genomic heterogeneity of rice dwarf phytoreovirus field isolates and nucleotide sequences of variants of genome segment 12.electrophoretic profiles of the dsrnas of field isolates of rice dwarf virus (rdv) were compared with those of an isolate maintained at hokkaido university (rdv-h). unexpectedly, the genomic dsrnas of most of the field isolates showed distinct electrophoretic mobility profiles. this was the case even among isolates from the same region. genome segment 12 (s12) from some variants migrated faster than s12 from rdv-h. these rnas were converted to full-length cdnas and sequenced. s12 from all the va ...19948046386
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