Maize lethal necrosis viruses and other maize viruses in Rwanda
نویسندگان
چکیده
منابع مشابه
Lethal mutagenesis in viruses and bacteria.
In this work we study how mutations that change physical properties of cell proteins (stability) affect population survival and growth. We present a model in which the genotype is presented as a set folding free energies of cell proteins. Mutations occur upon replication, so stabilities of some proteins in daughter cells differ from those in the parent cell by amounts deduced from the distribut...
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Maize lethal necrosis (MLN) has emerged as a serious threat to food security in sub-Saharan Africa. MLN is caused by coinfection with two viruses, Maize chlorotic mottle virus and a potyvirus, often Sugarcane mosaic virus. To better understand the dynamics of MLN and to provide insight into disease management, we modeled the spread of the viruses causing MLN within and between growing seasons. ...
متن کاملTheory of lethal mutagenesis for viruses.
Mutation is the basis of adaptation. Yet, most mutations are detrimental, and elevating mutation rates will impair a population's fitness in the short term. The latter realization has led to the concept of lethal mutagenesis for curing viral infections, and work with drugs such as ribavirin has supported this perspective. As yet, there is no formal theory of lethal mutagenesis, although referen...
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Rice black-streaked dwarf virus was shown to contain ten dsRNA segments in a genome with an approximate molecular weight of 18.96 x IO8 or 19.66 x 10’. depending on the buffer employed for electrophoresis in polyacrylamide gels. In coelectrophoreses of genomes from rice black-streaked dwarf and maize rough dwarf virus, all segments coincided electrophoretically except segments 1, 3, and 10. In ...
متن کاملClose similarity between genome structures of rice black-streaked dwarf and maize rough dwarf viruses.
The complete nucleotide sequences of rice black-streaked dwarf virus (RBSDV) genome segments 8 (S8) and 7 (S7) were determined, and were found to have high sequence identities to the corresponding maize rough dwarf virus (MRDV) genome segments. RBSDV S8 and S7 consisted of 1927 and 2193 nucleotides, respectively. RBSDV S8 had a single long open reading frame (ORF) encoding 591 amino acids. RBSD...
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ژورنال
عنوان ژورنال: Plant Pathology
سال: 2020
ISSN: 0032-0862,1365-3059
DOI: 10.1111/ppa.13134