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| Registros recuperados: 280 | |
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| Boffi,FM; Muriel,MG; López,RA; Ferreira,V; Seoane,A; Picco,SJ. |
| It is well known that two classical consequences of severe exercise are soreness and stiffness. Both consequences develop in the days following severe exercise. The objective of the present work was to establish the association between DNA damage, the energetic metabolism and the effects of the generation of oxygen free radicals in middle gluteal muscle of horses, measured after a severe exercise bout on a treadmill. Four thoroughbreds, ranging in aged from 3 to 4 years old were used for this study. The test consisted in warming-up, severe exercise, and cooling down. Venous blood samples were withdrawn via a catheter from the jugular vein before and at 5 min, 30 min, 45 min and 24 h post-exercise. Muscle biopsy samples were obtained from the middle gluteal... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2007 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332007000200001 |
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| Budeguer,C.J; Camadro,E.L; Erazzú,L.E. |
| Stevia rebaudiana (Bertoni) Bertoni (2n=2x=22) (Asteraceae family) is a species of economic value due to the presence of steviol glycosides in leaves -mainly stevioside and rebaudioside A- which are non-caloric sugars. In 2013, a collection of plants (genotypes) from four contrasting environments was established in Tucuman, Argentina, for evaluation under local conditions and, eventually, breeding purposes. As a first step, pollen viability and meiosis was studied in a sample of 56 plants. The percentage of pollen viability varied from medium (69.4%) to high (99.6%) in 52 of them, but from low (36.5%) to relatively low (51.5%) in the remaining four. The latter four plants also presented pollen grains of heterogeneous size, which were classified as n... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stevia; Pollen viability; Meiosis; Sporads. |
| Ano: 2018 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332018000200005 |
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| Poulsen Hornum,A.; Camadro,E.L.. |
| Argentina is center of diversity of approximately 35 wild taxonomic potato species that have wide geographical distribution. These species, which form polyploid series with 2n=2x=24 up to 2n=6x=72 (x=12), can reproduce both sexually and asexually. Most of them are diploid obligate outcrossers because they possess a one-locus gametophytic self-incompatibility system. In nature, wild potatoes can present both external and internal reproductive isolation barriers, within and between populations, which can be incomplete. Most accessions in germplasm banks have been assigned specific categories based on morphological phenotypes (taxonomic species concept), without taking into account the natural reproductive behavior of the sampled populations. One of these... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332014000300002 |
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| Antonini,Alicia G.; Corva,Santiago G.; Oyarzabal,María Inés. |
| En conejos para carne, la mayoría de los planes de selección están enfocados a incrementar el tamaño de camada y de una manera indirecta, la fertilidad, debido al descarte de hembras improductivas. En el conejar de la Facultad de Ciencias Agrarias y Forestales, UNLP, se evaluó la respuesta a la selección por prolificidad a partir del tamaño de camada nacida total (tct), nacida viva (tcv) y destetada (tcd) y se estimaron las heredabilidades y correlaciones genéticas. Se analizaron siete generaciones de selección que incluyeron 390 hembras con dos o más partos apareadas con 63 machos. Se estimaron los diferenciales de selección (DS) esperados, efectivos y estandarizados, las respuestas directas y correlacionadas, los índices entre los DS efectivos y DS... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Selección; Tamaño de camada; Conejos. |
| Ano: 2008 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332008000200001 |
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| Mudry,Marta Dolores; Nieves,Mariela. |
| Estudiar las características de variabilidad genética, organización social y biogeografía, permite nuevas interpretaciones del proceso especiogénico. En Primates en particular, en los 80, se desarrollan los primeros estudios citogenéticos en Argentina, empleando tinción estándar, bandas G, C y NOR, citogenética en vigencia en aquella época. Se caracterizan Cebus sp., Saimiri boliviensis, Aotus azarae y Callithrix jacchus (Cebidae); Ateles sp., Alouatta sp. (Atelidae) por ser las especies más frecuentes en zoológicos y bioterios. Al igual que en ejemplares de especies de nuestra fauna analizados por muestreo en vida silvestre, se estableció 2N y patrones de bandas G y C en cada especie. El análisis de reordenamientos cromosómicos comprometiendo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Primates; Ceboidea; Citogenética evolutiva; Evolución cromosómica. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332010000200014 |
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| Registros recuperados: 280 | |
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