Data/hora: 02/06/2024 05:20:39

Provedor de dados: | 74
País: | Brazil
Título: | Quantitative trait locus affecting birth weight on bovine chromosome 5 in a F2 Gyr x Holstein population
Autores: | Gasparin,Gustavo; Miyata,Marcelo; Coutinho,Luiz Lehmann; Martinez,Mário Luiz; Silva,Marcos Vinícius G. Barbosa da; Machado,Marco Antônio; Campos,Ana Lúcia; Regitano,Luciana Correia de Almeida.
Data: | 2005-12-01
Ano: | 2005
Palavras-chave: | BTA5; Birth weight; Cattle; QTL; Microsatellite markers.
Resumo: | Segregation between a genetic marker and a locus influencing a quantitative trait in a well delineated population is the basis for success in mapping quantitative trait loci (QTL). To detect bovine chromosome 5 (BTA5) birth weight QTL we genotyped 294 F2 Gyr (Bos indicus) x Holstein (Bos taurus) crossbreed cattle for five microsatellite markers. A linkage map was constructed for the markers and an interval analysis for the presence of QTL was performed. The linkage map indicated differences in the order of two markers relative to the reference map (&lt;A HREF="http://www.marc.usda.gov/"&gt;http://www.marc.usda.gov&lt;/A&gt;). Interval analysis detected a QTL controlling birth weight (p &lt; 0.01) at 69 centimorgans (cM) from the most centromeric marker with an effect of 0.32 phenotypic standard-error. These results support other studies with crossbred Bos taurus x Bos indicus populations.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000500005
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572005000500005
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.28 n.4 2005
Fonte: | info:eu-repo/semantics/openAccess