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| Registros recuperados: 67 | |
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| Lee,Youngsub; Park,Sairom; Kim,Hun; Lee,Seung Kyu; Kim,Jin Woo; Lee,Hak Kyo; Jeong,Dong Kee; Lee,Sung Jin. |
| Background: The melanocortin-4 receptor gene (MC4R) plays an important role in regulating food intake and body weight in mammals. In the present study, we identified the MC4R gene in native Korean brown, brindle, and black cattle by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP), and investigated its association with economic traits. A total of 413 cattle from the three breeds were tested for backfat thickness, carcass weight, longissimus muscle area, and marbling score, and statistical data were analyzed using the SAS program. Results: The C allele had the highest frequency in brown and brindle cattle, and the G allele frequency was highest in black cattle. The C1069G SNP was significantly (p < 0.05) associated with only... |
| Tipo: Journal article |
Palavras-chave: Economic trait; Marbling scores; MC4R gene; PCR-RFLP; SNP. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582013000500014 |
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| Blecha,Isabella Maiumi Zaidan; Sousa,Isadora Inácio; Ferreira,Anna Beatriz Robottom; Feijó,Gelson Luis Dias; Torres Júnior,Roberto Augusto de Almeida; Siqueira,Fabiane. |
| ABSTRACT The objectives of this study were to genotype single nucleotide polymorphisms (SNP) AF159246:g.2959A>G (CAST/DdeI) and AF248054.2:g.6545C>T (CAPN4751) in beef cattle by PCR-RFLP (Polymerase Chain Reaction - Restriction Fragment Length Polymorphism), using the restriction enzyme DdeI for both SNP, and describe the use of these genotyping methodologies for the first time. For the SNP located in the CAST gene, new primers were designed, and for the SNP of the CAPN1 gene, the same primers previously described in the literature were used. Bonsmara, Caracu, Senepol, Nelore, and Angus bulls were chosen from among the most used bulls in breeding programs according to their genealogy and the lowest possible degree of parentage between them to ensure... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal breeding; Marker-assisted selection; PCR-RFLP; SNP; Tenderness. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100311 |
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| Machado,M.A.; Nascimento,C.S.; Martinez,M.L.; Silva,M.V.G.B.; Campos,A.L.; Teodoro,R.L.; Verneque,R.S.; Guimarães,S.E.F.. |
| A associação entre os alelos do loco BoLA-DRB3.2, identificados pela técnica de PCR-RFLP, e a produção de leite na raça Gir foi estudada por meio da análise de dados moleculares e fenotípicos de 424 vacas Gir, utilizando um modelo misto, sob modelo animal. Os dados moleculares consistiam dos genótipos dos animais para os alelos do loco BoLA-DRB3.2 e os dados fenotípicos eram referentes à produção de leite em até 305 dias de lactação. O loco é altamente polimórfico nesta raça, sendo identificados sete alelos (BoLA-DRB3.2*4, *8, *11, *19, *28, *41 e *48) que não haviam sido encontrados em animais zebuínos. Dois alelos (*16 e *29) estavam significativamente associados com maiores produções de leite, sugerindo que o próprio loco BoLA-DRB3.2 ou um QTL a ele... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: BoLA-DRB3; PCR-RFLP; Gene candidato; Bovinos; Gir. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000300017 |
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| Yu,Lixia; Zhang,Xiaoai; Zhai,Yun; Zhang,Hongxing; Yue,Wei; Zhang,Xiumei; Wang,Zhifu; Zhou,Hong; Zhou,Gangqiao; Gong,Feng. |
| Abstract Heparanase activity is involved in cancer growth and development in humans and single nucleotide polymorphisms (SNPs) in the heparanase gene (HPSE) have been shown to be associated with tumors. In this study, we investigated whether SNPs in HPSE were a risk factor for hepatocellular carcinoma (HCC) by undertaking a comprehensive haplotype-tagging, case-control study. For this, six haplotype-tagging SNPs (htSNPs) in HPSE were genotyped in 400 HCC patients and 480 controls by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. A log-additive model revealed significant correlations between the HPSE polymorphisms rs12331678 and rs12503843 and the risk of HCC in the overall samples (p = 0.0046 and p = 0.0055). When... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic association; Heparanase; Hepatocellular carcinoma; HPSE gene; PCR-RFLP. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000500743 |
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| Nascimento,Carlos Souza do; Machado,Marco Antonio; Martinez,Mario Luiz; Silva,Marcos Vinícius G. Barbosa da; Guimarães,Marta Fonseca Martins; Campos,Ana Lúcia; Azevedo,Ana Luisa Sousa; Teodoro,Roberto Luiz; Verneque,Rui da Silva; Guimarães,Simone Eliza Facioni; Oliveira,Denise Aparecida Andrade. |
| The effect of the bovine major histocompatibility complex (BoLA) locus on animal health may be due to a direct action of its alleles on immune functions, whereas its indirect effect on production traits might be explained by the better general health conditions of more productive animals. In the present study, the BoLA-DRB3 gene was investigated in 1058 cows belonging to seven Brazilian Gyr Dairy herds (Bos indicus, Zebu cattle). A total of 37 alleles were identified, 15 of them described for the first time in a Zebu breed. A highly significant association (p < 0.02) was observed between allele *54 and a decrease (-26.1 kg) in milk protein yield and there was a significant association (p < 0.05) between this allele and lower (-26.07 kg) milk fat... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cattle; Marker-assisted selection; Molecular markers; PCR-RFLP. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000400011 |
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| Besbes, Nadia; Jerome, Marc; Berge, Jean-pascal; Sadok, Saloua. |
| This study describes a polymerase chain reaction using restriction fragment length polymorphism (PCR-RFLP) assay based on the 16S rRNA mitochondrial gene to identify commercial food products of wide range of Penaeidae and Pandalidae shrimp species commercialised in the Tunisian market. Phylogenetic analyses on 16S rRNA mitochondrial gene were used to study the relationships among the considered species. Penaeidae shrimp species was easily differentiated and confirmed by direct sequencing, showing a genetic distance of 0.34 with respect to Pandalidae species. A rapid and reliable PCR method using restriction fragment length polymorphism (RFLP) with three restriction enzymes (HpyCH4III/ MboI / AluI) was optimized for unambiguous differentiation of shrimp... |
| Tipo: Text |
Palavras-chave: Shrimps; Species identification; 16S rRNA mtDNA; PCR-RFLP. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00303/41445/40637.pdf |
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| Rachagani,Satyanarayana; Gupta,Ishwar Dayal. |
| Point mutations in exon IV of the bovine κ-casein (CSN3) gene determine two allelic variants, A and B. These variants were distinguished by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) analysis in the indigenous Sahiwal and Tharparkar cattle breeds. DNA samples (252 Sahiwal and 56 Tharparkar) were analyzed for allelic variants of the CSN3 gene. Polymorphism was detected by digestion of PCR-amplified products with HindIII, HhaI and HaeIII restriction enzymes, followed by separation on 3% agarose gels, and resolved by ethidium bromide staining. Allele A of the κ-casein gene occurred at a higher frequency than allele B, in both Sahiwal and Tharparkar breeds. The genotypic frequencies of AA, AB, and BB in the Sahiwal and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Indian cattle; Κ-casein; Genetic polymorphism; PCR-RFLP. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000500015 |
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| Melo, Patrícia Rodrigues de; Carvalho, Cleber Eduardo Galvão; Andrade, Gisele Braziliano de; Soares, Cleber Oliveira; Rosinha, Grácia Maria Soares. |
| Foi efetuada a caracterização bioquímica, genotípica e a análise de virulência e patogenicidade de amostras isoladas de C. pseudotuberculosis. Foram utilizadas cinco amostras: CBO (Corynebacterium Ovino) 2512, CBO 28033, CBC (Corynebacterium Caprinos) 70D, CBC 118, CBC NPC e as amostras controle 1002 (Linfovac) e 00512 (Fiocruz). Para a identificação bioquímica, foi utilizado o kit APIcoryne (Bio Merieux-França). A caracterização genotípica foi realizada com o teste de PCR-RFLP para o gene rpoB, tratado com as enzimas MseI e StuI. As amostras foram avaliadas quanto à virulência e patogenicidade, em camundongos BALB/c inoculados com 1x103, 1x104, 1x105 e 1x106 Unidades Formadoras de Colônias por mL (UFC/mL). A caracterização bioquímica confirmou que as... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Linfadenite caseosa; Virulência; Patogenicidade; PCR-RFLP; Corynebacterium pseudotuberculosis. |
| Ano: 2014 |
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/23741 |
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| Silveira,Zama Messala Luna da; Barbosa,Maria das Vitórias; Fernandes,Thales Allyrio Araújo de Medeiros; Kimura,Elza Miyuki; Costa,Fernando Ferreira; Sonati,Maria de Fátima; Rebecchi,Ivanise Marina Moretti; Medeiros,Tereza Maria Dantas de. |
| 35 unrelated individuals were studied for characterization as either heterozygous or homozygous for beta-thalassemia. Molecular analysis was done by PCR/RFLP to detect the mutations most commonly associated with beta-thalassemia (β0IVS-I-1, β+IVS-I-6, and β039). In the patients who showed none of these mutations, the beta-globin genes were sequenced. Of the 31 heterozygous patients, 13 (41.9%) had the β+IVS-I-6 mutation, 15 (48.4%) the β0IVS-I-1 mutation, 2 (6.5%) the β+IVS-I-110 mutation and 1 (3.2%) the β+IVS-I-5 mutation. IVS-I-6 was detected in the four homozygotes. The mutation in codon 39, often found in previous studies in Brazil, was not detected in the present case. This is the first study aiming at identifying mutations that determine... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hereditary hemoglobinopathies; Beta-thalassemia; Mutations; PCR-RFLP; Brazilian population. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000300010 |
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| Liang,Hongxia; Liu,Yao; Zhu,Jun; Guan,Peng; Li,Shuangcheng; Wang,Shiquan; Zheng,Aiping; Liu,Huainian; Li,Ping. |
| Sichuan basin, situated in the west of China, is the fourth biggest basin in China. In order to describe a systematic study of the cry2-type genes resources from Bacillus thuringiensis strains of Sichuan basin, a total of 791 Bacillus thuringiensis strains have been screened from 2650 soil samples in different ecological regions. The method of PCR-restriction fragment length polymorphism (PCR-RFLP) was used to identify the type of cry2 genes. The results showed that 322 Bacillus thuringiensis strains harbored cry2-type genes and four different RFLP patterns were found. The combination of cry2Aa/cry2Ab genes was the most frequent (90.4%), followed by cry2Aa (6.8%) and cry2Ab alone (2.5%), and only one novel type of cry2 gene was cloned from one isolate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus thuringiensis; PCR-RFLP; SDS-PAGE; Novel cry2-type gene. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100018 |
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| Santos,MMAB; Peiró,JR; Meireles,MV. |
| Avian cryptosporidiosis has been reported in more than 30 species of birds. To date, the species infecting birds are C. baileyi, C. galli and C. meleagridis. In this study, the morphological, clinical and molecular characteristics of a Brazilian ostrich isolate of Cryptosporidium are described. The oocysts of this Brazilian isolate are larger and more elongated than those of Cryptosporidium previously reported in ostriches, which were morphologically similar to C. meleagridis. Morphological, biological and molecular analyses demonstrated similarity of this ostrich isolate with C. baileyi, suggesting that there are at least two Cryptosporidium species infecting ostriches; one with molecular, biological and morphological characteristics related to C.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Clinical signs; Cryptosporidium; Morphology; Ostriches; PCR-RFLP. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000200008 |
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| Destéfano,Ricardo Henri Rodrigues; Destéfano,Suzete A. Lanza; Messias,Claudio Luiz. |
| In order to construct specific primers for the detection and identification of the entomopathogenic fungus Metarhizium within infected sugarcane borer (Diatraea saccharalis) larvae we analyzed the ITS1 -5.8S- ITS2 rDNA regions of strains and varieties of M. anisopliae, M. album and M. flavoviride. The PCR amplification of these regions yielded a unique fragment of approximately 540 bp for M. anisopliae variety anisopliae strains E9, B/Vi and C (isolated in Brazil), 600 pb for M. a. anisopliae strain 14 (isolated in Australia), 650 bp for the M. album and 600 bp for M. flavoviride strains. The PCR products were digested with different restriction endonucleases (Afa I, Alu I, Dde I, Hae III, Hpa II and Sau 3A) and the PCR-RFLP profiles showed clear... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Metarhizium anisopliae; Entomopathogenic fungi; PCR-RFLP; ITS region. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000200020 |
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| Morillo,Milangela; Acosta,Atzel; Uffo,Odalys. |
| La caracterización genética del ganado autóctono supone conocer la situación de las poblaciones para su conservación. Aunque en Venezuela se han realizado estudios de caracterización de ganado Carora y Criollo Limonero, estos han sido aislados y no se han efectuado con la intención de esclarecer si la estructura genética para los genes de las tres principales proteínas lácteas, en dichas razas bovinas venezolanas, Criollo Limonero y Carora, refleja su variabilidad genética. Por dicha razón se determinaron los genotipos para las tres principales proteínas lácteas: k-caseina, a-lactoalbúmina y b-lactoglobulina en rebaños controlados. Para la caracterización de dichas razas se calcularon las frecuencias alélicas, las heterocigosidades por locus para cada... |
| Tipo: Journal article |
Palavras-chave: Bovino; Carora; Criollo Limonero; Proteínas lácteas; PCR-RFLP. |
| Ano: 2014 |
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2014000300007 |
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| Registros recuperados: 67 | |
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