Institute of Field and Vegetable Crops, M. Gorkog 30, 21000 Novi Sad, Serbia and Montenegro.
Presence of genes for restoration of male sterile PET-1 cytoplasm and mode of their action have been determined in 8 populations of wild Helianthus annuus and one H. petiolaris ssp. petiolaris Nutt. population. One dominant gene was found to be present in three wild H. annuus populations (ANN-2159, ANN-221 3 and ANN-2226) and the populations of Helianthus petiolaris ssp. petiolaris Nutt. (PET-2167). The remaining 5 populations (ANN-2143, ANN-2172, ANN-2173, ANN-2199 and ANN-2229) had two complementary dominant genes.
Sunflower, cms, fertility restoration, dominant gene, complementary genes
