Data/hora: 16/06/2024 06:21:27

Provedor de dados: | 74
País: | Brazil
Título: | k-Casein, b-lactoglobulin and growth hormone allele frequencies and genetic distances in Nelore, Gyr, Guzerá, Caracu, Charolais, Canchim and Santa Gertrudis cattle
Autores: | Kemenes,Paola Augusta; Regitano,Luciana Correia de Almeida; Rosa,Artur Jordão de Magalhães; Packer,Irineu Umberto; Razook,Alexander George; Figueiredo,Leopoldo Andrade de; Silva,Nirlei Aparecida; Etchegaray,Maria Antônia L.; Coutinho,Luiz Lehmann.
Data: | 1999-12-01
Ano: | 1999
Resumo: | The genotypes for k-casein (&lt;FONT FACE="Symbol"&gt;k&lt;/FONT&gt;-CN), &lt;FONT FACE="Symbol"&gt;b&lt;/FONT&gt;-lactoglobulin (&lt;FONT FACE="Symbol"&gt;b&lt;/FONT&gt;-LG) and growth hormone (GH) were determined by polymerase chain reaction (PCR) and restriction enzyme digestion in seven breeds of cattle (Nelore, Gyr, Guzerá, Caracu, Charolais, Canchim and Santa Gertrudis). &lt;FONT FACE="Symbol"&gt;k&lt;/FONT&gt;-Casein had two alleles with the A allele occurring at a higher frequency in Bos indicus breeds (0.93, 0.92 and 0.91% for Gyr, Guzerá and Nelore, respectively). The &lt;FONT FACE="Symbol"&gt;b&lt;/FONT&gt;-lactoglobulin locus had two alleles in all of the breeds. European breeds had a higher frequency of the &lt;FONT FACE="Symbol"&gt;b&lt;/FONT&gt;-LG A allele than Zebu breeds. The GH locus had two alleles (L and V) in Bos taurus and was monomorphic (L allele only) in all of the Bos indicus breeds evaluated. The highest frequency for the V allele was observed in Charolais cattle. The markers used revealed a considerable similarity among breeds, with two main groups being discernible. One group consisted of Zebu and Santa Gertrudis breeds and the other consisted of European and Canchim breeds.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571999000400012
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47571999000400012
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.22 n.4 1999
Fonte: | info:eu-repo/semantics/openAccess