| contrasting genetic structure between two begomoviruses infecting the same leguminous hosts. | begomoviruses are whitefly-transmitted, ssdna plant viruses and are among the most damaging pathogens causing epidemics in economically important crops worldwide. wild/non-cultivated plants play a crucial epidemiological role, acting as begomovirus reservoirs and as 'mixing vessels' where recombination can occur. previous work suggests a higher degree of genetic variability in begomovirus populations from non-cultivated hosts compared with cultivated hosts. to assess this supposed host effect on ... | 2014 | 25028472 |
| synonymous site variation due to recombination explains higher genetic variability in begomovirus populations infecting non-cultivated hosts. | begomoviruses are ssdna plant viruses that cause serious epidemics in economically important crops worldwide. non-cultivated plants also harbour many begomoviruses, and it is believed that these hosts may act as reservoirs and as mixing vessels where recombination may occur. begomoviruses are notoriously recombination-prone, and also display nucleotide substitution rates equivalent to those of rna viruses. in brazil, several indigenous begomoviruses have been described infecting tomatoes followi ... | 2013 | 23136367 |
| tomato chlorotic mottle guyane virus: a novel tomato-infecting bipartite begomovirus from french guiana. | this is the first description of the complete genome sequence of a new bipartite begomovirus isolated from tomato (solanum lycopersicum) in french guiana, for which we propose the tentative name "tomato chlorotic mottle guyane virus" (tocmogfv). dna-a and -b nucleotide sequences of tocmogfv are only distantly related to known new world begomoviruses. they share the highest nucleotide sequence identity of 80% with the brazilian isolates of macroptilium yellow spot virus (macysv) and 73% with soyb ... | 2015 | 26255054 |
| characterization of tomato leaf curl purple vein virus, a new monopartite new world begomovirus infecting tomato in northeast brazil. | a new begomovirus species was identified from tomato plants with upward leaf curling and purple vein symptoms, which was first identified in the piaui state of northeast (ne) brazil in 2014. tomato leaf samples were collected in 2014 and 2016, and pcr with degenerate primers revealed begomovirus infection. rolling circle amplification and restriction enzyme digestion indicated a single genomic dna of ~ 2.6 kb. cloning and sequencing revealed a genome organization similar to dna-a components of n ... | 2017 | 29224131 |