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| Registros recuperados: 280 | |
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| Picco,SJ; Seoane,A; Anchordoquy,JM; Anchordoquy,JP; Rosa,D; Fazzio,LE; Mattioli,GA; Furnus,CC. |
| Zinc is an essential trace element. It has been known that a non adequate level of zinc can alter not only gene expression but also a variety of cellular functions with severe consequences on animal health. Little is known about the role of zinc on the reproductive performance of bovines, especially in oocyte maturation. The objective of the present study was to evaluate the impact of different zinc concentrations added to culture medium, on the DNA integrity of bovine cumulus cells during in vitro maturation of oocytes. Cumulus-oocyte coplexes obtained from an abattoir were cultured in IVM mediums containing 30 (G1), 70 (G2), 110 (G3) and 150 (G4) μg/dl. At the end of IVM, cumulus cells were processed for Comet Assay. Result obtained with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zinc; Cumulus cells; Comet assay. |
| Ano: 2008 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332008000200004 |
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| Castagnaro,Atilio Pedro; Filippone,María Paula; Noguera,Aldo Sergio; Perera,María Francisca; Vellicce,Gabriel Ricardo; Mamaní,Alicia Inés; Ontivero,Marta Inés; Arias,Marta Eugenia; Racedo,Josefina; García,María Gabriela; Paz,Nora; Díaz,María Elena; Sendín,Lorena Noelia; Pardo,Esteban Mariano; Orce,Ingrid Georgina; Rocha,Carla María Lourdes; Sepúlveda Tusek,Mlena; Martínez Zamora,Gustavo; Salazar,Sergio Miguel; Dantur,Karina Inés; Rigano,Luciano; Torres,Pablo; Chalfoun,Nadia Regina; Maraño,María Rosa; Vojnov,Adrián; Ploper,Leonardo Daniel; Díaz Ricci,Juan Carlos. |
| En 1994 se conformó un grupo de investigación científica y desarrollo tecnológico guiado por la demanda del sector agroindustrial de la región del noroeste argentino, que además de las consideraciones económicas intrínsecas del proceso productivo, tuvo en cuenta para sus investigaciones, aspectos sociales y ambientales. Las premisas conceptuales del trabajo científico fueron el estudio, la preservación y el aprovechamiento de la biodiversidad, en conjunción con la búsqueda continua de alternativas de manejo fitosanitario lo menos reñidas posible con la salud humana y ambiental. Fue así que en 1997 se inició el primer Programa Nacional de Mejoramiento Genético de la Frutilla en Argentina, que desde el INSIBIO (CONICET-UNT) en Tucumán coordinó el trabajo de... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Bioproductos; Caña de azúcar; Citrus; Cultivo de tejidos y micropropagación; EEAOC; Frutilla; INSIBIO; Marcadores moleculares; Mejoramiento genético molecular; Soja; Transformación de plantas. |
| Ano: 2011 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332011000100016 |
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| Spara,F; Abbott,L; Wolff,R; Vernengo,E. |
| Phalaris aquatica L. (falaris bulbosa) es una forrajera perenne que posee rusticidad aún en ambientes poco favorables, produciendo una masa de forraje de excelentes propiedades nutricionales. Esta especie es tetraploide, alógama y heterogénea, y presenta gran variabilidad genotípica. El objetivo del presente estudio fue determinar parámetros genéticos para caracteres morfológicos y reproductivos durante tres años. Se realizó una prueba de progenie con 10 clones durante 2010, 2011 y 2012 en un DBCA con tres repeticiones. Los caracteres medidos fueron: número de panojas por planta (NP), largo de hoja bandera (LHB), ancho de hoja bandera (AHB), largo de panoja (LP), peso de panoja (PP), número de semillas por panoja (NS) y peso de 1000 semillas (P1000). Se... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Repetibilidad; Heredabilidad; Correlaciones fenotípicas; Falaris bulbosa. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332014000100004 |
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| Gutierrez,A; Rueda,F; Cantamutto,M; Poverene,M. |
| Helianthus petiolaris and H. annuus are exotic invaders that have spread widely in central Argentina in the last 70 years. As other annuals of the same genus, these species are outcrossers bearing a sporophytic self-incompatible mechanism. We investigated the ability to self-pollinate in plants of five accessions of each species, its influence on some reproductive traits, and compared to the cultivated sunflower, in which breeding for self-compatibility has been very successful. Plants were allowed to self-pollinate in bagged heads, manually forced to self-pollinate or allowed to cross-pollinate. Although both invasive species were confirmed as self-incompatible, some plants within most accessions were able to self-pollinate. There was no significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gene flow; Mating system; Seed set; Self-compatibility; Sporophytic SI. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332014000300001 |
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| Miladinovic,D; Dedic,B; Quiróz,F; Alvarez,D; Poverene,M; Cantamutto,M. |
| The parasitic weed Orobanche cumana Wallr. (broomrape) is one of the major limiting factors in worldwide sunflower production. However, it is absent in the centre of origin and in the sunflower crop areas of América. It has not yet been elucidated if O. cumana naturalization in sunflower habitats in Argentina is restricted as a result of either abiotic constraints or resistance in grown commercial cultivars. The aim of the present study was to assess the degree of resistance of commercial sunflower cultivars grown in Argentina to O. cumana. More than 95% of the tested sunflower cultivars were, in general, susceptible to broomrape attack. Although three cultivars were found to evidence an acceptable response to broomrape attack, only one of them showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broomrape; Incidence; Severity. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332012000100004 |
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| Bonamico,N.C; Di Renzo,M.A; Borghi,M.L; Ibañez,M.A; Díaz,D.G; Salerno,J.C; Balzarini,M.G. |
| El índice de severidad de enfermedad (ISE), un indicador de resistencia multidimensional, es una media ponderada de la severidad e incidencia de la enfermedad del maíz causada por el Mal de Río Cuarto Virus (MRCV). En el presente estudio se realizó un mapeo por intervalo con el objetivo de identificar loci de caracteres cuantitativos o QTL ("quantitative trait loci") asociados con el ISE del Mal de Río Cuarto (MRC) en una población de líneas endocriadas recombinantes (RILs) de maíz evaluadas en ambientes donde la enfermedad es endémica. Los resultados sugieren que algunas regiones genómicas (cromosomas 1, 4, 6, 8 y 10) tienen un efecto significativo sobre la reacción al MRCV. Alrededor del 40% de los intervalos significativos coinciden con aquellos... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Maíz; Líneas endocriadas recombinantes; Índice de severidad de enfermedad; Microsatélites; Enfermedad viral. |
| Ano: 2013 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332013000300002 |
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| Urbano,L; Portilla,E.C; Builes,J.J; Gusmão,L; Sierra-Torres,C.H. |
| Genetic markers with allele distribution differences in human populations provide human ancestry information that can be used to evaluate admixture proportions in different ethnic groups, including stratification in genetic association studies. The aim of this study was to determine the African, European and Native American admixture proportion by making use of 46 insertion-deletion informative ancestry record markers set in 500 Latin American people in the Department of Cauca, Colombia. Allelic frequencies were established, Hardy Weinberg test was performed, comparisons in genetic distances among population groups were estimated using Arlequin v 3.5, and STRUCTURE v 2.3.4 software was used to determine the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic ancestry; InDels; AIMs; Latin America; Human populations. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332016000300004 |
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| Registros recuperados: 280 | |
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