Consulta: creatorFacets:"Curi,Rogério A."
Registros recuperados: 6
Data/hora: 04/06/2024 09:38:26

Growth and carcass traits associated with GH1/Alu I and POU1F1/Hinf I gene polymorphisms in Zebu and crossbred beef cattle
Provedor de dados: 74
Autores: Curi,Rogério A.; Palmieri,Darío A.; Suguisawa,Liliane; Oliveira,Henrique N. de; Silveira,Antonio C.; Lopes,Catalina R.
The objectives of the present study were to estimate the allele and genotype frequencies of the GH1/Alu I and POU1F1/Hinf I polymorphisms in beef cattle belonging to different genetic groups and to determine the effects of these polymorphisms on growth and carcass traits in cattle submitted to feedlot management, an intensive production model. Genotyping was performed on 384 animals, including 79 Nellore, 30 Canchim (5/8 Charolais + 3/8 Zebu), 30 Simmental x Nellore crossbred and 245 Angus x Nellore crossbred cattle. Body weight, weight gain, dressing percentage, Longissimus dorsi area and backfat thickness were fitted using the General Linear Model (GLM) procedure of the SAS program and the least square means of the genotypes were compared using the F...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beef cattle; Polymorphisms; Candidate gene; Growth; Carcass.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000100012

Genetic diversity analysis in the section Caulorrhizae (genus Arachis) using microsatellite markers
Provedor de dados: 74
Autores: Palmieri,Darío A.; Bechara,Marcelo D.; Curi,Rogério A.; Monteiro,Jomar P.; Valente,Sérgio E.S.; Gimenes,Marcos A.; Lopes,Catalina R.
Diversity in 26 microsatellite loci from section Caulorrhizae germplasm was evaluated by using 33 accessions of A. pintoi Krapov. &amp;amp; W.C. Gregory and ten accessions of Arachis repens Handro. Twenty loci proved to be polymorphic and a total of 196 alleles were detected with an average of 9.8 alleles per locus. The variability found in those loci was greater than the variability found using morphological characters, seed storage proteins and RAPD markers previously used in this germplasm. The high potential of these markers to detect species-specific alleles and discriminate among accessions was demonstrated. The set of microsatellite primer pairs developed by our group for A. pintoi are useful molecular tools for evaluating Section Caulorrhizae...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arachis; Genetic diversity; Germplasm; Microsatellites; Molecular markers.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100019

Sequence characterization of coding regions of the myostatin gene (GDF8) from Brazilian Murrah buffaloes (Bubalus bubalis) and comparison with the Bos taurus sequence
Provedor de dados: 74
Autores: Mota,Lígia S.L.S.; Curi,Rogério A.; Palmieri,Darío A.; Borges,Alexandre S.; Lopes,Catalina R.; Barbosa,José D.; Gimenes,Marcos A.
Within about 30 years the Brazilian buffalo (Bubalus bubalis) herd will reach approximately 50 million head as a result of the great adaptive capacity of these animals to tropical climates, together with the good productive and reproductive potential which make these animals an important animal protein source for poor and developing countries. The myostatin gene (GDF8) is important in the physiology of stock animals because its product produces a direct effect on muscle development and consequently also on meat production. The myostatin sequence is known in several mammalian species and shows a high degree of amino acid sequence conservation, although the presence of non-silent and silent changes in the coding sequences and several alterations in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Buffalo; GDF8; Myostatin.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000100016

Effects of CSN3 and LGB gene polymorphisms on production traits in beef cattle
Provedor de dados: 74
Autores: Curi,Rogério A.; Oliveira,Henrique N. de; Gimenes,Marcos A.; Silveira,Antonio C.; Lopes,Catalina R.
The objective of the present study was to estimate the allele and genotype frequencies of the CSN3/HinfI and LGB/HaeIII gene polymorphisms in beef cattle belonging to different genetic groups, and to determine the effects of these polymorphisms on growth and carcass traits in these animals, which are submitted to an intensive production model. Genotyping was performed on 79 Nelore, 30 Canchim (5/8 Charolais + 3/8 Zebu) and 275 crossbred cattle originating from the crosses of Simmental (n = 30) and Angus (n = 245) sires with Nelore females. Body weight, weight gain, dressing percentage, longissimus dorsi area and backfat thickness were fitted using the GLM procedure, and least square means of the genotypes were compared by the F test. The results showed...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Beef cattle; Polymorphisms; Candidate gene; Growth; Carcass.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000200015

Growth hormone 1 gene (GH1) polymorphisms as possible markers of the production potential of beef cattle using the Brazilian Canchim breed as a model
Provedor de dados: 74
Autores: Silveira,Luiz Guilherme G.; Furlan,Luiz R.; Curi,Rogério A.; Ferraz,André Luiz J.; Alencar,Maurício M. de; Regitano,Luciana C.A.; Martins,Cyntia L.; Arrigoni,Mário de Beni; Suguisawa,Liliane; Silveira,Antônio C.; Oliveira,Henrique N. de.
The growth hormone 1 gene (GH1) is a candidate gene for body weight and weight gain in cattle since it plays a fundamental role in growth regulation. We investigated the GH1 gene AluI and DdeI restriction enzyme polymorphisms, located 149 bp apart in the cattle genome, as possible markers of the production potential of Canchim crossbreed cattle, a 5/8 Charolais (Bos taurus) and 3/8 Nelore (Bos indicus) breed developed in Brazil, by evaluating the birth weight, weaning weight, yearling weight and plasma insulin-like growth factor-1 (IGF-1) concentration of 7 month to 10 months old Canchim calves (n = 204) of known genealogy and which had been genotyped for the AluI and DdeI markers. Our results showed significant effect (p &lt; 0.05) between the homozygous...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Beef cattle; Polymorphism; Growth hormone; Candidate gene.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000500012

Bovine gene polymorphisms related to fat deposition and meat tenderness
Provedor de dados: 74
Autores: Fortes,Marina R.S.; Curi,Rogério A.; Chardulo,Luis Artur L.; Silveira,Antonio C.; Assumpção,Mayra E.O.D.; Visintin,José Antonio; Oliveira,Henrique N. de.
Leptin, thyroglobulin and diacylglycerol O-acyltransferase play important roles in fat metabolism. Fat deposition has an influence on meat quality and consumers' choice. The aim of this study was to determine allele and genotype frequencies of polymorphisms of the bovine genes, which encode leptin (LEP), thyroglobulin (TG) and diacylglycerol O-acyltransferase (DGAT1). A further objective was to establish the effects of these polymorphisms on meat characteristics. We genotyped 147 animals belonging to the Nelore (Bos indicus), Canchim (5/8 Bos taurus + 3/8 Bos indicus), Rubia Gallega X Nelore (1/2 Bos taurus + 1/2 Bos indicus), Brangus Three-way cross (9/16 Bos taurus + 7/16 Bos indicus) and Braunvieh Three-way cross (3/4 Bos taurus + 1/4 Bos indicus)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine gene polymorphisms; Candidate gene; Fat deposition; Beef cattle.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100011