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DC Field | Value | Language |
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dc.contributor.author | Caldelas, Cristina | - |
dc.contributor.author | Iglesia-Turiño, Santiago | - |
dc.contributor.author | Araus Ortega, José Luis | - |
dc.contributor.author | Bort Pie, Jordi | - |
dc.contributor.author | Febrero Ribas, Anna | - |
dc.date.accessioned | 2018-11-05T12:39:14Z | - |
dc.date.available | 2018-11-05T12:39:14Z | - |
dc.date.issued | 2009 | - |
dc.identifier.issn | 1677-9452 | - |
dc.identifier.uri | http://hdl.handle.net/2445/125840 | - |
dc.description.abstract | Population structure and genome-wide linkage disequilibrium (LD) were investigated in 192 Hordeum vulgare accessions providing a comprehensive coverage of past and present barley breeding in the Mediterranean basin, using 50 nuclear microsatellite and 1,130 DArT markers. Both clustering and principal coordinate analyses clearly sub-divided the sample into five distinct groups centred on key ancestors and regions of origin of the germplasm. For given genetic distances, large variation in LD values was observed, ranging from closely linked markers completely at equilibrium to marker pairs at 50 cM separation still showing significant LD. Mean LD values across the whole population sample decayed below r2 of 0.15 after 3.2 cM. By assaying 1,130 genome-wide DArT markers, we demonstrated that, after accounting for population substructure, current genome coverage of 1 marker per 1.5 cM except for chromosome 4H with 1 marker per 3.62 cM is sufficient for whole genome association scans. We show, by identifying associations with powdery mildew that map in genomic regions known to have resistance loci, that associations can be detected in strongly stratified samples provided population structure is effectively controlled in the analysis. The population we describe is, therefore, shown to be a valuable resource, which can be used in basic and applied research in barley. | - |
dc.format.extent | 12 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Brazilian Society of Plant Physiology | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1590/S1677-04202009000100002 | - |
dc.relation.ispartof | Brazilian Journal of Plant Physiology, 2009, vol. 21, num. 1, p. 1-12 | - |
dc.relation.uri | https://doi.org/10.1590/S1677-04202009000100002 | - |
dc.rights | cc-by-nc (c) Caldelas Molina, Cristina et al., 2009 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/3.0/es | - |
dc.source | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) | - |
dc.subject.classification | Efecte de l'estrès sobre les plantes | - |
dc.subject.classification | Fisiologia vegetal | - |
dc.subject.other | Effect of stress on plants | - |
dc.subject.other | Plant physiology | - |
dc.title | Physiological responses of Eichhornia crassipes [Mart.] Solms to the combined exposure to excess nutrients and Hg | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 589503 | - |
dc.date.updated | 2018-11-05T12:39:14Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) |
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589503.pdf | 389.12 kB | Adobe PDF | View/Open |
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