Tetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production
13 pages, 2 figures, 5 tables, 54 references.
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| Format: | artículo biblioteca |
| Language: | English |
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Wiley-Blackwell
2013
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| Subjects: | Citrus, ABA, Adaptation, Polyploidy, Water deficit, |
| Online Access: | http://hdl.handle.net/10261/79909 |
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dig-irnas-es-10261-799092018-09-10T11:03:04Z Tetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production Allario, Thierry Brumós Fuentes, Javier Colmenero Flores, José M. Iglesias Fuentes, Domingo Pina, José A. Navarro, Luis Talón Cubillo, Manuel Ollitrault, Patrick Morillon, Raphael Citrus ABA Adaptation Polyploidy Water deficit 13 pages, 2 figures, 5 tables, 54 references. Whole-genome duplication, or polyploidy, is common in many plant species and often leads to better adaptation to adverse environmental condition. However, little is known about the physiological and molecular determinants underlying adaptation. We examined the drought tolerance in diploid (2x) and autotetraploid (4x) clones of Rangpur lime (Citrus limonia) rootstocks grafted with 2x Valencia Delta sweet orange (Citrus sinensis) scions, named V/2xRL and V/4xRL, respectively. Physiological experiments to study root-shoot communication associated with gene expression studies in roots and leaves were performed. V/4xRL was much more tolerant to water deficit than V/2xRL. Gene expression analysis in leaves and roots showed that more genes related to the response to water stress were differentially expressed in V/2xRL than in V/4xRL. Prior to the stress, when comparing V/4xRL to V/2xRL, V/4xRL leaves had lower stomatal conductance and greater abscisic acid (ABA) content. In roots, ABA content was higher in V/4xRL and was associated to a greater expression of drought responsive genes, including CsNCED1, a pivotal regulatory gene of ABA biosynthesis. We conclude that tetraploidy modifies the expression of genes in Rangpur lime citrus roots to regulate long-distance ABA signalling and adaptation to stress. This work was supported by the European ‘INCO’ project (FP6-2003-INCO-DEV-2 no. 015453) to T.A. and by funds from IVIA to J.B. Additional funds were provided by the Spanish Ministerio de Ciencia e Innovación-FEDER grant (AGL2007-65437-C04-01/AGR, AGL2008-00596/AGR and AGL2009-08339/AGR) and a Prometeo 2008/121 Generalidad Valenciana grant. Peer Reviewed 2013-07-19T07:43:25Z 2013-07-19T07:43:25Z 2013 2013-07-19T07:43:25Z artículo http://purl.org/coar/resource_type/c_6501 issn: 0140-7791 e-issn: 1365-3040 Plant, Cell and Environment 36(4): 856-868 (2013) http://hdl.handle.net/10261/79909 10.1111/pce.12021 en http://dx.doi.org/10.1111/pce.12021 open Wiley-Blackwell |
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IRNAS ES |
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España |
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ES |
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Bibliográfico |
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En linea |
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dig-irnas-es |
| tag |
biblioteca |
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Europa del Sur |
| libraryname |
Biblioteca del IRNAS España |
| language |
English |
| topic |
Citrus ABA Adaptation Polyploidy Water deficit Citrus ABA Adaptation Polyploidy Water deficit |
| spellingShingle |
Citrus ABA Adaptation Polyploidy Water deficit Citrus ABA Adaptation Polyploidy Water deficit Allario, Thierry Brumós Fuentes, Javier Colmenero Flores, José M. Iglesias Fuentes, Domingo Pina, José A. Navarro, Luis Talón Cubillo, Manuel Ollitrault, Patrick Morillon, Raphael Tetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production |
| description |
13 pages, 2 figures, 5 tables, 54 references. |
| format |
artículo |
| topic_facet |
Citrus ABA Adaptation Polyploidy Water deficit |
| author |
Allario, Thierry Brumós Fuentes, Javier Colmenero Flores, José M. Iglesias Fuentes, Domingo Pina, José A. Navarro, Luis Talón Cubillo, Manuel Ollitrault, Patrick Morillon, Raphael |
| author_facet |
Allario, Thierry Brumós Fuentes, Javier Colmenero Flores, José M. Iglesias Fuentes, Domingo Pina, José A. Navarro, Luis Talón Cubillo, Manuel Ollitrault, Patrick Morillon, Raphael |
| author_sort |
Allario, Thierry |
| title |
Tetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production |
| title_short |
Tetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production |
| title_full |
Tetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production |
| title_fullStr |
Tetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production |
| title_full_unstemmed |
Tetraploid Rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production |
| title_sort |
tetraploid rangpur lime rootstock increases drought tolerance via enhanced constitutive root abscisic acid production |
| publisher |
Wiley-Blackwell |
| publishDate |
2013 |
| url |
http://hdl.handle.net/10261/79909 |
| work_keys_str_mv |
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