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| Registros recuperados: 233 | |
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| Ranjan,Sanjeev Kumar; Mallick,Chandana Basu; Saha,Dipnarayan; Vidyarthi,Ambarish S; Ramani,Ranganathan. |
| The lac insects (Homoptera: Tachardiidae), belonging to the genus Kerria, are commercially exploited for the production of lac. Kerria lacca is the most commonly used species in India. RAPD markers were used for assessing genetic variation in forty-eight lines of Kerria, especially among geographic races, infrasubspecific forms, cultivated lines, inbred lines, etc., of K. lacca. In the 48 lines studied, the 26 RAPD primers generated 173 loci, showing 97.7% polymorphism. By using neighbor-joining, the dendrogram generated from the similarity matrix resolved the lines into basically two clusters and outgroups. The major cluster, comprising 32 lines, included mainly cultivated lines of the rangeeni form, geographic races and inbred lines of K. lacca. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: DNA fingerprinting; Genetic variation; Kerria; Lac insects; RAPD; Tachardiidae. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000300023 |
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| Meyer,Andréia da Silva; Garcia,Antonio Augusto Franco; Souza,Anete Pereira de; Souza Jr.,Cláudio Lopes de. |
| The objective of this study was to evaluate whether different similarity coefficients used with dominant markers can influence the results of cluster analysis, using eighteen inbred lines of maize from two different populations, BR-105 and BR-106. These were analyzed by AFLP and RAPD markers and eight similarity coefficients were calculated: Jaccard, Sorensen-Dice, Anderberg, Ochiai, Simple-matching, Rogers and Tanimoto, Ochiai II and Russel and Rao. The similarity matrices obtained were compared by the Spearman correlation, cluster analysis with dendrograms (UPGMA, WPGMA, Single Linkage, Complete Linkage and Neighbour-Joining methods), the consensus fork index between all pairs of dendrograms, groups obtained through the Tocher optimization procedure and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic divergence; Heterotic groups; AFLP; RAPD; Multivariate analysis. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000100014 |
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| Sera,Tumoru; Ruas,Paulo Maurício; Ruas,Claudete de Fátima; Diniz,Leandro Eugênio Cardamone; Carvalho,Valdemar de Paula; Rampim,Leandro; Ruas,Eduardo Augusto; Silveira,Sheila Recepute da. |
| Knowledge of the genetic variability among genotypes is important for the transfer of useful genes and to maximize the use of available germplasm resources. This study was carried out to assess the genetic variability of 14 elite Coffea arabica cultivars using random amplified polymorphic DNA (RAPD) associated with a prior digestion of genomic DNA with restriction endonucleases. The accessions were obtained from the Coffea collection maintained at the Instituto Agronômico do Paraná (IAPAR), located in Londrina, Paraná, Brazil. Twenty-four informative RAPD primers, used in association with restriction enzymes, yielded 330 reproducible and scorable DNA bands, of which 224 (68%) were polymorphic. The amplified products were used to estimate the genetic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; RAPD; Restriction endonucleases. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100010 |
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| García,Ana M.; Schrauf,Gustavo E.; González,Graciela; Poggio,Lidia; Naranjo,Carlos A.; Dupal,Marck P.; Spangenberg,Germán C.; Forster,John W.. |
| Bromus setifolius var. pictus (Hook) Skottsb., B. setifolius var. setifolius Presl. and B. setifolius var. brevifolius Ness are three native Patagonian taxa in the section Pnigma Dumort of the genus Bromus L. AFLP and RAPD analysis, in conjunction with genetic distance measurements and statistical techniques, revealed variation within this group and indicated that B. setifolius var. brevifolius was closely related to B. setifolius var. pictus, with both taxa being more distantly related to B. setifolius var. setifolius. Cytogenetic analysis confirmed the chromosomal number of B. setifolius var. pictus (2n = 70) and B. setifolius var. setifolius (2n = 28) and showed for the first time that B. setifolius var. brevifolius had 2n = 70. The combination of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: AFLP; Argentina; Bromus setifolius complex; Cytogenetics; Patagonia; RAPD. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200018 |
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| Becerra Velásquez,Viviana; Paredes Cárcamo,Mario; Rojo Meriño,Carmen; France Iglesias,Andrés; Franco Durán,Jorge. |
| The genus Metarhizium consists of a diverse group of asexual entomopathogenic fungi, which have a wide geographical distribution. The Chilean National Agricultural Research Institute (Instituto de Investigaciones Agropecuarias - INIA, Quilamapu Chile) has collected about 350 isolates of Metarhizium anisopliae var. anisopliae from central and southern Chile. These isolates have been partially characterized using morphological traits such as conidia size and shape, colony color, growth pattern and the efficiency of the isolates in controlling specific pests. However, further characterization with molecular markers could detect differences in DNA which could help to better understand the genetic diversity and structure of Chilean populations of this fungus.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Metarhizium; Genetic diversity; RAPD; SSR; ITS markers. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000100017 |
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| Prioli,Sônia M.A.P.; Prioli,Alberto J.; Júlio Jr.,Horácio F.; Pavanelli,Carla S.; Oliveira,Alessandra V. de; Carrer,Helaine; Carraro,Dirce M.; Prioli,Laudenir M.. |
| Astyanax fishes are among the most important food-web components of South America rivers. In the Iguaçu River basin, the Astyanax genus is represented mainly by endemic species. For millions of years, that hydrographic basin has been geographically isolated from the Paraná River basin by the Iguaçu Falls. Recently, a species from the Upper Paraná River basin identified as Astyanax bimaculatus was revised and described as a new species named Astyanax altiparanae Garutti & Britski, 2000. Fauna endemism and geographic isolation triggered interest in investigations to evaluate the identification and genetic relatedness among two A. altiparanae populations from the Upper Paraná River basin and the population identified as A. bimaculatus in the Iguaçu... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Astyanax; Fish; D-loop; Control region; Mitochondrial DNA; RAPD. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000400011 |
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| Barroso,Paulo Augusto Vianna; Geraldi,Isaias Olívio; Vieira,Maria Lúcia Carneiro; Pulcinelli,Carlos Eduardo; Vencovsky,Roland; Dias,Carlos Tadeu dos Santos. |
| In order to verify whether genetic distance (GD) is associated with population mean (PM), genetic variance (GV) and the proportion of superior progenies generated by each cross in advanced generations of selfing (PS), the genetic distances between eight soybean lines (five adapted and three non-adapted) were estimated using 213 polymorphic RAPD markers. The genetic distances were partitioned according to Griffing's Model I Method 4 for diallel analysis, i.e., GDij = GD+ GGDi+ GGDj + SGDij. Phenotypic data were recorded for seed yield and plant height for 25 out of 28 populations of a diallel set derived from the eight soybean lines and evaluated from F2:8 to F2:11 generations. No significant correlation for seed yield was detected between GD and GV, while... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soybean; Genetic distance; Molecular markers; RAPD; Prediction. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300020 |
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| Sosa-Gómez,Daniel R.. |
| The velvetbean caterpillar (VBC), Anticarsia gemmatalis Hübner, 1818 (Insecta: Lepidoptera: Noctuidae), is one of the most important New World soybean agro-ecosystems pests, occurring from 40° N in the USA to 39° S in Argentina. Information on the migration patterns of the VBC moth may be important for managing the resistance of VBC populations to insecticides or plants carrying the Bacillus thuringiensis insecticide genes, especially since sedentary populations have a higher potential to became resistant than migratory populations. We studied intraspecific variations of geographically distinct VBC populations in order to determine the genetic distance between them and to assess the variability of VBC populations from near the city of Londrina (Paraná (PR)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Molecular marker; RAPD; Gene flow; Soybean pest; Population structure. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300012 |
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| Silva,Maria Luciene da; Queiróz,Manoel Abílio de; Ferreira,Maria Aldete J da F; Buso,Gláucia SC. |
| Acessos de melancia do Banco de Germoplasma da Embrapa Semi-Árido, coletados a partir de sementes de polinização livre na Chapada Diamantina, em Irecê e em Vitória da Conquista, na Bahia, foram caracterizados através de descritores morfológicos e moleculares, adicionando-se ao grupo, como testemunha a cultivar Crimson Sweet. O experimento de campo, em blocos ao acaso com três repetições, foi conduzido na estação experimental da Embrapa Semi-Árido, em Petrolina-PE. Os dados obtidos foram submetidos à análise uni- e multivariada, com agrupamento pelo método de Tocher. Amostras de cinco a oito indivíduos de cada um dos 43 acessos avaliados, foram submetidas à análise molecular utilizando marcadores RAPD, obtidos através de seis primers. O polimorfismo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrullus lanatus; Descritores morfológicos; Marcadores moleculares; RAPD; Germoplasma. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362006000400002 |
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| Mota,José H; Yuri,Jony E; Resende,Geraldo M; Souza,Rovilson José de. |
| Caracteres morfológicos (altura da planta, largura da folha, número de folhas e ângulo de folhas), físico-químicos (sólidos solúveis, acidez total titulável e pH), produtivos (produção comercial e massa média de bulbos) e molecular (por meio de marcadores moleculares RAPD) foram estudados em alho (Allium sativum L.). Doze cultivares, seis seminobre (Gigante Curitibanos, Gigante Roxo, Gigante Roxão, Gravatá, Amarante e Cateto Roxo) e seis nobre (Caçador, Chonan, Contestado 12, Caçador 30, Caçador 40 e Quitéria 595) foram utilizadas. Os resultados da análise de similaridade entre as cultivares foram equivalentes, quando utilizadas características morfológicas, físico-químicas e produtivas ou moleculares, indicando que os métodos de caracterização tiveram o... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allium sativum L.; RAPD; Caracterização morfológica; Diversidade genética. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362006000200006 |
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| Radmann,Elizete Beatriz; Bianchi,Valmor João; Oliveira,Roberto P. de; Fachinello,José Carlos. |
| O objetivo deste trabalho foi caracterizar a diversidade genético-molecular, por marcadores RAPD, das dez principais cultivares de morangueiro utilizadas no País: Aromas, Bürkley, Camarosa, Campinas, Dover, Milsei-Tudla, Oso Grande, Santa Clara, Sweet Charlie e Vila Nova. O DNA foi extraído de folhas maduras, as análises RAPD foram realizadas com 26 primers e os produtos de amplificação separados por eletroforese. O coeficiente de Dice foi utilizado para estimar a similaridade genética entre as cultivares e o método UPGMA para gerar o fenograma por meio do NTSYS. Houve amplificação de fragmentos consistentes com 19 primers, tendo sido encontrado polimorfismo em 14. Dos 116 fragmentos gerados, 84 foram polimórficos. As cultivares foram classificadas em dois... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragaria x ananassa Duch.; RAPD; Fingerprint; Marcador molecular. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362006000100017 |
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| Conti,José Henrique; Minami,Keigo; Tavares,Flavio Cesar Almeida. |
| Caracteres morfológicos (forma dos dentes, ângulo da base e razão entre o comprimento e a largura do folíolo, cor da folha, posição da inflorescência em relação à folhagem e tamanho do cálice em relação ao fruto), agronômicos (grau de proteção da inflorescência pelas folhas, presença de "pescoço" no fruto, produção, número e peso médio de frutos, teor de sólidos solúveis, pH, textura e cor externa e interna) e moleculares foram estudados em cultivares do morangueiro, para verificar se os dados morfológicos e agronômicos apresentam correlação com os moleculares. Dados experimentais foram obtidos em campo em Atibaia (SP) e Piracicaba (SP), em 1996, no delineamento em blocos ao acaso, com quatro repetições e dezesseis plantas por parcela das cultivares... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragaria x ananassa Duch.; RAPD; Similaridade genética; Caracteres morfo-agronômicos. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362002000300004 |
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| Registros recuperados: 233 | |
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