files in This Item:
File Description SizeFormat 
1743-422X-9-241.xml114,52 kBXMLView/Open
1743-422X-9-241-S2.PDF49,29 kBAdobe PDFThumbnail
View/Open
1743-422X-9-241.pdf1,02 MBAdobe PDFThumbnail
View/Open
1743-422X-9-241-S1.PDF15,08 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.