9 documents found, page 1 of 1
Travel-associated international spread of Oropouche virus beyond the Amazon
Iani, Felipe Campos de Melo; Pereira, Felicidade Mota; Oliveira, Elaine Cristina de; Rodrigues, Janete Taynã Nascimento; Machado, Mariza HoffmannOropouche virus (OROV), first detected in Trinidad and Tobago in 1955, was historically confined to the Brazilian Amazon Basin. However, since late 2022, an increasing number of OROV cases have been reported across various regions of Brazil as well as in urban centers in Bolivia, Ecuador, Guyana, Colombia, Cuba, Panama, and Peru. In collaboration with Central Public Health Laboratories across Brazil, we integra...
World management of geminiviruses
Rojas, Maria R.; Macedo, Monica A.; Maliano, Minor R.; Soto-Aguilar, Maria; Souza, Juliana O.; Briddon, Rob W.; Kenyon, LawrenceManagement of geminiviruses is a worldwide challenge because of the widespread distribution of economically important diseases caused by these viruses. Regardless of the type of agriculture, management is most effective with an integrated pest management (IPM) approach that involves measures before, during, and after the growing season. This includes starting with resistant cultivars and virus- and vector-free ...
Establishment of three new genera in the family Geminiviridae: Becurtovirus, Er...
Zerbini, F. Murilo; Varsani, Arvind; Navas-Castillo, Jesús; Moriones, Enrique; Hernández-Zepeda, Cecilia; Idris, Ali; Brown, Judith K.The 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-...
Capulavirus and Grablovirus: two new genera in the family Geminiviridae
Murilo Zerbini, F.; Varsani, Arvind; Roumagnac, Philippe; Fuchs, Marc; Navas-Castillo, Jesús; Moriones, Enrique; Idris, Ali; Briddon, Rob W.Geminiviruses are plant-infecting single-stranded DNA viruses that occur in most parts of the world. Currently, there are seven genera within the family Geminiviridae (Becurtovirus, Begomovirus, Curtovirus, Eragrovirus, Mastrevirus, Topocuvirus and Turncurtovirus). The rate of discovery of new geminiviruses has increased significantly over the last decade as a result of new molecular tools and approaches (rolli...
Revision of Begomovirus taxonomy based on pairwise sequence comparisons
Zerbini, F. Murilo; Brown, Judith K.; Navas-Castillo, Jesús; Moriones, Enrique; Ramos-Sobrinho, Roberto; Silva, José C. F.; Fiallo-Olivé, ElviraViruses of the genus Begomovirus (family Geminiviridae) are emergent pathogens of crops throughout the tropical and subtropical regions of the world. By virtue of having a small DNA genome that is easily cloned, and due to the recent innovations in cloning and low-cost sequencing, there has been a dramatic increase in the number of available begomovirus genome sequences. Even so, most of the available sequences...
A genome-wide pairwise-identity-based proposal for the classification of viruse...
Zerbini, F. Murilo; Muhire, Brejnev; Martin, Darren P.; Brown, Judith K.; Navas-Castillo, Jesús; Moriones, Enrique; Rivera-Bustamante, RafaelRecent advances in the ease with which the genomes of small circular single-stranded DNA viruses can be amplified, cloned, and sequenced have greatly accelerated the rate at which full genome sequences of mastreviruses (family Geminiviridae, genus Mastrevirus) are being deposited in public sequence databases. Although guidelines currently exist for species-level classification of newly determined, complete mast...
Revisiting the classification of curtoviruses based on genome-wide pairwise ide...
Zerbini, F. Murilo; Varsani, Arvind; Martin, Darren P.; Navas-Castillo, Jesús; Moriones, Enrique; Hernández-Zepeda, Cecilia; Idris, AliMembers of the genus Curtovirus (family Geminiviridae) are important pathogens of many wild and cultivated plant species. Until recently, relatively few full curtovirus genomes have been characterised. However, with the 19 full genome sequences now available in public databases, we revisit the proposed curtovirus species and strain classification criteria. Using pairwise identities coupled with phylogenetic evi...
Alphasatellitidae: a new family with two subfamilies for the classification of ...
Murilo Zerbini, F.; Briddon, Rob W.; Martin, Darren P.; Roumagnac, Philippe; Navas-Castillo, Jesús; Fiallo-Olivé, Elvira; Moriones, EnriqueNanoviruses and geminiviruses are circular, single stranded DNA viruses that infect many plant species around the world. Nanoviruses and certain geminiviruses that belong to the Begomovirus and Mastrevirus genera are associated with additional circular, single stranded DNA molecules (~ 1-1.4 kb) that encode a replication-associated protein (Rep). These Rep-encoding satellite molecules are commonly referred to a...
Brazilian begomovirus populations are highly recombinant, rapidly evolving, and...
Rocha, Carolina S.; Castillo-Urquiza, Gloria P.; Lima, Alison T. M.; Silva, Fábio N.; Xavier, Cesar A. D.; Hora-Júnior, Braz T.The incidence of begomovirus infections in crop plants sharply increased in Brazil during the 1990s following the introduction of the invasive B biotype of the whitefly vector, Bemisia tabaci. It is believed that this biotype transmitted begomoviruses from noncultivated plants to crop species with greater efficiency than indigenous B. tabaci biotypes. Either through rapid host adap- tation or selection pressure...