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3. | | Quincke, M. Trigos con genética INIA : distintas ofertas para distintas situaciones ln: "Uruguay. Instituto Nacional de Investigación Agropecuaria (INIA). Estación Experimental La Estanzuela ""Alberto Boerger""". Aportes a la zafra de cultivos de invierno. La Estanzuela: INIA, 2011. p. 47-53 Serie Actividades de Difusión ; 646 : Documentos Online ; 153 También disponible en versión electrónicaBiblioteca(s): INIA La Estanzuela; INIA Las Brujas. |
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4. | | QUINCKE, M. Variedades de Grupo Trigo: opciones vigentes y nuevas para 2013. In: JORNADA DE CULTIVOS DE INVIERNO, 2013, La Estanzuela, Colonia, UY; Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. Programa Nacional de Cultivos de Secano. Herramientas para un manejo inteligente de trigos y cebadas La Estanzuela, Colonia, UY: INIA, 2013. p. 7-13. (Serie Actividades de Difusión; 720).Biblioteca(s): INIA La Estanzuela. |
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9. | | VERGES, R.P.; QUINCKE, M. Mejoramiento genético de trigo. ln: Cultivos de invierno: día de campo, 2004 Trabajos presentados. La Estanzuela, Colonia (Uruguay): INIA, 2004. p. 12-17. (INIA Serie Actividades de Difusión ; 384). INIA La EstanzuelaBiblioteca(s): INIA La Estanzuela. |
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10. | | LUIZZI, D.; QUINCKE, M.; GERMAN, S. Avances en el mejoramiento de trigo de La Estanzuela. In: SEMINARIO INTERNACIONAL DE TRIGO, 2014, La Estanzuela, Colonia, UY. GERMÁN, S., et al. (Org.). 1914-2014, un siglo de mejoramiento de trigo en La Estanzuela: un valioso legado para el futuro: presentaciones; resúmenes. La Estanzuela, Colonia, UY: INIA, 2014. p. 3.Biblioteca(s): INIA La Estanzuela. |
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| Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
26/11/2019 |
Actualizado : |
05/03/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
DO CANTO, J.; STUDER, B.; FREI, U.; LÜBBERSTEDT, T. |
Afiliación : |
JAVIER DO CANTO FAGUNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. 1Department of Agronomy, Iowa State University, Ames, IA, USA; BRUNO STUDER, Molecular Plant Breeding, Institute of Agricultural Sciences, ETH Zurich, Zurich, Switzerland.; URSULA FREI, Department of Agronomy, Iowa State.; THOMAS LÜBBERSTEDT, Department of Agronomy, Iowa State University, Ames, IA, USA. |
Título : |
Pattern of inheritance of a self-fertility gene in an autotetraploid perennial ryegrass (Lolium perenne) population. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
Plant Breeding, 1 February 2020, Volume 139, Issue 1, Pages 207-213. Doi: 10.1111/pbr.12765 |
DOI : |
10.1111/pbr.12765 |
Idioma : |
Inglés |
Notas : |
Article history: Received: 29 November 2018 // Revised: 31 March 2019 // Accepted: 13 September 2019. |
Contenido : |
Abstract: A mutation causing self-fertility (SF) in perennial ryegrass was studied at the tetraploid level. The aim of this work was to determine a) whether SF remains functional in a tetraploid population and b) whether the SF mutation expresses dominance in heterozygous pollen grains. A tetraploidized plant carrying SF alleles was self?pollinated to create a segregating F2 population. In the F2 individuals, pollen compatibility ranged between 38% and 84% showing that SF remained functional. The SF locus genotype was the main determinant of pollen compatibility explaining 78% of the variation. The observed segregation was significantly different from the expected under both SF being dominant or recessive models (P(x2)?0.001) and tended to be intermediate between them, indicating partial dominance or additive gene action. The frequency of the different genotypes suggested that pollen grains homozygous for the mutation have a competitive advantage over heterozygous pollen and that pollen compatibility is affected by the interaction with additional loci. The implications of our results for breeding polyploid grasses are discussed. |
Palabras claves : |
PERENNIAL RYEGRASS; SEGREGATION; SELF-FERTILITY; TETRAPLOID. |
Asunto categoría : |
A50 Investigación agraria |
Marc : |
LEADER 01962naa a2200229 a 4500 001 1060452 005 2020-03-05 008 2020 bl uuuu u00u1 u #d 024 7 $a10.1111/pbr.12765$2DOI 100 1 $aDO CANTO, J. 245 $aPattern of inheritance of a self-fertility gene in an autotetraploid perennial ryegrass (Lolium perenne) population.$h[electronic resource] 260 $c2020 500 $aArticle history: Received: 29 November 2018 // Revised: 31 March 2019 // Accepted: 13 September 2019. 520 $aAbstract: A mutation causing self-fertility (SF) in perennial ryegrass was studied at the tetraploid level. The aim of this work was to determine a) whether SF remains functional in a tetraploid population and b) whether the SF mutation expresses dominance in heterozygous pollen grains. A tetraploidized plant carrying SF alleles was self?pollinated to create a segregating F2 population. In the F2 individuals, pollen compatibility ranged between 38% and 84% showing that SF remained functional. The SF locus genotype was the main determinant of pollen compatibility explaining 78% of the variation. The observed segregation was significantly different from the expected under both SF being dominant or recessive models (P(x2)?0.001) and tended to be intermediate between them, indicating partial dominance or additive gene action. The frequency of the different genotypes suggested that pollen grains homozygous for the mutation have a competitive advantage over heterozygous pollen and that pollen compatibility is affected by the interaction with additional loci. The implications of our results for breeding polyploid grasses are discussed. 653 $aPERENNIAL RYEGRASS 653 $aSEGREGATION 653 $aSELF-FERTILITY 653 $aTETRAPLOID 700 1 $aSTUDER, B. 700 1 $aFREI, U. 700 1 $aLÜBBERSTEDT, T. 773 $tPlant Breeding, 1 February 2020, Volume 139, Issue 1, Pages 207-213. Doi: 10.1111/pbr.12765
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