Sweet potato feathery mottle virus (SPFMV, genus Potyvirus , family Potyviridae ), Sweet potato chlorotic stunt virus (SPCSV, genus Crinivirus , family Closteroviridae ) and sweet potato virus G (SPVG) were detected in naturally infected sweet potato plants grown in the Delta region in Egypt. Before this study, SPVG was reported only from China. Two isolates of SPFMV and one isolate of SPVG were characterized for the 3′-proximal genomic sequences. Phylogenetic analyses indicated that the SPFMV isolates belong to the ‘russet crack’ strain group (RC). Serological tests using monoclonal antibodies, and phylogenetic analysis of a partial sequence of the Hsp70 gene, indicated that the Egyptian SPCSV belongs to the so-called non-East African strain group of SPCSV.
Archives of Virology – Springer Journals
Published: Dec 1, 2003
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