Data/hora: 17/06/2024 15:10:45

Provedor de dados: | 74
País: | Brazil
Título: | QTL affecting body weight in a candidate region of cattle chromosome 5
Autores: | Machado,Mariana B.B.; Alencar,Maurício M.; Pereira,Andréa P.; Oliveira,Henrique N.; Casas,Eduardo; Coutinho,Luis L.; Regitano,Luciana C.A.
Data: | 2003-01-01
Ano: | 2003
Palavras-chave: | QTL; Growth traits; Microsatellite; Bovine.
Resumo: | 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 strengthens the hypothesis of a linked QTL rather than an IGF-1 effect on growth traits in the Canchim cattle.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300008
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572003000300008
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.26 n.3 2003
Fonte: | info:eu-repo/semantics/openAccess