Izhar, S., Division of Plant Genetics and Breeding, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel, A.R.C. Group, Department of Botany, University of Nottingham, University Park, Nottingham, MG7 2RD, United Kingdom
Power, J.B., Division of Plant Genetics and Breeding, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel, A.R.C. Group, Department of Botany, University of Nottingham, University Park, Nottingham, MG7 2RD, United Kingdom

Fusion was induced between leaf mesophyll protoplasts of a cytoplasmic male sterile (cms) and a fertile petunia line. The selection system was designed to allow only the growth of protoplasts possessing the genome of the fertile line. The majority of plants which were regenerated from protoplasts were phenotypically similar to the fertile line. Some of these plants were cytoplasmic hybrids (cybrids), combining the (S) cytoplasm from the male sterile line with the genome of the fertile line. © 1979.