Gel electrophoretic analysis of total
nucleic acid. Polyacrylamide gel electrophoresis (PAGE) was used to detect
dsRNAs of specific satRNA molecules.
Total nucleic acids (TNA) were extracted
(25) and analyzed by electrophoresis on
6% polyacrylamide gels (39:1, acrylamide:bisacrylamide) in TRIS-borate (TBE)
buffer at 300 V for 1.5 h. dsRNA forms of
satRNAs thus separated were compared to
RNA standards electrophoresed on the
same gel after staining with ethidium bromide and UV photography.