Sweet cherries are self-incompatible and cannot be fertilized by their own pollen. A gametophytic self-incompatibility (GSI) system determines fertility in sweet cherries and prevents pollination with own and genetically related pollen.
This mechanism is controlled by a multi-allelic S-locus coding for two genes involved in fertilization: the S-allele-specific ribonuclease (S-RNase) expressed in the female style and the S-specific F-box protein (SFB) in the male pollen. Since the beginning of the 20th century, systematic studies have been carried out to describe the fertilization relationships between sweet cherry cultivars.
Since then, information on the S-genotypes of sweet cherry cultivars has been constantly increasing. This information is very important for cherry growing, breeding, and breeding research. The S-genotypes of sweet cherry cultivars were collected by evaluating S-allele studies described in the literature. The S-genotypes of 1,700 sweet cherry accessions were recorded.
A summary of all the results of S-genotyping in sweet cherries can be found in "Self-incompatibility (S) genotypes of cultivated sweet cherries – An overview 2023-Update" published in the OpenAgrar repository, https://doi.org/10.5073/20230302-143854-0
Mirko Schuster, Susan Schröpfer, Henryk Flachowsky
Institute for Breeding Research on Fruit Crops, Julius Kühn-Institut (DE)
05 Dec 2025
Bloom Fresh cherries are transforming the global fruit market with new early and blush varieties. Grown in Chile, Spain, South Africa and France, premium selections like Cheery Glow and Cheery Treat meet rising demand from Asia, China and the United States.
19 Jun 2024
The bottles were found in five storage pits in the cellar of George Washington's mansion, 29 of which contained cherries. The bottles were extracted from the pits and refrigerated, and it is planned to subject them to scientific analysis, the statement said.
17 Jul 2026
Early heat, faster ripening and overlapping harvests across Vignola, Puglia and Trentino shaped the 2026 cherry campaign. Valfrutta Fresco and Agrintesa protected value, quality and grower returns through Vignola IGP cherries, organized supply and strong market demand.
17 Jul 2026
Bacterial canker of sweet cherry, caused by several Pseudomonas syringae pathogens, threatens orchard yield and longevity. This article examines causes, symptoms, spread, diagnosis, and integrated strategies for sustainable prevention and control in cherry orchards.
