TAILIEUCHUNG - Báo cáo sinh học: "Inheritance of coat colour in the field spaniel dog"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Inheritance of coat colour in the field spaniel dog | 285 Genet Sei Evol 1996 28 285-288 Elsevier INRA Note Inheritance of coat colour in the field spaniel dog R Robinson St Stephens Nursery Stephens Road London W13 8HB UK Received 22 December 1995 accepted 13 March 1996 Summary - The varieties of the field spaniel breed have the coat colours black black and tan liver liver and tan with or without roan colouration. Retrospective analysis of litter data reveals that the colours are produced by the agouti mutant alleles solid black As and black and tan a black pigmentation B and liver brown b. Roan colouration is engendered by the gene combination SPSPTT. The breed is homozygous for long hair and the long coat enhances the effect of admixture of intermingled coloured and white hairs for the variety known as roan. dog genetics coat colour I field spaniel I breed Resume Hérédité de la couleur du pelage chez le chien Field Spaniel. Les variétés de la race canine Field Spaniel comprennent les couleurs noir noir et feu foie foie et feu avec OU sans la couleur rouanne. Une analyse retrospective d observations de portées révèle que les couleurs sont dues aux alleles mutants du locus Agouti noir uniforme As et noir et feu a1 au gene de la pigmentation noire B et son allele brun foie b. Le rouan résulte de la combinaison d un genotype recessif pour la panachure spsp et d un genotype homozygote moucheté TT. La race est homozygote pour le poil long et la longueur du poil renforce les effets de melange de poils blancs et colorés qui constituent la variété connue sous le nom de rouan. génétique canine couleur de robe Field Spaniel INTRODUCTION Although it is possible to form generalizations for the heredity of coat colour in the dog Little 1957 Robinson 1990 it has become apparent as work in the field has progressed that certain breeds possess unique mutant alleles. It is important therefore to investigate the inheritance of colour varieties in individual breeds. Comparatively recently it has been shown that two alleles at the same

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