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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
26/11/2019 |
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Actualizado : |
05/03/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DO CANTO, J.; STUDER, B.; FREI, U.; LÜBBERSTEDT, T. |
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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. |
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Título : |
Pattern of inheritance of a self-fertility gene in an autotetraploid perennial ryegrass (Lolium perenne) population. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Plant Breeding, 1 February 2020, Volume 139, Issue 1, Pages 207-213. Doi: 10.1111/pbr.12765 |
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DOI : |
10.1111/pbr.12765 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 29 November 2018 // Revised: 31 March 2019 // Accepted: 13 September 2019. |
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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. |
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Palabras claves : |
PERENNIAL RYEGRASS; SEGREGATION; SELF-FERTILITY; TETRAPLOID. |
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Asunto categoría : |
A50 Investigación agraria |
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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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INIA Tacuarembó (TBO) |
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| Registros recuperados : 58 | |
| 9. |  | REYNO, R.; DO CANTO, J.; REAL, D. Germplasm evaluation and frost tolerance improvement of Setaria sphacelata in Uruguay. In: Michalk, D.L; Millar, G.D.; Badgery, W.B.; Broadfoot, K.M.; eds. International Grassland Congress, 22., 15-19 September, Sydney (AT), 2013. Proceedings. Revitalising grasslands to sustain our communities 153-154| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA Tacuarembó. |
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| 13. | | MARTÍNEZ, S.; ESCALANTE, F.; DO CANTO, J. P3. Patología y selección por resistencia a Pyricularia oryzae en raigrás (Lolium multiflorum). [Poster]. Posters. In: Sociedad Uruguaya de Fitopatología (SUFIT). Jornada Uruguaya de Fitopatología, 7., Jornada Uruguaya de Protección Vegetal, 5., 10 noviembre 2023, Montevideo, Uruguay. Libro de resúmenes. 30 años SUFIT, 1993-2023. Montevideo (UY): Sociedad Uruguay de Fitopatología (SUFIT), 2023. p. 30. Autor correspondencia: e-mail: jdocanto@inia.org.uy| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Las Brujas. |
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| 18. | | DO CANTO, J.; REAL, D.; REYNO, R.; ALTIER, N. Evaluación de clones de Paspalum notatum en distintos ambientes: producción de forraje y semillas, y reacción frente Claviceps paspali / Evaluation of Paspalum notatum clones in different environments: forage and seed production, and tolerance to Claviceps paspali. [Poster] + [Resumen]. In: JORNADAS DE MEJORAMIENTO GENÉTICO DE FORRAJERAS, 2010, Lavallol, Buenos Aires, AR. [Actas]. [Lavallol, AR: UNLP. Instituto Fitotécnico de Santa Catalina], 2010.| Biblioteca(s): INIA Tacuarembó. |
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| 20. | | DO CANTO, J.; REYNO, R.; REAL, D.; REVELL, C. Seed softening patterns of forage legumes in a temperate/subtropical environment in Uruguay. Chilean Journal of Agricultural Research, 2013, v. 73, no. 1, p. 41-47.DOI: http://dx.doi.org/10.4067/S0718-58392013000100006 Hitory article: Received: 22 May 2012; Accepted: 15 November 2012. ACKNOWLEDGEMENTS: The authors wish to acknowledge the technicians Ana Viana, Ruben Merola, and Mauro Zarza for their assistance in the field and laboratory phases. Funding...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Tacuarembó. |
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| Registros recuperados : 58 | |
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