Infectivity and complete nucleotide sequence of the genome of a South African isolate of maize streak virus.
AUTOR(ES)
Lazarowitz, S G
RESUMO
The complete infectious genome of a South African isolate of the geminivirus maize streak (MSV-S) has been cloned, characterized, and sequenced. Using an A. tumefaciens Ti plasmid delivery system, the cloned -2.7 kb single circular MSV component was shown to be necessary and sufficient for infection of maize. Based on sequence analysis of the infectious clone, MSV-S is highly homologous to the previously characterized Kenyan and Nigerian isolates. While the genomic organization of MSV-S has elements in common with each of these previously characterized isolates, it is identical to neither and its analysis addresses the discrepancies between them. The result is a somewhat simplified and unified picture of the viral genome, the structural organization of which is essentially identical to that of wheat dwarf virus.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=334623Documentos Relacionados
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