The study demonstrates that the correlation between human rotavirus subgroups I and II and short/long electrophoretic RNA patterns is not supported by a molecular basis.
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Challenges rotavirus subgroup-electrophoresis correlation assumptions; leaves open validation in human strains.
We analyzed the serological properties of two human wild-type cell culture-adapted rotaviruses (strains 308 and 46) and of 308 X 46 reassortants which were previously obtained and genetically characterized. Strain 308, exhibiting a so-called long RNA pattern, was found to belong to human rotavirus subgroup II, serotype 1, whereas strain 46, exhibiting a so-called short RNA pattern, represented subgroup I, serotype 2. Among the 308 X 46 reassortants we analyzed, two belonged to subgroup II, serotype 1, and exhibited short RNA patterns. This showed that the correlation observed between human subgroups I and II rotaviruses and the short and long electrophoretic patterns is not supported by any molecular basis (i.e., gene segment 10 or 11 was not involved in the subgroup specificity).
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Garbarg‐Chenon et al. (1986) studied this question.
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