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)
20 May 2025
Chilean growers embrace the Humic strategy to enhance cherry color, size, and uniformity. Results from the 2023 and 2024 seasons confirm higher quality, productive yield and profitability using Revital®, Potaliq® and Humic Kolour®, successfully tested across Europe.
13 Jun 2024
The association of intensive orchards with bidimensional canopies and good accessibility to canopy by labour and machines is essential to reduce the cost of production. In cherry the increase of harvest rate increased by 72% when UFO was compared with the traditional open center.
21 May 2026
A study in China clarifies how ethylene and PavSPL7 regulate sweet cherry softening. This transcription factor limits cell wall degradation, improving fruit firmness, postharvest quality and potential shelf life for more efficient cherry supply chains worldwide.
21 May 2026
Chilean cherries are entering a new phase shaped by quality, agronomic precision and the demands of the Chinese market. From orchard management to post-harvest, Chile is focusing on uniform, large, competitive fruit with strong commercial value in the global market.
