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Título: | Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity |
Autor: | García, Rosa M.; Parra-Quijano, Mauricio; Iriondo, José María | Palabras clave: | Crop wild relative Ecogeographic representativeness Optimized collecting design Predictive characterization |
Fecha de publicación: | 2017 | Editor: | PeerJ | Citación: | PeerJ 5: e3494 (2017) | Resumen: | Drought, one of the most important abiotic stress factors limiting biomass, significantly reduces crop productivity. Salinization also affects the productivity of both irrigated and rain-fed wheat crops. Species of genus Aegilops can be considered crop wild relatives (CWR) of wheat and have been widely used as gene sources in wheat breeding, especially in providing resistance to pests and diseases. Five species (Ae. biuncialis, Ae. geniculata, Ae. neglecta, Ae. triuncialis and Ae. ventricosa) are included in the Spanish National Inventory of CWRs. This study aimed to identify ecogeographic gaps in the Spanish Network on Plant Genetic Resources for Food and Agriculture (PGRFA) with potential tolerance to drought and salinity. Data on the Spanish populations of the target species collected and conserved in genebanks of the Spanish Network on PGRFA and data on other population occurrences in Spain were compiled and assessed for their geo_x0002_referencing quality. The records with the best geo-referencing quality values were used to identify the ecogeographical variables that might be important for Aegilops distribution in Spain. These variables were then used to produce ecogeographic land characterization maps for each species, allowing us to identify populations from low and non-represented ecogeographical categories in ex situ collections. Predictive character_x0002_ization strategy was used to identify 45 Aegilops populations in these ecogeographical gaps with potential tolerance to drought and salinity conditions. Further efforts are being made to collect and evaluate these populations. | URI: | http://hdl.handle.net/10261/291255 | DOI: | 10.7717/peerj.3494 | E-ISSN: | 2167-8359 |
Aparece en las colecciones: | (INIA) Artículos |
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