| novel sugarcane streak and sugarcane streak réunion mastreviruses from southern africa and la réunion. | the sugarcane infecting streak viruses (sisvs) are mastreviruses (family geminiviridae) belonging to a group of "african streak viruses" (afsvs) that includes the economically devastating maize streak virus (msv). although there are three currently described sisv species (sugarcane streak virus [ssv], sugarcane streak egypt virus [ssev] and sugarcane streak réunion virus [ssrv]), only one strain variant has been fully sequenced for each of these species and as a result very little is known about ... | 2008 | 18175043 |
| experimental evidence indicating that mastreviruses probably did not co-diverge with their hosts. | despite the demonstration that geminiviruses, like many other single stranded dna viruses, are evolving at rates similar to those of rna viruses, a recent study has suggested that grass-infecting species in the genus mastrevirus may have co-diverged with their hosts over millions of years. this "co-divergence hypothesis" requires that long-term mastrevirus substitution rates be at least 100,000-fold lower than their basal mutation rates and 10,000-fold lower than their observable short-term subs ... | 2009 | 19607673 |
| a high degree of african streak virus diversity within nigerian maize fields includes a new mastrevirus from axonopus compressus. | the a-strain of maize streak virus (msv-a; genus mastrevirus, family geminiviridae), the causal agent of maize streak disease, places a major constraint on maize production throughout sub-saharan africa. in west-african countries such as nigeria, where maize is not cultivated year-round, this msv strain is forced to overwinter in non-maize hosts. in order to both identify uncultivated grasses that might harbour msv-a during the winter season and further characterise the diversity of related maiz ... | 2014 | 24796552 |
| molecular diversity, geographic distribution and host range of monocot-infecting mastreviruses in africa and surrounding islands. | maize streak virus (msv), an important pathogen of maize in africa, is the most extensively studied member of the mastrevirus genus in the family geminiviridae. comparatively little is known about other monocot-infecting african mastreviruses, most of which infect uncultivated grasses. here we determine the complete sequences of 134 full african mastrevirus genomes from predominantly uncultivated poaceae species. based on established taxonomic guidelines for the genus mastrevirus, these genomes ... | 2017 | 28687345 |