Ras-Related Proto-Oncogenes are Transcripted in Leaves and Callus from Sugarbeet

Summary Northern analysis of RNAs, extracted from normal sugarbeet callus cultures (grown with growth regulators) and from leaves derived from the mother strain, when hybridized with a Xenopus c-Ki- ras probe, reveal the presence of two transcripts in the plant material. The level of RNA detected is slightly higher (approximately 2 fold) in callus culture, when compared with leaves from the mother strain. Involvement of cellular oncogenes in the control of plant cells cultured in vitro is suggested.