Haplotypes of Single Nucleotide Polymorphisms (SNPs) in casein loci of Girgentana goats explain isoelectrofocusing results.

Risultato della ricerca: Other

Abstract

Goat milk, cheese and yoghurt offer an alternative to cow milk products. In Sicilyone of the important goat breeds reared is the Girgentana. Traditionally the milkfrom Girgentana goats was used for nourishment of infants and elderly. Recently, theGirgentana breed has been in decline. This of concern, as the Girgentana may carryunique milk protein genetic variants. If health benefits of Girgentana goat milk isproven, then increasing production from this population will be of great interest. Themost abundant proteins in goat milk, as in other milks, are the caseins, αS1-, β-, αS2-and κ-casein, coded by the loci CSN1S1, CSN2, CSN1S2 and CSN3 respectively. Inother goat breeds, the casein loci have been found to be highly polymorphic, and anumber of genetic variants of the casein genes that affect milk production traits havebeen described. The aim of this study was to quantify the variation of casein lociwithin the Girgentana breed, and additionally to determine if there was anyagreement between DNA polymorphism and isoelectrofocusing (IEF) proteinexpression of αS1. Forty individuals including goats and bucks were genotyped for 9SNPs and one deletion (exon 9) in CSN1S1, 7 SNPs in CSN2, 3 SNPs in CSN1S2and 13 SNPs in CSN3. Genotypes for the deletion in exon 9 were in very goodagreement with the IEF, results; goats that were homozygous for this deletion had noor very low levels of αS1 expression, goats that were heterozygous had intermediatelevels of expression, and goats that were homozygous for the non deletion allele hadfull αS1 expression. For each casein, haplotypes of the SNP genotypes wereconstructed. There were a limited number of haplotypes within each casein locus; 6for CSN1S1 and CSN2, 3 for CSN1S2, and 7 for CSN3. The limited number ofhaplotypes indicates strong linkage disequilibrium between SNPs within each locus.Future work will determine if the haplotypes have significant effects on health andproduction traits, and their potential for use in marker assisted selection.
Lingua originaleEnglish
Pagine39-39
Numero di pagine1
Stato di pubblicazionePublished - 2006

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single nucleotide polymorphism
casein
haplotypes
goats
loci
goat breeds
goat milk
exons
breeds
goat cheese
milk
genotype
bucks
linkage disequilibrium
Girgentana (goat breed)
yogurt
dairy protein
marker-assisted selection
dairy products
milk production

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title = "Haplotypes of Single Nucleotide Polymorphisms (SNPs) in casein loci of Girgentana goats explain isoelectrofocusing results.",
abstract = "Goat milk, cheese and yoghurt offer an alternative to cow milk products. In Sicilyone of the important goat breeds reared is the Girgentana. Traditionally the milkfrom Girgentana goats was used for nourishment of infants and elderly. Recently, theGirgentana breed has been in decline. This of concern, as the Girgentana may carryunique milk protein genetic variants. If health benefits of Girgentana goat milk isproven, then increasing production from this population will be of great interest. Themost abundant proteins in goat milk, as in other milks, are the caseins, αS1-, β-, αS2-and κ-casein, coded by the loci CSN1S1, CSN2, CSN1S2 and CSN3 respectively. Inother goat breeds, the casein loci have been found to be highly polymorphic, and anumber of genetic variants of the casein genes that affect milk production traits havebeen described. The aim of this study was to quantify the variation of casein lociwithin the Girgentana breed, and additionally to determine if there was anyagreement between DNA polymorphism and isoelectrofocusing (IEF) proteinexpression of αS1. Forty individuals including goats and bucks were genotyped for 9SNPs and one deletion (exon 9) in CSN1S1, 7 SNPs in CSN2, 3 SNPs in CSN1S2and 13 SNPs in CSN3. Genotypes for the deletion in exon 9 were in very goodagreement with the IEF, results; goats that were homozygous for this deletion had noor very low levels of αS1 expression, goats that were heterozygous had intermediatelevels of expression, and goats that were homozygous for the non deletion allele hadfull αS1 expression. For each casein, haplotypes of the SNP genotypes wereconstructed. There were a limited number of haplotypes within each casein locus; 6for CSN1S1 and CSN2, 3 for CSN1S2, and 7 for CSN3. The limited number ofhaplotypes indicates strong linkage disequilibrium between SNPs within each locus.Future work will determine if the haplotypes have significant effects on health andproduction traits, and their potential for use in marker assisted selection.",
author = "Baldassare Portolano and Sardina, {Maria Teresa} and Raffaella Finocchiaro",
year = "2006",
language = "English",
pages = "39--39",

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TY - CONF

T1 - Haplotypes of Single Nucleotide Polymorphisms (SNPs) in casein loci of Girgentana goats explain isoelectrofocusing results.

AU - Portolano, Baldassare

AU - Sardina, Maria Teresa

AU - Finocchiaro, Raffaella

PY - 2006

Y1 - 2006

N2 - Goat milk, cheese and yoghurt offer an alternative to cow milk products. In Sicilyone of the important goat breeds reared is the Girgentana. Traditionally the milkfrom Girgentana goats was used for nourishment of infants and elderly. Recently, theGirgentana breed has been in decline. This of concern, as the Girgentana may carryunique milk protein genetic variants. If health benefits of Girgentana goat milk isproven, then increasing production from this population will be of great interest. Themost abundant proteins in goat milk, as in other milks, are the caseins, αS1-, β-, αS2-and κ-casein, coded by the loci CSN1S1, CSN2, CSN1S2 and CSN3 respectively. Inother goat breeds, the casein loci have been found to be highly polymorphic, and anumber of genetic variants of the casein genes that affect milk production traits havebeen described. The aim of this study was to quantify the variation of casein lociwithin the Girgentana breed, and additionally to determine if there was anyagreement between DNA polymorphism and isoelectrofocusing (IEF) proteinexpression of αS1. Forty individuals including goats and bucks were genotyped for 9SNPs and one deletion (exon 9) in CSN1S1, 7 SNPs in CSN2, 3 SNPs in CSN1S2and 13 SNPs in CSN3. Genotypes for the deletion in exon 9 were in very goodagreement with the IEF, results; goats that were homozygous for this deletion had noor very low levels of αS1 expression, goats that were heterozygous had intermediatelevels of expression, and goats that were homozygous for the non deletion allele hadfull αS1 expression. For each casein, haplotypes of the SNP genotypes wereconstructed. There were a limited number of haplotypes within each casein locus; 6for CSN1S1 and CSN2, 3 for CSN1S2, and 7 for CSN3. The limited number ofhaplotypes indicates strong linkage disequilibrium between SNPs within each locus.Future work will determine if the haplotypes have significant effects on health andproduction traits, and their potential for use in marker assisted selection.

AB - Goat milk, cheese and yoghurt offer an alternative to cow milk products. In Sicilyone of the important goat breeds reared is the Girgentana. Traditionally the milkfrom Girgentana goats was used for nourishment of infants and elderly. Recently, theGirgentana breed has been in decline. This of concern, as the Girgentana may carryunique milk protein genetic variants. If health benefits of Girgentana goat milk isproven, then increasing production from this population will be of great interest. Themost abundant proteins in goat milk, as in other milks, are the caseins, αS1-, β-, αS2-and κ-casein, coded by the loci CSN1S1, CSN2, CSN1S2 and CSN3 respectively. Inother goat breeds, the casein loci have been found to be highly polymorphic, and anumber of genetic variants of the casein genes that affect milk production traits havebeen described. The aim of this study was to quantify the variation of casein lociwithin the Girgentana breed, and additionally to determine if there was anyagreement between DNA polymorphism and isoelectrofocusing (IEF) proteinexpression of αS1. Forty individuals including goats and bucks were genotyped for 9SNPs and one deletion (exon 9) in CSN1S1, 7 SNPs in CSN2, 3 SNPs in CSN1S2and 13 SNPs in CSN3. Genotypes for the deletion in exon 9 were in very goodagreement with the IEF, results; goats that were homozygous for this deletion had noor very low levels of αS1 expression, goats that were heterozygous had intermediatelevels of expression, and goats that were homozygous for the non deletion allele hadfull αS1 expression. For each casein, haplotypes of the SNP genotypes wereconstructed. There were a limited number of haplotypes within each casein locus; 6for CSN1S1 and CSN2, 3 for CSN1S2, and 7 for CSN3. The limited number ofhaplotypes indicates strong linkage disequilibrium between SNPs within each locus.Future work will determine if the haplotypes have significant effects on health andproduction traits, and their potential for use in marker assisted selection.

UR - http://hdl.handle.net/10447/78708

M3 - Other

SP - 39

EP - 39

ER -