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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
Fecha : |
05/09/2014 |
Actualizado : |
24/06/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
REYNO, R.; NARANCIO, R.; SPERANZA, P.; DO CANTO, J.; LOPEZ-CARRO, B.; HERNANDEZ, P.; BURGUEÑO, J.; REAL, D.; DALLA RIZZA, M. |
Afiliación : |
RAFAEL ALEJANDRO REYNO PODESTA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; RAFAEL NARANCIO FERES, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; JAVIER DO CANTO FAGUNDEZ, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; DANIEL REAL FERREIRO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; MARCO DALLA RIZZA VILARO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Molecular and cytogenetic characterization of a collection of bahiagrass (Paspalum notatum Flügge) native to Uruguay. |
Fecha de publicación : |
2012 |
Fuente / Imprenta : |
Genetic Resources and Crop Evolution, 2012, v. 59, no.8, p. 1823-1832. |
ISSN : |
0925-9864 |
DOI : |
10.1007/s10722-012-9806-x |
Idioma : |
Inglés |
Notas : |
Article history: Received: 9 August 2011 / Accepted: 30 January 2012 / Published online: 22 February 2012. |
Contenido : |
ABSTRACT.
Paspalum notatum is a subtropical grass present throughout America, and one of the main constituents of the natural grasslands in Uruguay. An
apomictic autotetraploid (2n = 4x = 40) is the most frequent cytotype. The occurrence of sexual diploids (2n = 2x = 20) has also been reported as well as the occasional presence of apomictic triploids and pentaploids in Argentina. In this study, ISSR (inter simple sequence repeats) molecular markers were used to analyze the genetic variability of 210 P. notatum individuals from a collection from Uruguay. Cytometric analyses and chromosome counts were used to assess the ploidy level of the individuals. All plants from Uruguay analyzed were tetraploid. Intra- and inter-population variability was found both in genomic DNA content and at the genotypic level. Several multilocus genotypes were shared among individuals within populations and among populations over moderate geographical ranges, at the same time, very dissimilar genotypes were found within the same population. Part of the genetic variance among populations can be explained by a broader scale geographic structure which is partly coincident with the traditionally recognized grassland management regions. In spite of the apparently high degree of genetic admixture within populations, groups of related genotypes seem to follow a broader geographical structure in the area under study. These results suggest that an efficient collection strategy for this apomictically reproducing species should include carefully planned intra- and inter-population sampling. A broader scale regional sampling strategy should also be considered although further studies will be required to define genetic structure at this level.
© 2012 Springer Science+Business Media B.V. MenosABSTRACT.
Paspalum notatum is a subtropical grass present throughout America, and one of the main constituents of the natural grasslands in Uruguay. An
apomictic autotetraploid (2n = 4x = 40) is the most frequent cytotype. The occurrence of sexual diploids (2n = 2x = 20) has also been reported as well as the occasional presence of apomictic triploids and pentaploids in Argentina. In this study, ISSR (inter simple sequence repeats) molecular markers were used to analyze the genetic variability of 210 P. notatum individuals from a collection from Uruguay. Cytometric analyses and chromosome counts were used to assess the ploidy level of the individuals. All plants from Uruguay analyzed were tetraploid. Intra- and inter-population variability was found both in genomic DNA content and at the genotypic level. Several multilocus genotypes were shared among individuals within populations and among populations over moderate geographical ranges, at the same time, very dissimilar genotypes were found within the same population. Part of the genetic variance among populations can be explained by a broader scale geographic structure which is partly coincident with the traditionally recognized grassland management regions. In spite of the apparently high degree of genetic admixture within populations, groups of related genotypes seem to follow a broader geographical structure in the area under study. These results suggest that an efficient collection strategy for this apomictically reprod... Presentar Todo |
Thesagro : |
MARCADORES GENÉTICOS; PASPALUM NOTATUM; PLANTAS FORRAJERAS. |
Asunto categoría : |
-- F30 Genética vegetal y fitomejoramiento |
Marc : |
LEADER 02728naa a2200289 a 4500 001 1051274 005 2021-06-24 008 2012 bl uuuu u00u1 u #d 022 $a0925-9864 024 7 $a10.1007/s10722-012-9806-x$2DOI 100 1 $aREYNO, R. 245 $aMolecular and cytogenetic characterization of a collection of bahiagrass (Paspalum notatum Flügge) native to Uruguay. 260 $c2012 500 $aArticle history: Received: 9 August 2011 / Accepted: 30 January 2012 / Published online: 22 February 2012. 520 $aABSTRACT. Paspalum notatum is a subtropical grass present throughout America, and one of the main constituents of the natural grasslands in Uruguay. An apomictic autotetraploid (2n = 4x = 40) is the most frequent cytotype. The occurrence of sexual diploids (2n = 2x = 20) has also been reported as well as the occasional presence of apomictic triploids and pentaploids in Argentina. In this study, ISSR (inter simple sequence repeats) molecular markers were used to analyze the genetic variability of 210 P. notatum individuals from a collection from Uruguay. Cytometric analyses and chromosome counts were used to assess the ploidy level of the individuals. All plants from Uruguay analyzed were tetraploid. Intra- and inter-population variability was found both in genomic DNA content and at the genotypic level. Several multilocus genotypes were shared among individuals within populations and among populations over moderate geographical ranges, at the same time, very dissimilar genotypes were found within the same population. Part of the genetic variance among populations can be explained by a broader scale geographic structure which is partly coincident with the traditionally recognized grassland management regions. In spite of the apparently high degree of genetic admixture within populations, groups of related genotypes seem to follow a broader geographical structure in the area under study. These results suggest that an efficient collection strategy for this apomictically reproducing species should include carefully planned intra- and inter-population sampling. A broader scale regional sampling strategy should also be considered although further studies will be required to define genetic structure at this level. © 2012 Springer Science+Business Media B.V. 650 $aMARCADORES GENÉTICOS 650 $aPASPALUM NOTATUM 650 $aPLANTAS FORRAJERAS 700 1 $aNARANCIO, R. 700 1 $aSPERANZA, P. 700 1 $aDO CANTO, J. 700 1 $aLOPEZ-CARRO, B. 700 1 $aHERNANDEZ, P. 700 1 $aBURGUEÑO, J. 700 1 $aREAL, D. 700 1 $aDALLA RIZZA, M. 773 $tGenetic Resources and Crop Evolution, 2012$gv. 59, no.8, p. 1823-1832.
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha actual : |
21/02/2014 |
Actualizado : |
19/02/2019 |
Tipo de producción científica : |
Documentos |
Autor : |
QUINTANS, G.; JIMENEZ DE ARECHAGA, C.; PITTALUGA, O.; ZAMIT, W.; PIÑEIRO, J.; DA CUÑA, K.; PIÑEIRO, A. |
Afiliación : |
GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINA JIMENEZ DE ARECHAGA BARAIBAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; OSCAR ALBERTO PITTALUGA GONZALEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WILFREDO SHAMIL ZAMIT DUARTE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JONATHAN ANDRES PIÑEIRO RODRIGUEZ MACEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; KIRBY EMIR DA CUÑA CASTRO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALVARO MARTIN PIÑEIRO RODRIGUEZ MACEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Efecto del manejo nutricional invernal sobre la actividad reproductiva en vaquillonas previo al entore. |
Fecha de publicación : |
2005 |
Fuente / Imprenta : |
ln: INIA TACUAREMBÓ. ESTACIÓN EXPERIMENTAL GLENCOE. Día de campo. Producción animal, pasturas y forestal. Estación Experimental Glencoe, Paysandú, octubre, 2005. Tacuarembó (Uruguay): INIA, 2005. |
Páginas : |
p. 51-53 |
Serie : |
(INIA Serie Actividades de Difusión ; 431) |
Idioma : |
Español |
Contenido : |
Objetivo: Evaluar el efecto de diferentes curvas de crecimiento invierno-primaveral sobre la actividad ovárica de vaquillonas, en el primer servicio a los 24 meses de edad. |
Palabras claves : |
ANIMAL PRODUCTION. |
Thesagro : |
GANADO BOVINO; SUELO BASALTICO; URUGUAY. |
Asunto categoría : |
L01 Ganadería |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/10471/1/SAD431p51-53.pdf
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Marc : |
LEADER 01089naa a2200265 a 4500 001 1025596 005 2019-02-19 008 2005 bl uuuu u00u1 u #d 100 1 $aQUINTANS, G. 245 $aEfecto del manejo nutricional invernal sobre la actividad reproductiva en vaquillonas previo al entore. 260 $c2005 300 $ap. 51-53 490 $a(INIA Serie Actividades de Difusión ; 431) 520 $aObjetivo: Evaluar el efecto de diferentes curvas de crecimiento invierno-primaveral sobre la actividad ovárica de vaquillonas, en el primer servicio a los 24 meses de edad. 650 $aGANADO BOVINO 650 $aSUELO BASALTICO 650 $aURUGUAY 653 $aANIMAL PRODUCTION 700 1 $aJIMENEZ DE ARECHAGA, C. 700 1 $aPITTALUGA, O. 700 1 $aZAMIT, W. 700 1 $aPIÑEIRO, J. 700 1 $aDA CUÑA, K. 700 1 $aPIÑEIRO, A. 773 $tln: INIA TACUAREMBÓ. ESTACIÓN EXPERIMENTAL GLENCOE. Día de campo. Producción animal, pasturas y forestal. Estación Experimental Glencoe, Paysandú, octubre, 2005. Tacuarembó (Uruguay): INIA, 2005.
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