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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Salto Grande. |
Fecha : |
21/02/2014 |
Actualizado : |
22/02/2014 |
Autor : |
Heinzen, W. ; Velozo, C. ; Carrión, R. ; Cardozo, L. ; Mandracho, H. ; Massa, E. |
Título : |
Elementos del ciclo hidrológico |
Fecha de publicación : |
1986 |
Fuente / Imprenta : |
Montevideo (Uruguay): Ministerio de Industria y Energía. Dirección Nacional de Minería y Geología. División aguas subterráneas, 1986. |
Páginas : |
70p. |
Idioma : |
Español |
Thesagro : |
AGUA DE RIEGO; AGUA SUPERFICIAL; AGUAS SUBTERRANEAS; CUENCAS HIDROGRAFICAS; CURSOS DE AGUA; GEOLOGIA; HIDROGEOLOGIA; MANEJO DEL SUELO; ORDENACION DE AGUAS; RETENCION DE AGUA POR EL SUELO; TIPOS DE SUELOS; URUGUAY; UTILIZACION DE LA TIERRA. |
Asunto categoría : |
-- |
Marc : |
LEADER 00950nam a2200325 a 4500 001 1013932 005 2014-02-22 008 1986 bl uuuu u00u1 u #d 100 1 $aHEINZEN, W. 245 $aElementos del ciclo hidrológico 260 $aMontevideo (Uruguay): Ministerio de Industria y Energía. Dirección Nacional de Minería y Geología. División aguas subterráneas$c1986 300 $a70p. 650 $aAGUA DE RIEGO 650 $aAGUA SUPERFICIAL 650 $aAGUAS SUBTERRANEAS 650 $aCUENCAS HIDROGRAFICAS 650 $aCURSOS DE AGUA 650 $aGEOLOGIA 650 $aHIDROGEOLOGIA 650 $aMANEJO DEL SUELO 650 $aORDENACION DE AGUAS 650 $aRETENCION DE AGUA POR EL SUELO 650 $aTIPOS DE SUELOS 650 $aURUGUAY 650 $aUTILIZACION DE LA TIERRA 700 1 $aVELOZO, C. 700 1 $aCARRIÓN, R. 700 1 $aCARDOZO, L. 700 1 $aMANDRACHO, H. 700 1 $aMASSA, E.
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INIA Salto Grande (SG) |
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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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