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)
04 Feb 2025
Meda™ varieties have been evaluated in Europe for three seasons now. All have been selected with a minimum of 35-40 days post-harvest. Meda™'s is the only breeding programme that has used postharvest as a selection filter.
04 Dec 2023
Eight new cultivars have already been released since 2001, 'Jade', Achat', 'Spinell', 'Turmalin', 'Taurus', 'Rubellit', 'Jachim', and 'Boas'. Two new breeding clones are currently in multi-site testing and 87 clones are in stage II evaluation.
10 Jul 2026
Moldova’s late-season sweet cherries are entering peak sales with rising prices, export-grade quality and fresh opportunities across European markets. Weather delays, regional competition and selective demand are shaping a crucial July for growers and traders alike.
10 Jul 2026
The global cherry market in 2026 is shaped by larger crops, lower prices and sharp regional differences. From Italy to China, weather, quality, production, trade strategies and exports are redefining the balance of the international cherry season in key markets worldwide.
