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| Registros recuperados: 179 | |
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| Álvarez,Gloria Edith Guerrero; Gutiérrez,Ana María López; Valencia,Katalina Ángel; Mossos,Paula Sandoval; Rozo,Diana Lucía Suárez; Hurtado,Nathalia Cardona. |
| Abstract This research aimed at performing the molecular characterization of commercial Papelillo avocado (Persea americana cv Lorena) cultivars from the municipality of Marsella (Risaralda, Colombia), as well as the physicochemical analysis and antioxidant activity assessment of the pulp and seed. An evaluation of 50 individuals among commercial varieties and possible patterns was performed using 17 microsatellite markers. Proximate analysis of the pulp was performed, and the fatty acid profile of oils, the antioxidant activity by the DPPH and FRAP methods, and the total phenolic content were evaluated. From the cluster analysis, Dice index, and Principal Coordinates Analysis, it became evident that all the individuals showed a tendency to group by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidants; DNA; Fatty acids; Microsatellites; Persea americana Mill.; Total phenols. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452020000500902 |
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| Vasconcellos,Luciana Pimentel de Mello Klocker; Tambasco-Talhari,Daniella; Pereira,Andréa Pozzi; Coutinho,Luiz Lehmann; Regitano,Luciana Correia de Almeida. |
| Aberdeen Angus beef cattle from the Brazilian herd were studied genetically using restriction fragment length polymorphism (RFLP) of the kappa-casein - HinfI (CSN3 - HinfI), beta-lactoglobulin - HaeIII (LGB - HaeIII) and growth hormone AluI (GH- AluI) genes, as well as four microsatellites (TEXAN15, CSFM50, BM1224 and BM7160). The RFLP genotypes were determined using the polymerase chain reaction (PCR) followed by digestion with restriction endonucleases and electrophoresis in agarose gels. With the exception of the microsatellite BM7160, which was analyzed in an automatic sequencer, the PCR products were genotyped by silver staining. The allele and genotype frequencies, heterozygosities and gene diversity were estimated. The values for these parameters of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aberdeen Angus; Bovine; DNA; Characterization; RFLP; Microsatellite. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000200005 |
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| Ferreira,Francileide Lisboa; Leal-Mesquita,Emygdia Rosa; Santos,Sidney Emanuel Batista dos; Ribeiro-dos-Santos,Ândrea Kely Campos. |
| Five loci (vWA1, F13A1, D12S67, Apo-B and D1S80) were investigated by polyacrylamide gel electrophoresis followed by silver staining in a sample of 177 individuals from the population of São Luís, State of Maranhão, Brazil. A total of 70 different alleles were identified. A statistically significant deviation from the Hardy-Weinberg equilibrium was observed in a single locus (F13A1, p = 0.0075). The average heterozygosity (H) was estimated at 77.7%, the mean number of alleles per locus as 14. The PD (capacity of genotype differentiation at each locus) ranged from 88.9% (vWA1) to 96.7% (F13A1). The combined PE (power of exclusion) of these five loci was 99.8%. In terms of racial admixture (42% European, 39% Indian, and 19% African Black ancestry), São Luís... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon region; DNA; Polymorphisms; VNTRs; STRs; Interethnic admixture. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100004 |
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| Aukar,Ana Paula de Andrade; Lemos,Eliana Gertrudes de Macedo; Oliveira,João Carlos. |
| It has been evaluated the genetic variability through the use of RAPD molecular markers on the following passionflower species: Passiflora amethystina, P. caerulea, P. cincinnata, P. coccinea, P. serrato digitata, P. foetida, P. maliformis, P. alata, P. giberti, P. laurifolia, P. macrocarpa, P. nitida, P. setacea, P. suberosa, P. ligularis, P. capsularis, P. edulis Sims and its botanical variety P. edulis Sims f. flavicarpa Deg. In this research work, the analyses of the random amplified polymorphic DNA products (RAPD) were employed to estimate the genetic diversity and the taxonomic linkage within the species above. The total of 21 primers were used in this study which generated 270 different polymorphic products. It was possible to detect that the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: DNA; Genetic diversity; Passion fruit; Random Amplified Polymorphic DNA. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452002000300044 |
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| Bittencourt, Rodrigo Freitas; Chalhoub, Marcus; Loiola, Marcus Vinícius Galvão; Rodrigues, Alexandra Soares; Ferraz, Priscila Assis; Ribeiro Filho, Antônio de Lisboa. |
| Uma das grandes dificuldades na andrologia e identificar testes que possibilitem estimar a fertilidade do reprodutor ou de determinada amostra de sêmen congelada, devido a baixa ou ausência de correlação entre as avaliações in vitro e a fertilidade in vivo. Assim, o objetivo deste trabalho foi avaliar a ocorrência de correlações positivas entre os diferentes testes de avaliação espermática realizados in vitro e a sua fertilidade in vivo. Para tanto, 44 amostras de sêmen foram descongeladas e submetidas as avaliações espermáticas in vitro. As características de cinética espermática avaliadas (IVOS 12, Hamiton Thorn Biosciences, Beverly, MA, EUA) foram: motilidade total (MT, %), motilidade progressiva (MP, %), espermatozoides rápidos (RAP, %), velocidade... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ovinos; Sêmen; Criopreservação; DNA; Teste do cometa. |
| Ano: 2015 |
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/24974 |
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| ROSINHA, G. M. S.; SANTOS, L. R. dos; ELISEI, I.; SANCHES, C. C.; BERTOLACCI, M. A. B. C.; MANTOVANI, C.; ELISEI, C.; SOARES, C. O.. |
| A prevalência de focos da brucelose bovina em propriedades pecuárias no Brasil varia de 0,32% a 41,5%. O Estado de Mato Grosso do Sul tem 41,5% de suas fazendas com pelo menos um animal reagente à prova sorológica. Estes índices por si só são muito expressivos e impactam nos diferentes segmentos das cadeias produtivas da pecuária de corte e de leite, além de implicar em barreira comercial à exportação da carne bovina. Assim, há necessidade de um teste rápido post-mortem, de altas sensibilidade e especificidade que possa ser usado como ferramenta de diagnóstico em sistemas de vigilância sanitária, frente à brucelose bovina. Diante disto, 20 bovinos de diferentes frigoríficos do Estado de Mato Grosso do Sul, que apresentavam lesões sugestivas para brucelose... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Brucelose; Brucella Abortus; Diagnostico; DNA; Pecuária. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118276 |
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| Emara,Hassan Mahmoud; Omar,Ayman Feisal; El-Shamy,Moustafa Mahmoud; Mohamed,Mona Elsaid. |
| ABSTRACT Powdery mildew of wheat (Triticum spp.) caused by Blumeria graminis f.sp. tritici (DC) E.O. Speer Em. Marchal is one of the most important bread wheat diseases in Egypt. All the Egyptian common bread wheat cultivars are susceptible to that disease at seedling and adult stages. Breeding of resistant cultivars is the most economical and environmentally safe method to eliminate the disease and reduce crop losses. Combinations of two or more effective resistance genes may lead to better, more durable resistance to that disease. Eight Pm genes i.e. Pm2, Pm6, Pm12, Pm16, Pm24, Pm35, Pm36 and Pm37 out of 21 powdery mildew monogenic wheat lines (Pm) were resistant to 42 individual isolates of powdery mildew collected from different governorates in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Powdery mildew; Genetic control; DNA; Molecular markers. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000300279 |
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| Lazerges M, M; Perrot, H; Zeghib N, N; Antoine, Elisabeth; Compere, Chantal. |
| We report on a probe modification of a quartz crystal microbalance (QCM) DNA-biosensor that permits to reversibly change the DNA sequence detected. A QCM DNA-biosensor was designed by immobilization of a 20-base DNA-disulfide probe on the gold-covered quartz surface of a 27 MHz microbalance (9 MHz, third overtone). After immobilization on the gold covered quartz surface, this probe was modified by hybridization with a 45-base DNA that includes the complementary 20-base sequence, a 5-base spacer and a non-complementary 20-base sequence. The non-complementary sequence constitutes a new probe, different from the DNA-disulfide probe, that permits the detection of a new DNA target. As this 45 bases DNA is changeable by dehybridization, successive different DNA... |
| Tipo: Text |
Palavras-chave: QCM; DNA; Biosensor. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1985.pdf |
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| Santos-Filho,Sebastião David; Diniz,Claudia Leite; Carmo,Fernanda Santos do; Fonseca,Adenilson de Souza da; Bernardo-Filho,Mario. |
| The aim of this work was to study the influence of a walnut (Juglans regia) extract on the growth of Escherichia coli (E. coli) AB1157, on the plasmid DNA topology and on the labeling of blood constituents with technetium-99m (99mTc). An E. coli AB1157 culture, in stationary phase, was incubated with walnut and the growth of the culture was evaluated by optical density at 600 nm for 7 hours. Plasmid DNA samples were incubated with SnCl2 in presence or absence of walnut for 40 minutes, 0.8% agarose gel electrophoresis was performed, the gel was stained and the plasmid topological forms were visualized. Blood samples from Wistar rats were incubated with walnut extract and an assay of labeling of blood constituents with technetium-99m (99mTc) was performed.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Escherichia coli; DNA; Electrophoresis; Stannous chloride; Technetium-99m; Juglans regia. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000700026 |
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| Registros recuperados: 179 | |
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