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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 : |
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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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Registro original : |
INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
07/11/2019 |
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Tipo de producción científica : |
Cartillas |
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Autor : |
CARRACELAS, G.; MARCHESI, C.; LAVECCHIA, A. |
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Afiliación : |
JULIO GONZALO CARRACELAS GARRIDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CLAUDIA ELIZABETH MARCHESI GYERMAN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDRES PASCUAL LAVECCHIA GONZALEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Manejo del riego: retiro de agua y momento de cosecha |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
ln: INIA TACUAREMBÓ; PROGRAMA NACIONAL PRODUCCIÓN DE ARROZ. DÍA DE CAMPO, UNIDAD EXPERIMENTAL PASO FARÍAS Y RUTA 26 (CINCO SAUCES), 23 de febrero, 2012. Tacuarembó (Uruguay): INIA, 2012. |
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Páginas : |
p. 11-12 |
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Idioma : |
Español |
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Notas : |
Instituto Nacional de Investigación Agropecuaria, Uruguay (INIA). Programa Nacional de Arroz |
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Palabras claves : |
RICE (ORYZA SATIVA L.). |
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Thesagro : |
ARROZ; COSECHA; RIEGO. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/1191/1/112935230212094322.pdf
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Marc : |
LEADER 00731nam a2200193 a 4500
001 1026260
005 2019-11-07
008 2012 bl uuuu u0uu1 u #d
100 1 $aCARRACELAS, G.
245 $aManejo del riego$bretiro de agua y momento de cosecha
260 $aln: INIA TACUAREMBÓ; PROGRAMA NACIONAL PRODUCCIÓN DE ARROZ. DÍA DE CAMPO, UNIDAD EXPERIMENTAL PASO FARÍAS Y RUTA 26 (CINCO SAUCES), 23 de febrero, 2012. Tacuarembó (Uruguay): INIA$c2012
300 $ap. 11-12
500 $aInstituto Nacional de Investigación Agropecuaria, Uruguay (INIA). Programa Nacional de Arroz
650 $aARROZ
650 $aCOSECHA
650 $aRIEGO
653 $aRICE (ORYZA SATIVA L.)
700 1 $aMARCHESI, C.
700 1 $aLAVECCHIA, A.
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