An evergrowing sweet cherry for research and breeding
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Date
2025-11-26
Authors
Hedhly, AfifMartínez Romera, Nerea
Gracia Alquézar, Ana Pilar
Marin, Juan
Arbeloa, Arancha
Garcia, Elena
Wünsch, Ana
Journal Title
Journal ISSN
Volume Title
Publisher
Frontiers Media SA.
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texto , revista , artículo , artículo originalAbstract
Evergrowing phenotypes in deciduous trees have only been described in three unrelated species: peach, hazelnut and pomegranate. These genotypes are a useful tool for forward genetics approaches aimed at understanding the processes that regulate seasonal growth and dormancy. Research in evergrowing peach lead to the identification of the DORMANCY ASSOCIATED MADS BOX transcription factors (DAMs) as regulators of dormancy in stone and pome fruits. In this work we present the breeding and preliminary characterization of an evergrowing (evg) sweet cherry genotype. This individual was obtained from in vitro embryo rescue of self-fertilization seeds, of a local self-compatible landrace. Unlike wild type sweet cherry, evg sweet cherry does not set buds in autumn and continues to grow throughout the winter. In contrast to evergrowing peach, no major structural deletion was observed in the tandemly arranged PavDAMs genes. However, specific expression profiles of these genes were observed in the evg sweet cherry. The specific polymorphisms previously observed in the PavDAMs of the parental cultivar, and the high level of inbreeding depression resulting from self-fertilization, suggest that the expression of homozygous recessive alleles might be the cause of the evergrowing phenotype. Ongoing work to fully characterize the underlying molecular mechanism regulating evg sweet cherry phenotype is discussed, highlighting its importance and utility as a research and breeding tool.
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Bibliographic citation
Hedhly, A., Martínez-Romera, N., Gracia, A. P., Marin, J., Arbeloa, A., García, E., & Wünsch, A. (2025). An evergrowing sweet cherry for research and breeding. Frontiers in Plant Science, 16. https://doi.org/10.3389/fpls.2025.1677862
AGROVOC subjects
Prunus aviumSalida de la latencia
Gen dominante
Endogamia
Planta perenne
Crecimiento
Sponsorship
Los autores declaran haber recibido apoyo financiero para la investigación y/o publicación de este artículo. Subvención PID2019-103985RR-I00 financiada por MICIU/AEI/10.13039/501100011033. Subvención PID2022-137105OR-I00 financiada por MICIU/AEI/10.13039/501100011033 y por la «Unión Europea Next GenerationEU/PRTR». Subvención PREP2022-000496 financiada por MICIU/AEI/10.13039/501100011033 y por «ESF+». Gobierno de Aragón A12_23R Financiación del grupo de investigación.