Interspecific hybridization in sweet and sour cherry breeding
2013
Schuster, M. | Grafe, C. | Hoberg, E. | Schütze, W.
Interspecific crosses are a valuable possibility to enlarge the gene pool in cherry breeding and to insert new characteristics in cherry. The main goals in sweet and sour cherry breeding are fruit quality, resistance to biotic and abiotic stress and stable fruit set. A collection of seven wild cherries were evaluated for resistance to cherry leaf spot, Blumeriella jaapii, and anthocyanin content. The diploid species Prunus canescens for sweet cherry and the tetraploid species P. maackii for the sour cherry were used as donors for resistance to cherry leaf spot in different cross combinations. Currently F2/BC1 progenies were evaluated to study the inheritance of cherry leaf spot resistance. The composition and the content of anthocyanins showed large differences in the studied species. The wild species P. maackii has the largest spectrum of anthocyanins. New anthocyanin compounds have been found in F1 hybrids of P. cerasus × P. maackii.
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