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| Registros recuperados: 280 | |
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| Fatta,N.; Vazquez,M.; García,N.; Mascarini,A.; Grigioni,G.. |
| Petunia x hybrida, a floral summer of a economical importance in Buenos Aires, is nowadays produced with imported seed. The research presented is focused on the study of the feasibility to obtain locally competitive seed. The length of the floral pipe is a relevant character so the assay was designed in order to estimate the heredability, the number of genes intervener and the interactions with the date. The assay began with a F1 purchased from United States. In 2003, the F1 and F2 were sowed,739 individuals of F2 were placed in pots in three dates: 12/6, 26/6 and 8/7/2003 that were considered as blocks I, II and III respectively in a completely randomized design. It was assumed that the homocigotas would be situated in the tales of the F2 distribution,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic variance; Environmental variance; Seed production; Selection. |
| Ano: 2007 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332007000200002 |
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| Poli,M.N; López Miranda,L.A; Fernández Iriarte,P.J; Zanier,G.J; Iúdica,C.E. |
| Previous research has shown connections between the exposure to different agents and mutations in germinal and somatic cells. One of such agents, nitrate (NO3), can be potentially genotoxic for individuals who drink high nitrate well water, and may cause a subsequent impact on their health and on the whole ecosystem. The aim of this research was to conduct genotoxicity assays in somatic cells from people living in the northern area of Mar del Plata city, Argentina. The purpose of these experiments was, in turn, to establish the possible relationships between mutagenic effects and high nitrate water consumption. To this end, different diagnostic tests were carried out to detect potential genetic and/or chromosomal alterations. A non-exposed population equal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mutagenic agents; Nitrate; Chromosomal aberrations; Genotoxicity; Micronuclei. |
| Ano: 2012 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332012000100001 |
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| Dipierri,José E; Alfaro,Emma L; Bailliet,Graciela; Bravi,Claudio; Albeck,Maria E; Muzzio,Marina; Ramallo,Virginia; Motti,Josefina María Brenda. |
| El objetivo de este trabajo es profundizar el estudio de la estructura poblacional del NOA recurriendo al análisis de la distribución y frecuencia de apellidos por el método isonímico y a la utilización de marcadores genéticos a partir de un esfuerzo colaborativo de varias instituciones e investigadores. Para ello se utilizaron marcadores sanguíneos (ABO, HLA), cromosoma Y, ADNmt y análisis genómico total y se determinaron frecuencias alélicas y de haplogrupos, se analizó la diversidad genética intra e interpoblacional y se construyeron dendrogramas. Para evaluar el mestizaje en el NOA iniciado en la segunda mitad del siglo XVII se calcularon porcentajes de miscegenación usando como referencia frecuencias alélicas de las poblaciones parentales (europea,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apellidos; Marcadores moleculares; Estructura de población; NOA. |
| Ano: 2011 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332011000200001 |
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| Tomas,P.A; Rivero,M.N; Tomás,M.A. |
| Melilotus albus es una leguminosa naturalizada en Argentina con gran potencial como recurso forrajero para ser utilizado en ambientes marginales. El objetivo de este trabajo fue caracterizar 10 introducciones de la colección de INTA y de la FCA-UNL mediante marcadores moleculares. Cinco primers ISSR produjeron 52 bandas, 90 % de ellas fueron polimórficas, resultando todos los primers igualmente informativos. Los 8 loci SSR amplificados generaron 30 alelos, con un promedio de 3,8 alelos por locus, siendo altamente informativos la gran mayoría de ellos. En los análisis mediante técnicas numéricas la separación entre grupos no fue clara; los genotipos se congregan en grupos entremezclados. La mayor proporción de la variación se observó dentro de las... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Melilotus; Diversidad genética; Microsatélite; Forraje. |
| Ano: 2017 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332017000100003 |
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| Salerno,Juan Carlos; Kandus,Mariana; Boggio Ronceros,R.; Almorza,David. |
| In order to increase the efficiency in the production of maize hybrids seeds it is necessary high grain yield with a relative low cost of production. It needs an expansion of the basic knowledge of the heredity of the characters that may be developing new breeding technique. The balanced lethal system (BLS) permit to study the relative contribution of different chromosome segments to hybrid vigour due to the heterocigozity of certain chromosome segments while the rest of the genome go to homocigozity for continuous selfing . In this way, theses segments can be transfer to inbreed lines in order to increase the grain yield and tassel size with pollen production. The objective of this work was to transfer heterotic segments of a line regulated by a balanced... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2008 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332008000100008 |
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| Registros recuperados: 280 | |
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