Genetic structure of milk proteins in Argentinian Holstein and Argentinian Creole cattle

The genetic structure of milk proteins was studied in two completely different breeds: Argentinian Holstein (dairy breed; n = 377) and Argentinian Creole cattle (native breed; n = 161). Fairly large similarities were observed among Argentinian Holstein allelic frequencies reported in the present stu...

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Detalles Bibliográficos
Autores principales: Poli, M. A., Antonini de Ruiz, Alicia Graciela
Formato: Articulo
Lenguaje:Inglés
Publicado: 1991
Materias:
Biología
Allele
Haplotype
Breed
Gametic phase
Disequilibrium
Allele frequency
Genetic structure
Genetics
Natural selection
Biology
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123082
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123082
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Allele
Haplotype
Breed
Gametic phase
Disequilibrium
Allele frequency
Genetic structure
Genetics
Natural selection
Biology
spellingShingle Biología
Allele
Haplotype
Breed
Gametic phase
Disequilibrium
Allele frequency
Genetic structure
Genetics
Natural selection
Biology
Poli, M. A.
Antonini de Ruiz, Alicia Graciela
Genetic structure of milk proteins in Argentinian Holstein and Argentinian Creole cattle
topic_facet Biología
Allele
Haplotype
Breed
Gametic phase
Disequilibrium
Allele frequency
Genetic structure
Genetics
Natural selection
Biology
description The genetic structure of milk proteins was studied in two completely different breeds: Argentinian Holstein (dairy breed; n = 377) and Argentinian Creole cattle (native breed; n = 161). Fairly large similarities were observed among Argentinian Holstein allelic frequencies reported in the present study and the values described in the literature for other Holstein populations. The high frequency of αs1-Cn gene was the most remarkable gene frequency difference between Holstein and Creole breeds. Gametic phase disequilibrium was found among three casein loci but not between casein and β-lactoglobulin loci. Both breeds showed the same gametic disequilibrium in β-Cn A/k-Cn A and β-Cn A/k-Cn B haplotypes; however, the αs1-Cn B/β-Cn A haplotype was only in disequilibrium in Holstein breed. In general, the gametic phase disequilibrium found in both breeds was similar to those described for other breeds. The possible causes of gametic disequilibrium are discussed, and the results suggest that natural selection could be the most likely explanation.
format Articulo
Articulo
author Poli, M. A.
Antonini de Ruiz, Alicia Graciela
author_facet Poli, M. A.
Antonini de Ruiz, Alicia Graciela
author_sort Poli, M. A.
title Genetic structure of milk proteins in Argentinian Holstein and Argentinian Creole cattle
title_short Genetic structure of milk proteins in Argentinian Holstein and Argentinian Creole cattle
title_full Genetic structure of milk proteins in Argentinian Holstein and Argentinian Creole cattle
title_fullStr Genetic structure of milk proteins in Argentinian Holstein and Argentinian Creole cattle
title_full_unstemmed Genetic structure of milk proteins in Argentinian Holstein and Argentinian Creole cattle
title_sort genetic structure of milk proteins in argentinian holstein and argentinian creole cattle
publishDate 1991
url http://sedici.unlp.edu.ar/handle/10915/123082
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