Consulta: creatorFacets:"Mota,Lígia Souza Lima Silveira da"
Registros recuperados: 4
Data/hora: 09/06/2024 14:51:04

Centric fusion in goats (Capra hircus): Identification of a 6/15 translocation by high resolution chromosome banding
Provedor de dados: Genetics and Molecular Biology
Autores: Mota,Lígia Souza Lima Silveira da; Silva,Rosana Ap. Bicudo da.
Nine phenotypically normal Saanen goats (6 males and 3 females) belonging to the goat house of the Instituto de Biociências, UNESP, Botucatu Campus, were analyzed cytogenetically. The objective of the present study was to determine whether or not chromosomes 5 and 15 are involved in a Robertsonian translocation previously observed in a sample of a Brazilian herd using the chromosome pattern described by the ISCNDA (1989). The results suggest the involvement of chromosomes 6 and 15 in the fusion demonstrated by G-banding in prometaphase cells. The Brazilian sample of animals carrying structural rearrangements did not present any reduction in fertility, suggesting the existence of prezygotic selection against unbalanced gametes. Further investigations on the...
Tipo: Info:eu-repo/semantics/article
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000100012

Mitochondrial DNA of Nellore and European x Nellore crossing cattle of high performance
Provedor de dados: Pesquisa Agropecuária Brasileira
Autores: Curi,Rogério Abdallah; Mota,Lígia Souza Lima Silveira da; Silveira,Antônio Carlos.
The objective of this work was to evaluate, through a polymorphism in the ND5 gene of the bovine mitochondrial DNA, the frequency of Bos taurus indicus mtDNA individuals in a sample of Nellore purebred origin animals (n = 69) and crossbred animals originated from crosses of European sires and Nellore purebred origin females (n = 275). Only 2.26% (8/354) of the animals presented Bos taurus indicus mtDNA. The high frequency of Bos taurus taurus mtDNA in these animals can be a consequence of selection, once the animals studied are originated from selected lineages of high performance for meat production.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bos taurus indicus; Bos taurus taurus; Beef cattle; DNA polymorphism.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000800019

Análise cromossômica e molecular do javali europeu Sus scrofa scrofa e do suíno doméstico Sus scrofa domesticus
Provedor de dados: Brazilian Jounarl of Veterinary
Autores: Gimenez,Danilo Lucano; Mota,Lígia Souza Lima Silveira da; Curi,Rogério Abdallah; Rosa,Guilherme Jordão de Magalhães; Gimenes,Marcos Aparecido; Lopes,Catalina Romero; Lucca,Edmundo José de.
A presente investigação teve como objetivos: analisar animais presentes em diferentes criações de javalis no estado de São Paulo, com o intuito de auxiliar a identificação de javalis "puros" assim como javalis híbridos provenientes do cruzamento com o suíno doméstico, para tanto foram utilizadas avaliação do fenótipo dos animais, análises citogenéticas e da técnica molecular de RAPD (Random Amplified Polymorphic DNA).O estudo do número de cromossomos nas células diplóides em 104 animais destinados a análise citogenética e fenotípica, revelou polimorfismo de 2n=36, 37 e 38 cromossomos. Por meio da técnica de bandamento GTG foi possível identificação da translocação Robertsoniana entre os cromossomos 15 e 17 como responsável por esse polimorfismo. Todavia,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Javali; Híbrido; Citogenética; RAPD; Fenótipos.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962003000200009

Bovine carcass sexing by PCR method
Provedor de dados: Brazilian Jounarl of Veterinary
Autores: Curi,Rogério Abdallah; Mota,Lígia Souza Lima Silveira da; Amarante,Mônica Regina Vendrame; Lopes,Catalina Romeiro.
The objective of the present study was to develop a methodology that would permit sexing bovine meat ready for commercialization. A male-specific primer sequence was used, followed by analysis of the amplified product. The method proved to be efficient for sex verification and is of practical utility in the prevention of fraud in beef sale.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bovine; Carcass; Sexing; PCR.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000300007