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Rearrangement of Genomic Segment 11 in Two Swine Rotavirus Strains

¹ Centro de Virologia Animal (CEVAN-CONICET), Serrano 661 (1414)
and² Instituto de Investigaciones Bioquimicas, Fundación Campomar, Antonio Machado 151 (1405), Buenos Aires, Argentina

We have recently reported the isolation of two group A swine rotaviruses each lacking normal genomic RNA segment 11 and showing instead one extra segment that migrated abnormally on gel electrophoresis. Hybridization studies performed with segment-specific probes and with a purified abnormal RNA segment showed that the extra bands had sequence homology to normal segment 11. Analysis of protein profiles of normal and rearranged strains showed that the gene product of segment 11 had no apparent change in its relative electrophoretic migration, suggesting that the rearranged genes remained functional.

Keywords: rotavirus, porcine, genome rearrangement, electropherotype

Received 1 September 1987; accepted 30 November 1987.