As is well known, TCP proteins are plant-specific transcription factors that play an important role in plant and fruit growth and development. Despite the known significance of these transcription factors in general plant development, their specific role in cherry fruit growth remains largely unknown.
The study conducted by the research group of the College of Horticulture at Sichuan Agricultural University in China explored the potential role of TCP transcription factors in cherry fruit growth and development.
Thirteen members of the PavTCP family were identified within the sweet cherry plant, with two, PavTCP1 and PavTCP4 , containing potential target sites for Pav-miR159, Pav-miR139a and Pav-miR139b-3p. Analysis of cis-acting elements and prediction of Arabidopsis homology show that the PavTCP family comprises many light-sensitive elements.
It was found that PavTCP1 and PavTCP3 homologues in Arabidopsis TCP proteins are crucial for light responses. Shading experiments showed distinct correlation patterns between PavTCP1 , 2 and 3 and total anthocyanins, soluble sugars and soluble solids in cherry fruits.
These observations suggest that these genes may contribute significantly to the light responses of sweet cherries. In particular, PavTCP1 could play a key role, potentially mediated by Pav-miR159, Pav-miR139a and Pav-miR139b-3p.
This study is the first to reveal the potential function of TCP transcription factors in the light responses of cherry fruits, paving the way for future investigations into the role of this family of transcription factors in plant fruit development.
Source: Chen, C., Zhang, Y., Chen, Y. et al. Sweet cherry TCP gene family analysis reveals potential functions of PavTCP1, PavTCP2 and PavTCP3 in fruit light responses. BMC Genomics 25, 3 (2024). https://doi.org/10.1186/s12864-023-09923-z.
21 May 2024
Besides the drop in export volumes, a major problem was the delayed start of the harvest. Initially the winter estimate was 100 million crates, later adjusted to about 82.795 million crates, 90% of which were destined for the Chinese market.
10 Dec 2024
According to reports, abortion or pasma occurs 25-30 days after full flowering, when the fruit has already formed and then falls. A tree with an excessive load, for example, will naturally abort more fruits due to competition for photosynthates.
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.
