News about Genetic improvement

Cherry cracking is also due to hormonal imbalances

Breeding

24 Jun 2024

Researchers from several Chinese institutes and universities summarised the progress made worldwide in understanding the effects of endogenous gibberellin and abscisic acid content in fruit and exogenous hormone treatments on fruit cracking.

Genome-wide association studies (GWAS) identify genes related to cherry size

Breeding

13 Mar 2024

11 and 12 candidate genes related to fruit size and cracking-related traits, respectively, were identified. The researchers also identified several candidate genes involved in phytohormone, calcium and cell wall metabolisms.

French genome-wide association studies identify 65 SNP-trait associations

Press review

07 Mar 2024

Using 116 sweet cherry accessions, researchers analysed 23 agronomic fruit quality traits. The research uses genotyping by sequencing (GBS) to identify genetic markers associated with improved fruit quality.

Pairwise: US start-up relies on CRISPR technology to create stone-free cherries

Press review

27 Feb 2024

The company is studying how to produce cherries without stone. We are therefore working on modifying the architecture of the plant,' says Tom Adams, CEO and co-founder of the company, 'so that it can be grown in a greenhouse like a blueberry, thus expanding the production area.

Blooming date is decided (at genetic level) before winter dormancy

Breeding

02 Jan 2024

Researchers at Michigan State University (USA) provide a comprehensive analysis of the flower development of sour cherries. Numerous transcriptional studies have shown that the regulation of flower initiation in rosaceous species is significantly influenced by hormonal balance.

An overview of S-alleles of cultivated sweet cherries

Breeding

21 Dec 2023

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 1,700 sweet cherry accessions were recorded.

Centro Fruticultura Sur leads collaboration on a rootstock genetic improvement program

Rootstocks

13 Dec 2023

As part of this project, 3 demonstration plots were created between 2021 and 2022 at the Universities of Concepción, La Frontera and Austral de Chile, with 10 cherry rootstock selections, plus 2 commercial controls: Gisela 12 and Colt.

Interspecific hybrids – as new sources for sweet and sour cherry breeding

Breeding

11 Dec 2023

At Dresden-Pillnitz interspecific crosses and backcrosses have been carried out over the last 20 years. The aims of this breeding program are to develop genotypes with new fruit characteristics and a higher level of resistance to biotic and abiotic stress.

How to increase fruit size? By silencing growth-limiting genes

Breeding

29 Nov 2023

In fruits in which PavKLUH was silenced, a decrease in fruit size was observed, due to less expansion of the mesocarp cells. By identifying a new gene encoding for PavKLUH, PavRAV2, a transcription factor capable of physically interacting with the PavKLUH promoter, was selected.

Decade-long study identifies more than one million polymorphisms on cherry genome

Breeding

24 Nov 2023

Phenotypic diversity was assessed from 2012 to 2020, revealing significant variability in several traits. A total of 1,767,106 single nucleotide polymorphisms were discovered, providing a detailed genetic map.