Data/hora: 01/06/2024 01:24:26

Provedor de dados: | 54
País: | Brazil
Título: | Milk protein polymorphisms in Brazilian Zebu cattle
Autores: | Silva,Ivana Tramontina da; Del Lama,Marco Antonio.
Data: | 1997-12-01
Ano: | 1997
Resumo: | Five bovine milk protein polymorphisms were studied in Zebuine cattle raised in Brazil, through horizontal electrophoresis on starch gel containing urea and 2-mercaptoethanol, using basic and acidic buffer systems. Allelic frequencies for &lt;FONT FACE="Symbol"&gt;a&lt;/FONT&gt;-La, &lt;FONT FACE="Symbol"&gt;b&lt;/FONT&gt;-Lg, &lt;FONT FACE="Symbol"&gt;a&lt;/FONT&gt;S1-Cn, &lt;FONT FACE="Symbol"&gt;b&lt;/FONT&gt;-Cn and &lt;FONT FACE="Symbol"&gt;k&lt;/FONT&gt;-Cn loci were estimated in six Gyr herds (N = 283), six Guzerat herds (N = 205), one Nelore herd (N = 17) and one Sindi herd (N = 22), all from São Paulo or Minas Gerais State, Brazil. Genotypic frequencies observed for each locus and breed studied are in accordance with the assumption of genetic equilibrium, demonstrating absence of high inbreeding levels for the breeds tested. The FST value found indicated significant genetic differentiation among breeds; however, the Gyr and Guzerat herds showed significantly different gene frequencies. Genetic distance estimates among zebuine breeds studied and the Holstein breed, taken as a reference for a taurine breed, showed strong differences between these two racial groups
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551997000400011
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S0100-84551997000400011
Formato: | text/html
Fonte: | Brazilian Journal of Genetics  v.20 n.4 1997
Fonte: | info:eu-repo/semantics/openAccess