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Dominant Red Coat C...
Dominant Red Coat Color in Holstein Cattle Is Associated with a Missense Mutation in the Coatomer Protein Complex, Subunit Alpha (COPA) Gene
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- Dorshorst, Ben (author)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Science for Life Laboratory, SciLifeLab
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Henegar, Corneliu (author)
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Liao, Xiaoping (author)
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- Almén, Markus Sällman (author)
- Uppsala universitet,Science for Life Laboratory, SciLifeLab,Institutionen för medicinsk biokemi och mikrobiologi,Genomik
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- Rubin, Carl-Johan (author)
- Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Science for Life Laboratory, SciLifeLab,Genomik
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Ito, Shosuke (author)
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Wakamatsu, Kazumasa (author)
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Stothard, Paul (author)
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Van Doormaal, Brian (author)
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Plastow, Graham (author)
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Barsh, Gregory S. (author)
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- Andersson, Leif (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Uppsala universitet,Science for Life Laboratory, SciLifeLab,Institutionen för medicinsk biokemi och mikrobiologi,Genomik,Institutionen för husdjursgenetik (HGEN),Department of Animal Breeding and Genetics,Uppsala University
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(creator_code:org_t)
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- 2015-06-04
- 2015
- English.
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In: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 10:6
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Abstract
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- Coat color in Holstein dairy cattle is primarily controlled by the melanocortin 1 receptor (MC1R) gene, a central determinant of black (eumelanin) vs. red/brown pheomelanin synthesis across animal species. The major MC1R alleles in Holsteins are Dominant Black (MC1R(D)) and Recessive Red (MC1R(e)). A novel form of dominant red coat color was first observed in an animal born in 1980. The mutation underlying this phenotype was named Dominant Red and is epistatic to the constitutively activated MC1R(D). Here we show that a missense mutation in the coatomer protein complex, subunit alpha (COPA), a gene with previously no known role in pigmentation synthesis, is completely associated with Dominant Red in Holstein dairy cattle. The mutation results in an arginine to cysteine substitution at an amino acid residue completely conserved across eukaryotes. Despite this high level of conservation we show that both heterozygotes and homozygotes are healthy and viable. Analysis of hair pigment composition shows that the Dominant Red phenotype is similar to the MC1R Recessive Red phenotype, although less effective at reducing eumelanin synthesis. RNA-seq data similarly show that Dominant Red animals achieve predominantly pheomelanin synthesis by down regulating genes normally required for eumelanin synthesis. COPA is a component of the coat protein I seven subunit complex that is involved with retrograde and cis-Golgi intracellular coated vesicle transport of both protein and RNA cargo. This suggests that Dominant Red may be caused by aberrant MC1R protein or mRNA trafficking within the highly compartmentalized melanocyte, mimicking the effect of the Recessive Red loss of function MC1R allele.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi -- Medicinsk bioteknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology -- Medical Biotechnology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Bioteknologi med applikationer på växter och djur -- Genetik och förädling inom lantbruksvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agricultural Biotechnology -- Genetics and Breeding in Agricultural Sciences (hsv//eng)
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Dorshorst, Ben
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Henegar, Corneli ...
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Liao, Xiaoping
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Almén, Markus Sä ...
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Rubin, Carl-Joha ...
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Ito, Shosuke
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Wakamatsu, Kazum ...
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Stothard, Paul
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Van Doormaal, Br ...
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Plastow, Graham
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Barsh, Gregory S ...
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Andersson, Leif
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Medical Biotechn ...
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and Medical Biotechn ...
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AGRICULTURAL SCI ...
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and Agricultural Bio ...
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PLOS ONE
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Uppsala University
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Swedish University of Agricultural Sciences