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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
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Fecha : |
05/09/2014 |
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Actualizado : |
24/06/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
REYNO, R.; NARANCIO, R.; SPERANZA, P.; DO CANTO, J.; LOPEZ-CARRO, B.; HERNANDEZ, P.; BURGUEÑO, J.; REAL, D.; DALLA RIZZA, M. |
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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. |
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Título : |
Molecular and cytogenetic characterization of a collection of bahiagrass (Paspalum notatum Flügge) native to Uruguay. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Genetic Resources and Crop Evolution, 2012, v. 59, no.8, p. 1823-1832. |
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ISSN : |
0925-9864 |
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DOI : |
10.1007/s10722-012-9806-x |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 9 August 2011 / Accepted: 30 January 2012 / Published online: 22 February 2012. |
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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 |
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Thesagro : |
MARCADORES GENÉTICOS; PASPALUM NOTATUM; PLANTAS FORRAJERAS. |
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Asunto categoría : |
--
F30 Genética vegetal y fitomejoramiento |
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Marc : |
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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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| 3. |  | CASTILLO, A.; VAIO, M.; LÓPEZ CARRO, B.; DALLA RIZZA, M.; REYNO, R. Estrategia de mejoramiento genético en tréboles de importancia económica para aumentar la persistencia y la tolerancia al estrés abiótico. MV 5 - COMUNICACIONES LIBRES - MV. MEJORAMIENTO VEGETAL In: JOURNAL OF BASIC & APPLIED GENETICS, 2016, Vol.27, Iss. 1 (Supp.). XVI LATIN AMERICAN CONGRESS OF GENETICS, IV CONGRESS OF THE URUGUAYAN SOCIETY OF GENETICS, XLIX ANNUAL MEETING OF THE GENETICS SOCIETY OF CHILE, XLV ARGENTINE CONGRESS OF GENETICS, 9-12 October 2016. PROCEEDINGS. Montevideo (Uruguay): SAG, 2016. p. 283| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA Las Brujas. |
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| 4. | | CASTILLO, A.; LOPEZ-CARRO, B.; REYNO, R.; RIVAS, C.; BLANCO, P.H.; PÉREZ DE VIDA, F.; DALLA RIZZA, M. Manipulación in vitro de la poidía en vegetales. In: JORNADA TÉCNICA, VIII JORNADA DE AGROBIOTECNOLOGÍA. INIA LAS BRUJAS, 30 DE OCTUBRE DE 2014. UNIDAD DE BIOTECNOLOGÍA. Montevideo (Uruguay): INIA, 2014. 10-11 (Actividades de Difusión; 741)| Biblioteca(s): INIA Las Brujas. |
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| 5. | | REYNO, R.; NARANCIO, R.; SPERANZA, P.; DO CANTO, J.; LOPEZ-CARRO, B.; HERNANDEZ, P.; BURGUEÑO, J.; REAL, D.; DALLA RIZZA, M. Molecular and cytogenetic characterization of a collection of bahiagrass (Paspalum notatum Flügge) native to Uruguay. Genetic Resources and Crop Evolution, 2012, v. 59, no.8, p. 1823-1832. Article history: Received: 9 August 2011 / Accepted: 30 January 2012 / Published online: 22 February 2012.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : A - 2 |
| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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| Registros recuperados : 5 | |
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