Genetic analysis of rootstock-mediated nitrogen (N) uptake and root-toshoot signalling at contrasting N availabilities in tomato
Selecting rootstocks for high nitrogen acquisition ability may allow decreased N fertilizer application without reducing tomato yields, minimizing environmental nitrate pollution. A commercial hybrid tomato variety was grafted on a genotyped population of 130 recombinant inbred lines (RILs) derive...
| Main Authors: | , , , , , , |
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| Format: | article |
| Language: | Inglés |
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Elsevier
2017
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11939/5731 http://www.sciencedirect.com/science/article/pii/S0168945217302510 |
| _version_ | 1855032325221384192 |
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| author | Asins, María J. Albacete, Alfonso Martínez-Andújar, Cristina Pérez-Alfocea, Francisco Dodd, Ian C. Carbonell, Emilio A. Dieleman, J. A. |
| author_browse | Albacete, Alfonso Asins, María J. Carbonell, Emilio A. Dieleman, J. A. Dodd, Ian C. Martínez-Andújar, Cristina Pérez-Alfocea, Francisco |
| author_facet | Asins, María J. Albacete, Alfonso Martínez-Andújar, Cristina Pérez-Alfocea, Francisco Dodd, Ian C. Carbonell, Emilio A. Dieleman, J. A. |
| author_sort | Asins, María J. |
| collection | ReDivia |
| description | Selecting rootstocks for high nitrogen acquisition ability may allow decreased N fertilizer application without
reducing tomato yields, minimizing environmental nitrate pollution. A commercial hybrid tomato variety was
grafted on a genotyped population of 130 recombinant inbred lines (RILs) derived from Solanum pimpinellifolium,
and compared with self- and non-grafted controls under contrasting nitrate availabilities (13.8 vs 1.0 mM) in the
nutrient solution.
Grafting itself altered xylem sap composition under N-sufficient conditions, particularly Na+ (8.75-fold increase)
concentration. N deprivation decreased shoot dry weight by 72.7% across the grafted RIL population,
and one RIL rootstock allowed higher total leaf N content than the best of controls, suggesting more effective N
uptake.
Sixty-two significant QTLs were detected by multiple QTL mapping procedure for leaf N concentration (LNC),
vegetative growth, and the xylem sap concentrations of Mn and four phytohormone groups (cytokinins, gibberellins,
salicylic acid and jasmonic acid). Only three LNC QTLs could be common between nitrogen treatments.
Clustering of rootstock QTLs controlling LNC, leaf dry weight and xylem sap salicylic acid concentration in
chromosome 9 suggests a genetic relationship between this rootstock phytohormone and N uptake efficiency.
Some functional candidate genes found within 2 Mbp intervals of LNC and hormone QTLs are discussed. |
| format | article |
| id | ReDivia5731 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | ReDivia57312025-04-25T14:45:53Z Genetic analysis of rootstock-mediated nitrogen (N) uptake and root-toshoot signalling at contrasting N availabilities in tomato Asins, María J. Albacete, Alfonso Martínez-Andújar, Cristina Pérez-Alfocea, Francisco Dodd, Ian C. Carbonell, Emilio A. Dieleman, J. A. Tomate, uso de nitratos, selección de variedades F30 Plant genetics and breeding Tomatoes Genetic improvement Nitrates Selecting rootstocks for high nitrogen acquisition ability may allow decreased N fertilizer application without reducing tomato yields, minimizing environmental nitrate pollution. A commercial hybrid tomato variety was grafted on a genotyped population of 130 recombinant inbred lines (RILs) derived from Solanum pimpinellifolium, and compared with self- and non-grafted controls under contrasting nitrate availabilities (13.8 vs 1.0 mM) in the nutrient solution. Grafting itself altered xylem sap composition under N-sufficient conditions, particularly Na+ (8.75-fold increase) concentration. N deprivation decreased shoot dry weight by 72.7% across the grafted RIL population, and one RIL rootstock allowed higher total leaf N content than the best of controls, suggesting more effective N uptake. Sixty-two significant QTLs were detected by multiple QTL mapping procedure for leaf N concentration (LNC), vegetative growth, and the xylem sap concentrations of Mn and four phytohormone groups (cytokinins, gibberellins, salicylic acid and jasmonic acid). Only three LNC QTLs could be common between nitrogen treatments. Clustering of rootstock QTLs controlling LNC, leaf dry weight and xylem sap salicylic acid concentration in chromosome 9 suggests a genetic relationship between this rootstock phytohormone and N uptake efficiency. Some functional candidate genes found within 2 Mbp intervals of LNC and hormone QTLs are discussed. 2017-08-20T09:13:28Z 2017-08-20T09:13:28Z 2017 article acceptedVersion Asins, M. J., Albacete, A., Martinez-Andujar, C., Pérez-Alfocea, F., Dodd, I. C., Carbonell, E. A., & Dieleman, J. A. (2017). Genetic analysis of rootstock-mediated nitrogen (N) uptake and root-to-shoot signalling at contrasting N availabilities in tomato. Plant Science. http://hdl.handle.net/20.500.11939/5731 10.1016/j.plantsci.2017.06.012 http://www.sciencedirect.com/science/article/pii/S0168945217302510 en Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Elsevier electronico |
| spellingShingle | Tomate, uso de nitratos, selección de variedades F30 Plant genetics and breeding Tomatoes Genetic improvement Nitrates Asins, María J. Albacete, Alfonso Martínez-Andújar, Cristina Pérez-Alfocea, Francisco Dodd, Ian C. Carbonell, Emilio A. Dieleman, J. A. Genetic analysis of rootstock-mediated nitrogen (N) uptake and root-toshoot signalling at contrasting N availabilities in tomato |
| title | Genetic analysis of rootstock-mediated nitrogen (N) uptake and root-toshoot signalling at contrasting N availabilities in tomato |
| title_full | Genetic analysis of rootstock-mediated nitrogen (N) uptake and root-toshoot signalling at contrasting N availabilities in tomato |
| title_fullStr | Genetic analysis of rootstock-mediated nitrogen (N) uptake and root-toshoot signalling at contrasting N availabilities in tomato |
| title_full_unstemmed | Genetic analysis of rootstock-mediated nitrogen (N) uptake and root-toshoot signalling at contrasting N availabilities in tomato |
| title_short | Genetic analysis of rootstock-mediated nitrogen (N) uptake and root-toshoot signalling at contrasting N availabilities in tomato |
| title_sort | genetic analysis of rootstock mediated nitrogen n uptake and root toshoot signalling at contrasting n availabilities in tomato |
| topic | Tomate, uso de nitratos, selección de variedades F30 Plant genetics and breeding Tomatoes Genetic improvement Nitrates |
| url | http://hdl.handle.net/20.500.11939/5731 http://www.sciencedirect.com/science/article/pii/S0168945217302510 |
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