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Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity

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 wid...

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Autores principales: Garcia, Rosa María, Parra-Quijano, Mauricio, Iriondo, Jose María
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5534164/
https://www.ncbi.nlm.nih.gov/pubmed/28761779
http://dx.doi.org/10.7717/peerj.3494
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author Garcia, Rosa María
Parra-Quijano, Mauricio
Iriondo, Jose María
author_facet Garcia, Rosa María
Parra-Quijano, Mauricio
Iriondo, Jose María
author_sort Garcia, Rosa María
collection PubMed
description 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-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 characterization 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.
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spelling pubmed-55341642017-07-31 Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity Garcia, Rosa María Parra-Quijano, Mauricio Iriondo, Jose María PeerJ Agricultural Science 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-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 characterization 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. PeerJ Inc. 2017-07-27 /pmc/articles/PMC5534164/ /pubmed/28761779 http://dx.doi.org/10.7717/peerj.3494 Text en ©2017 Garcia et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Agricultural Science
Garcia, Rosa María
Parra-Quijano, Mauricio
Iriondo, Jose María
Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity
title Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity
title_full Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity
title_fullStr Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity
title_full_unstemmed Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity
title_short Identification of ecogeographical gaps in the Spanish Aegilops collections with potential tolerance to drought and salinity
title_sort identification of ecogeographical gaps in the spanish aegilops collections with potential tolerance to drought and salinity
topic Agricultural Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5534164/
https://www.ncbi.nlm.nih.gov/pubmed/28761779
http://dx.doi.org/10.7717/peerj.3494
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