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| Registros recuperados: 74 | |
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| Carolino,Inês; Sousa,Conceição O.; Ferreira,Sónia; Carolino,Nuno; Silva,Fátima S.; Gama,Luís T.. |
| A study was conducted to assess the feasibility of applying a panel of 10 microsatellite markers in parentage control of beef cattle in Portugal. In the first stage, DNA samples were collected from 475 randomly selected animals of the Charolais, Limousin and Preta breeds. Across breeds and genetic markers, means for average number of alleles, effective number of alleles, expected heterozygosity and polymorphic information content, were 8.20, 4.43, 0.733 and 0.70, respectively. Enlightenment from the various markers differed among breeds, but the set of 10 markers resulted in a combined probability above 0.9995 in the ability to exclude a random putative parent. The marker-set thus developed was later used for parentage control in a group of 140 calves from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle; Genetic markers; Microsatellites; Parentage control. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000200017 |
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| Ceresini,Paulo Cezar; Silva,Cristina Lacerda Soares Petrarolha; Missio,Robson Fernando; Souza,Elaine Costa; Fischer,Carlos Norberto; Guillherme,Ivan Rizzo; Gregorio,Ivo; Silva,Eloiza Helena Tajara da; Cicarelli,Regina Maria Barreto; Silva,Marco Túlio Alves da; Garcia,José Fernando; Avelar,Gustavo Arbex; Porto Neto,Laercio Ribeiro; Marçon,André Ricardo; Bacci Junior,Maurício; Marini,Danyelle Cristine. |
| The main goal of our research was to search for SSRs in the Eucalyptus EST FORESTs database (using a software for mining SSR-motifs). With this objective, we created a database for cataloging Eucalyptus EST-derived SSRs, and developed a bioinformatics tool, named Satellyptus, for finding and analyzing microsatellites in the Eucalyptus EST database. The search for microsatellites in the FORESTs database containing 71,115 Eucalyptus EST sequences (52.09 Mb) revealed 20,530 SSRs in 15,621 ESTs. The SSR abundance detected on the Eucalyptus ESTs database (29% or one microsatellite every four sequences) is considered very high for plants. Amongst the categories of SSR motifs, the dimeric (37%) and trimeric ones (33%) predominated. The AG/CT motif was the most... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioinformatics tool; Genetic markers; Gene ontology; Small sequence repeats; SSR. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000400014 |
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| Falchi,Alessandra; Vacca,Lucia; Lopez Alomar,Antonio; Esteban,Esther; Memmi,Marc; Varesi,Laurent; Moral,Pedro; Vona,Giuseppe. |
| Three different population samples from Corsica (France), Sardinia and Sicily (Italy) were studied using nine genetic markers. For the first time, allele distributions of FGA TaqI, FGB Bcl I, FGB Hind III, PAI-1 Hind III, PLAT TPA-25, GPIIIa Taq I, GPIIb I/D 9bp, FVII HVR4 and FVII -323 10 bp markers, which are thought to be associated with cardiovascular disease risk, were studied in the general population of the three islands. The frequencies of the markers analysed in the present work show some peculiarities: the locus FVII HVR4 is characterized by the presence of a rare allele (H5), found in Corsicans and in Sardinians; the locus FBG BcII shows a low frequency of the B1 allele and the absence of the B1B1 genotype. The frequencies of some alleles have a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Haemostatic genes; Genetic markers; Mediterranean populations. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000200002 |
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| Brito,Cíntia; Vilaça,Sibelle Torres; Lacerda,Ana Luzia; Maggioni,Rodrigo; Marcovaldi,Maria Ângela; Vélez-Rubio,Gabriela; Proietti,Maíra Carneiro. |
| Abstract Marine turtle hybridization is usually sporadic and involves reports of only a few individuals; however, Brazilian populations have high hybridization rates. Here we investigated the presence of hybrids in morphologically identified immature hawksbills (Eretmochelys imbricata) along the South Western Atlantic (SWA). We sequenced one mitochondrial (D-Loop) and three nuclear DNA (RAG1, RAG2, and CMOS) markers to better understand the patterns and characteristics of hybrids. We identified 22 hybrids (n = 270), 11 of them at the extreme South of the SWA. Uruguay had the highest hybrid frequency in the SWA (~37.5%) followed by southern Brazil with 30%. These are common areas for loggerheads (Caretta caretta) but uncommon for hawksbills, and these... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hybridization; Cheloniidae; Genetic markers; Hybrid distribution; Conservation. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572020000400704 |
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| Bömcke,Elisabeth; Gengler,Nicolas; Cothran,E. Gus. |
| In Greece, seven native horse breeds have been identified so far. Among these, the Skyros pony is outstanding through having a distinct phenotype. In the present study, the aim was to assess genetic diversity in this breed, by using different types of genetic loci and available genealogical information. Its relationships with the other Greek, as well as foreign, domestic breeds were also investigated. Through microsatellite and pedigree analysis it appeared that the Skyros presented a similar level of genetic diversity to the other European breeds. Nevertheless, comparisons between DNA-based and pedigree-based results revealed that a loss of genetic diversity had probably already occurred before the beginning of breed registration. Tests indicated the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic variation; Genetic markers; Pedigree; Horse. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100013 |
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| Corva,Pablo; Soria,Liliana; Schor,Alejandro; Villarreal,Edgardo; Cenci,Macarena Pérez; Motter,Mariana; Mezzadra,Carlos; Melucci,Lilia; Miquel,Cristina; Paván,Enrique; Depetris,Gustavo; Santini,Francisco; Naón,Juan Grigera. |
| The activity of the calpains/calpastatin proteolytic system is closely related to the postmortem tenderization of meat. We investigated the association between beef tenderness and single nucleotide polymorphism (SNP) markers on the CAPN1 gene (SNP316, alleles C/G; SNP530 alleles A/G) and the CAST gene 3' untranslated region (SNP2870, alleles A/G). We sampled nine slaughter groups comprising 313 steers which had been reared in beef production systems in Argentina between 2002 and 2004 from crosses between Angus, Hereford and Limousin cattle. Minor allele frequencies for the markers were 0.27 to 0.46 (C), 0.02 to 0.18 (A), and 0.24 to 0.53 (A), respectively. The presence of CAPN1 markers had significant effects on meat shear force but no detectable effects... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef cattle; CAPN1; CAST; Genetic markers; Meat quality. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000600006 |
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| Weber,Laura I.; Hildebrand,Cintia G.; Ferreira,Anderson; Pedarassi,Gustavo; Levy,José A.; Colares,Elton P.. |
| A genetic study of the neotropical river otter Lontra longicaudis (Olfers, 1818), which has an unknown conservation status, was carried out at the Taim Ecological Station and the margins of the Vargas stream, Rio Grande do Sul, southern Brazil. Faecal samples were collected, and DNA was extracted using a silica-guanidine method. Five microsatellite loci were amplified using PCR with heterologous primers previously described for Lutra lutra (Linnaeus, 1758). Sixteen faecal samples out of 29 from Taim and 11 out of 14 from Vargas stream margins contained enough DNA for genetic analysis. A total of 49 different alleles were found at both localities, from which 18 were exclusively found in individuals from Taim and 17 were exclusives from Vargas individuals.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Neotropical river otter; Genetic markers; Taim; Non-invasive sampling; Genetic diversity. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000100001 |
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| RESENDE, R. M. S.; MARTINS, F. B.; VILELA, M. de M.; MORAES, A. C. L.; FERREIRA, R. C. U.; DÉO, T. G.; MOREIRA, F. A.; PASTINA, M. M.; NODA, R. W.; SOUZA, A. P.. |
| Although Brazil is the major producer and exporter of beef in the world, the rangelands are cultivated with varieties obtained by selection on germplasm and conventional breeding. Only lately genomic information started to be used in the tropical forage breeding programs mostly because of the genome complexity and costs. Urochloa ruziziensis is a sexual autotetraploid forage that has a significant role in integrated systems that are currently important in the agribusiness in certain regions of Brazil and is essential as female parent in other Urochloa spp. breeding programs. Thus, this work intends to use the Genotyping by Sequencing (GBS) approach to identify SNP markers to construct the first map of the species and estimate breeding values for Genomic... |
| Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) |
Palavras-chave: Genomics; Genetic markers; Pipelines; Breeding. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1120361 |
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| Registros recuperados: 74 | |
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