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Título: | Combining Genetic and Transcriptomic Approaches to Identify Transporter-Coding Genes as Likely Responsible for a Repeatable Salt Tolerance QTL in Citrus |
Autor: | Asins, María J.; Bullones, Amanda; Raga, Verónica; Romero-Aranda, Remedios; Espinosa, Jesús CSIC ORCID; Triviño, Juan C.; Bernet, Guillermo P.; Traverso, José A. CSIC ORCID; Carbonell, Emilio A.; Claros, Gonzalo M.; Belver, Andrés CSIC ORCID | Palabras clave: | QTL analysis Citrus reshni Poncirus trifoliata Rootstock breeding Yield Cl− homeostasis Root growth Plasticity |
Fecha de publicación: | 1-nov-2023 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | International Journal of Molecular Sciences 24(21): 15759 (2023) | Resumen: | The excessive accumulation of chloride (Cl−) in leaves due to salinity is frequently related to decreased yield in citrus. Two salt tolerance experiments to detect quantitative trait loci (QTLs) for leaf concentrations of Cl−, Na+, and other traits using the same reference progeny derived from the salt-tolerant Cleopatra mandarin (Citrus reshni) and the disease-resistant donor Poncirus trifoliata were performed with the aim to identify repeatable QTLs that regulate leaf Cl− (and/or Na+) exclusion across independent experiments in citrus, as well as potential candidate genes involved. A repeatable QTL controlling leaf Cl− was detected in chromosome 6 (LCl-6), where 23 potential candidate genes coding for transporters were identified using the C. clementina genome as reference. Transcriptomic analysis revealed two important candidate genes coding for a member of the nitrate transporter 1/peptide transporter family (NPF5.9) and a major facilitator superfamily (MFS) protein. Cell wall biosynthesis- and secondary metabolism-related processes appeared to play a significant role in differential gene expression in LCl-6. Six likely gene candidates were mapped in LCl-6, showing conserved synteny in C. reshni. In conclusion, markers to select beneficial Cleopatra mandarin alleles of likely candidate genes in LCl-6 to improve salt tolerance in citrus rootstock breeding programs are provided. | Versión del editor: | https://doi.org/10.3390/ijms242115759 | URI: | http://hdl.handle.net/10261/338348 | DOI: | 10.3390/ijms242115759 | ISSN: | 1661-6596 | E-ISSN: | 1422-0067 |
Aparece en las colecciones: | (IHSM) Artículos (EEZ) Artículos |
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ijms-24-15759-v2.pdf | Article | 1,98 MB | Adobe PDF | Visualizar/Abrir |
ijms-2636745-supplementary.pdf | Supplementary Materials | 3,85 MB | Adobe PDF | Visualizar/Abrir |
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