Consulta: creatorFacets:"Regitano,Luciana C.A."
Registros recuperados: 3
Data/hora: 01/06/2024 02:55:11

QTL affecting body weight in a candidate region of cattle chromosome 5
Provedor de dados: 74
Autores: Machado,Mariana B.B.; Alencar,Maurício M.; Pereira,Andréa P.; Oliveira,Henrique N.; Casas,Eduardo; Coutinho,Luis L.; Regitano,Luciana C.A.
The objective of this work was to identify QTLs for liveweight in a candidate region of bovine chromosome 5. Half-sib families from two lines, one traditional and the other new, of Canchim beef cattle (5/8 Charolais + 3/8 Zebu) were genotyped for four microsatellite markers, including the microsatellite in the IGF-1 (insulin-like growth factor-1) promoter region. Significant differences in allele distribution between the two lines were found for three markers. Interval mapping analyses in this region indicated the presence of a QTL controlling birth weight (p &lt; 0.05) and of a QTL influencing breeding value for yearling weight (p &lt; 0.01) in the newer line of the breed. The previously identified interaction between the IGF-1 genotype and genetic group...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: QTL; Growth traits; Microsatellite; Bovine.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300008

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

Parentage test in broad-snouted caimans (Caiman latirostris, Crocodylidae) using microsatellite DNA
Provedor de dados: 74
Autores: Zucoloto,Rodrigo B.; Verdade,Luciano M.; Villela,Priscilla M.S.; Regitano,Luciana C.A.; Coutinho,Luiz L.
In this study, microsatellite markers, developed for Alligator mississipiensis and Caiman latirostris, were used to assess parentage among individuals from the captive colony of Caiman latirostris at the University of São Paulo, in Piracicaba, São Paulo, Brazil. Many of the females in the colony were full siblings, which made maternal identification difficult due to genotypic similarity. Even so, the most likely mother could be identified unambiguously among offspring in most of the clutches studied. Two non-parental females displayed maternal behavior which would have misled managers in assigning maternity based on behavior alone. This set of variable loci demonstrates the utility of parentage testing in captive propagation programs.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crocodilians; Caiman; Parentage; Microsatellite DNA.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000400033