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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Las Brujas. |
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Fecha : |
14/11/2015 |
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Actualizado : |
05/12/2018 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MORA, F.; CASTILLO, D.; LADO, B.; MATUS, I.; POLAND, J.; BELZILE, F.; VON ZITZEWITZ, J.; DEL POZO, A. |
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Afiliación : |
BETTINA LADO LINDNER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Genome-wide association mapping of agronomic traits and carbon isotope discrimination in a worldwide germplasm collection of spring wheat using SNP markers. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Molecular Breeding, 2015, v,35, no.2, 12 p. |
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ISSN : |
1380-3743 |
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DOI : |
10.1007/s11032-015-0264-y |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT.
Association mapping has been proposed to identify polymorphisms involved in phenotypic variations and may prove useful in identifying interesting alleles for breeding purposes. Using this approach, a total of 382 cultivars and advanced lines of spring wheat obtained from three breeding programs (Chile, Uruguay and CIMMYT) were evaluated for plant height (PH), kernels per spike (KS), 1,000 kernel weight (TKW), grain yield and carbon isotope discrimination (Δ13C) and tested for genotyping-by-sequencing-derived SNP markers across the hexaploid wheat genome. A Bayesian clustering approach via Markov chain Monte Carlo was performed to examine the genetic differentiation (FST) among different genetic groups. The results indicated the existence of two distinct and strongly differentiated genetic groups. Cluster I contained 215 genotypes (56.3 %), over 60 % (137/215) of which were collected from CIMMYT. Cluster II showed the highest FST value, according to 95 % credible interval. Linkage disequilibrium (LD) among SNPs was calculated for the A, B and D genomes and at the whole-genome level. LD decayed over a longer genetic distance for the D genome than for the A and B genomes. In the A and B genomes, LD declined to 50 % of its initial value at about 2 cM. In the D genome, LD was much more extensive, declining to 50 % of its initial value only at 22 cM. In the whole genome, LD declined to 50 % of its initial value at an average of 4 cM. Important genomic regions associated with complex traits in spring wheat were identified. Selection on these regions may increase the efficiency of the current breeding programs. Although most of the associations were environment specific, some stable associations were detected for Δ13C, KS, PH and TKW. Chromosomes 1A, 3A, 4A and 5A were the most important chromosomes, as they comprised quantitative trait loci (QTL) for Δ13C, a trait that can be used as an indirect tool for increased water-use efficiency in wheat. Environment-specific genomic regions were detected, indicating the presence of QTL-by-environment interaction. To produce suitable genotypes under contrasting water availability conditions, QTL × E interactions (and genotype-by-environment interaction) should be considered in the current spring wheat breeding program.
© 2015, Springer Science+Business Media Dordrecht. MenosABSTRACT.
Association mapping has been proposed to identify polymorphisms involved in phenotypic variations and may prove useful in identifying interesting alleles for breeding purposes. Using this approach, a total of 382 cultivars and advanced lines of spring wheat obtained from three breeding programs (Chile, Uruguay and CIMMYT) were evaluated for plant height (PH), kernels per spike (KS), 1,000 kernel weight (TKW), grain yield and carbon isotope discrimination (Δ13C) and tested for genotyping-by-sequencing-derived SNP markers across the hexaploid wheat genome. A Bayesian clustering approach via Markov chain Monte Carlo was performed to examine the genetic differentiation (FST) among different genetic groups. The results indicated the existence of two distinct and strongly differentiated genetic groups. Cluster I contained 215 genotypes (56.3 %), over 60 % (137/215) of which were collected from CIMMYT. Cluster II showed the highest FST value, according to 95 % credible interval. Linkage disequilibrium (LD) among SNPs was calculated for the A, B and D genomes and at the whole-genome level. LD decayed over a longer genetic distance for the D genome than for the A and B genomes. In the A and B genomes, LD declined to 50 % of its initial value at about 2 cM. In the D genome, LD was much more extensive, declining to 50 % of its initial value only at 22 cM. In the whole genome, LD declined to 50 % of its initial value at an average of 4 cM. Important genomic regions assoc... Presentar Todo |
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Palabras claves : |
CARTOGRAFÍA GENÉTICA; ESTRÉS HÍDRICO; ESTRUCTURA GENÉTICA; LOCUS DE UN CARÁCTER CUANTITATIVO; MAPEO ASOCIATIVO; MAPEO DE QTLs; MAPEO POR ASOCIACIÓN; QTL; QUANTITATIVE TRAIT LOCI DETECTION. |
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Thesagro : |
FITOMEJORAMIENTO; SEQUIA; TRIGO; TRITICUM AESTIVUM. |
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Asunto categoría : |
--
F30 Genética vegetal y fitomejoramiento |
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Marc : |
LEADER 03527naa a2200385 a 4500
001 1053879
005 2018-12-05
008 2015 bl uuuu u00u1 u #d
022 $a1380-3743
024 7 $a10.1007/s11032-015-0264-y$2DOI
100 1 $aMORA, F.
245 $aGenome-wide association mapping of agronomic traits and carbon isotope discrimination in a worldwide germplasm collection of spring wheat using SNP markers.$h[electronic resource]
260 $c2015
520 $aABSTRACT. Association mapping has been proposed to identify polymorphisms involved in phenotypic variations and may prove useful in identifying interesting alleles for breeding purposes. Using this approach, a total of 382 cultivars and advanced lines of spring wheat obtained from three breeding programs (Chile, Uruguay and CIMMYT) were evaluated for plant height (PH), kernels per spike (KS), 1,000 kernel weight (TKW), grain yield and carbon isotope discrimination (Δ13C) and tested for genotyping-by-sequencing-derived SNP markers across the hexaploid wheat genome. A Bayesian clustering approach via Markov chain Monte Carlo was performed to examine the genetic differentiation (FST) among different genetic groups. The results indicated the existence of two distinct and strongly differentiated genetic groups. Cluster I contained 215 genotypes (56.3 %), over 60 % (137/215) of which were collected from CIMMYT. Cluster II showed the highest FST value, according to 95 % credible interval. Linkage disequilibrium (LD) among SNPs was calculated for the A, B and D genomes and at the whole-genome level. LD decayed over a longer genetic distance for the D genome than for the A and B genomes. In the A and B genomes, LD declined to 50 % of its initial value at about 2 cM. In the D genome, LD was much more extensive, declining to 50 % of its initial value only at 22 cM. In the whole genome, LD declined to 50 % of its initial value at an average of 4 cM. Important genomic regions associated with complex traits in spring wheat were identified. Selection on these regions may increase the efficiency of the current breeding programs. Although most of the associations were environment specific, some stable associations were detected for Δ13C, KS, PH and TKW. Chromosomes 1A, 3A, 4A and 5A were the most important chromosomes, as they comprised quantitative trait loci (QTL) for Δ13C, a trait that can be used as an indirect tool for increased water-use efficiency in wheat. Environment-specific genomic regions were detected, indicating the presence of QTL-by-environment interaction. To produce suitable genotypes under contrasting water availability conditions, QTL × E interactions (and genotype-by-environment interaction) should be considered in the current spring wheat breeding program. © 2015, Springer Science+Business Media Dordrecht.
650 $aFITOMEJORAMIENTO
650 $aSEQUIA
650 $aTRIGO
650 $aTRITICUM AESTIVUM
653 $aCARTOGRAFÍA GENÉTICA
653 $aESTRÉS HÍDRICO
653 $aESTRUCTURA GENÉTICA
653 $aLOCUS DE UN CARÁCTER CUANTITATIVO
653 $aMAPEO ASOCIATIVO
653 $aMAPEO DE QTLs
653 $aMAPEO POR ASOCIACIÓN
653 $aQTL
653 $aQUANTITATIVE TRAIT LOCI DETECTION
700 1 $aCASTILLO, D.
700 1 $aLADO, B.
700 1 $aMATUS, I.
700 1 $aPOLAND, J.
700 1 $aBELZILE, F.
700 1 $aVON ZITZEWITZ, J.
700 1 $aDEL POZO, A.
773 $tMolecular Breeding, 2015, v,35, no.2, 12 p.
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INIA Las Brujas (LB) |
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| 161. |  | VÁZQUEZ, D. El trigo nuestro de cada día. [Presentación Oral]. In Seminario Latinoamericano y del Caribe de Ciencia y Tecnología de los Alimentos, 19º.; Jornadas Uruguayas de Ciencia y Tecnología de Alimentos,11º.,7-10 de agosto de 2016 , Pocitos, Montevideo, Uruguay.| Tipo: Presentaciones Orales |
| Biblioteca(s): INIA La Estanzuela. |
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| 166. | | PÉREZ, O. Efecto del déficit hídrico en cinco cultivares de trigo: tesis Mag. Sc. Montevideo (UY): UdelaR, Facultad de Agronomía, 2015. Tesis aprobada por el tribunal integrado por el Dr. Omar Borsani, Dr. Andrés Berger y Dr. Daniel Miralles el 1º de octubre de 2015. Autor: Osvaldo Pérez González. Directora Dra. Marina Castro y Co-director Ing. Agr. Luis Viega. Tesis de...| Biblioteca(s): INIA La Estanzuela. |
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| 167. | | PÉREZ, C.A.; VILLAR, H.A.; VERO, S.; PEREYRA, S.; ALTIER, N. Efecto de la inoculación a campo de Trichoderma atroviride sobre la presión de inóculo de patógenos del trigo. In: JORNADA NACIONAL DE FITOPATOLOGÍA, 3; JORNADA NACIONAL DE PROTECCIÓN VEGETAL, 1., 3 SETIEMBRE 2015, MONTEVIDEO, URUGUAY. Libro de Resúmenes. Montevideo (Uruguay) : SUFIT, 2015. p. 32 Financiamiento: CSIC VUSP ? Mesa Nacional de Trigo - Lage y Cía.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Las Brujas. |
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| 168. | | MORA, F.; CASTILLO, D.; LADO, B.; MATUS, I.; POLAND, J.; BELZILE, F.; VON ZITZEWITZ, J.; DEL POZO, A. Genome-wide association mapping of agronomic traits and carbon isotope discrimination in a worldwide germplasm collection of spring wheat using SNP markers. Molecular Breeding, 2015, v,35, no.2, 12 p.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas. |
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| 169. | | LADO, B.; GONZÁLEZ BARRIOS, P.; QUINCKE, M.; SILVA, P.; GUTIÉREZ, L. Genomic selection in wheat breeding program modelling genotype by environment interaction using mixed models. In: International Wheat Conference, 9., 2015, Sydney, AU. Program and abstracts: posters. Sidney: ICMS Australasia, 2015. p. 168.| Biblioteca(s): INIA La Estanzuela. |
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| 170. | | SILVA, P.; CALVO-SALAZAR, V.; CONDON, F.; QUINCKE, M.; PRITSCH, C.; GUTIÉRREZ, L.; CASTRO, A.; HERRERA-FOESSEL, S.; VON ZITZEWITZ, J.; GERMAN, S. Effects and interactions of genes Lr34, Lr68 and Sr2 on wheat leaf rust adult plant resistance in Uruguay Euphytica, 2015, v. 204, p. 599?608.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas. |
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| Registros recuperados : 633 | |
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