1984
DOI: 10.1051/gse:19840203
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Polymorphisme des caséines αs1 et α s2 de la chèvre (Capra hircus)

Abstract: Une analyse biochimique et génétique du complexe des « caséines a s » de la chèvre a été effectuée à l'aide d'échantillons de lait individuels provenant d'animaux des races Alpine chamoisée et Saanen, et de sujets croisés, dérivés pour la plupart de ces deux races, élevés dans trois grands troupeaux (Brouessy, Bourges et Moissac). Contrairement à ce qui paraissait acquis depuis le travail de R ICHARDS O N & C REAMER (1975), le lait de chèvre contient de la caséine a si ; on y retrouve donc les quatre mêmes esp… Show more

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Cited by 48 publications
(31 citation statements)
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“…To analyse genetic polymorphism of caprine caseins, various electrophoretic techniques have been used such as SDS-PAGE, alkaline or acid starch gel electrophoresis (Boulanger et al, 1984;Russo et al, 1986;Grosclaude et al, 1987;Dall'olio et al, 1989) but none of them appears to be fully satisfactory for both the resolution of <X s ,-and <Xs2-caseins and the identification of the relevant variants. Twodimensional electrophoresis, including or not isoelectric focusing (IEF) in the second dimension (Addeo et al, 1988;Tutta et al, 1991), seems to be, to date, potentially the most powerful method.…”
Section: Introductionmentioning
confidence: 99%
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“…To analyse genetic polymorphism of caprine caseins, various electrophoretic techniques have been used such as SDS-PAGE, alkaline or acid starch gel electrophoresis (Boulanger et al, 1984;Russo et al, 1986;Grosclaude et al, 1987;Dall'olio et al, 1989) but none of them appears to be fully satisfactory for both the resolution of <X s ,-and <Xs2-caseins and the identification of the relevant variants. Twodimensional electrophoresis, including or not isoelectric focusing (IEF) in the second dimension (Addeo et al, 1988;Tutta et al, 1991), seems to be, to date, potentially the most powerful method.…”
Section: Introductionmentioning
confidence: 99%
“…Following the work of Boulanger et al (1984), caprine <X s 1 and <X s 2fractions were further studied. <X s 2-Casein exhibits a rather simple genetic polymorphism with two variants (A and B) (Boulanger et al, 1984;Grosclaude et al, 1987).…”
Section: Introductionmentioning
confidence: 99%
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“…These four classes of expression are called "strong", "medium", "low" and "null" alleles associated with ca. 3.6, 1.6, 0.6 and 0 a s1 -casein g·L -1 per allele, respectively [4,14]. Thereafter, we will mainly focus on two alleles, named A and F, which are representative of "strong" and "low" classes, respectively.…”
Section: Goat S1 -Casein Polymorphism and Its Impact On Milk Compositmentioning
confidence: 99%