Variation in coat colour gene frequencies and selection in the cats of Scotland

Genetica ◽  
1976 ◽  
Vol 46 (4) ◽  
pp. 401-412 ◽  
Author(s):  
J. M. Clark
Keyword(s):  
Coat Colour ◽  
Gene Frequencies ◽  
Colour Gene

scholarly journals Gene Frequencies in the Domestic Cats of Adelaide

1973 ◽  
Vol 26 (5) ◽  
pp. 1215 ◽  
Author(s):  
JM Clark
Keyword(s):  
Sex Ratio ◽  
Urban Areas ◽  
Human Population ◽  
Coat Colour ◽  
Domestic Cats ◽  
Gene Frequencies ◽  
Stray Cats

A survey of 600 stray cats from industrial-urban areas of Adelaide was conducted and the frequencies of some genes controlling coat colour were determined. The sample fitted a I : 1 sex ratio and comparison of observed and expected phenotypes at the orange locus established that the population was panmictic. The frequencies for d (0�326) and S (0�295) were significantly different from those in another area in Australia. A possible reason for this difference, based on different human population origins and preferences, is proposed. The frequencies of /, a, W, tb , and 0 did not differ greatly from those in other areas in Australia.

THE GENETICS OF THE COLOUR PHASES OF THE RED FOX IN THE MACKENZIE RIVER LOCALITY

1947 ◽  
Vol 25d (6) ◽  
pp. 190-215 ◽  
Author(s):  
L. Butler
Keyword(s):  
Red Fox ◽  
Low Frequency ◽  
Coat Colour ◽  
Population Trend ◽  
Population Increase ◽  
Population Cycle ◽  
Gene Frequencies ◽  
Eastern Canada ◽  
Migrant Populations ◽  
In The Wild

The red fox (Vulpes fulva) exists in the wild in three coat colour phases; red, cross, and silver or black. These three phases result from the action of one pair of alleles, the homozygotes being silver and red and the heterozygote being cross. At least two different mutations have occurred giving rise to the Canadian gene in eastern Canada and the Alaskan gene in western Canada. The mixing of these two mutant genes complicates the gene frequency analysis.The proportions of the three colour phases are shown to vary with (1) locality, (2) state of population cycle, (3) population trend, (4) migration pressure. Of these factors the variations with locality and population trend are fairly satisfactorily explained by selection but the fluctuation of colour phase proportions with the population cycle is not. On the other hand all the facts can be explained by a migration theory, with or without selection. By migration, a mixture of native and migrant populations with different gene frequencies is obtained. Such migrations tend to be rhythmic since they are connected with the population cycle. In the year that migration took place the pelt returns reveal aberrant gene frequencies or colour phase ratios. In the following years the gene frequencies quickly approach equilibrium that may be at the premigration level or at a new one depending upon the success of the migrants in establishing themselves in the breeding population.The marked diminution in the percentage silver and cross is due to the rapid population increase in an area of low frequency of the silver producing gene and the migration of this type into areas of higher frequency.

Assignment of the horse grey coat colour gene to ECA25 using whole genome scanning

2002 ◽  
Vol 33 (5) ◽  
pp. 338-342 ◽  
Author(s):  
J. E. Swinburne ◽  
A. Hopkins ◽  
M. M. Binns
Keyword(s):  
Coat Colour ◽  
Whole Genome ◽  
Genome Scanning ◽  
Colour Gene

scholarly journals On the way to functional agro biodiversity: coat colour gene variability in goats

animal ◽  
2012 ◽  
Vol 6 (1) ◽  
pp. 41-49 ◽  
Author(s):  
L. Nicoloso ◽  
R. Negrini ◽  
P. Ajmone-Marsan ◽  
P. Crepaldi
Keyword(s):  
Coat Colour ◽  
Colour Gene ◽  
Gene Variability ◽  
The Way

Gene Frequencies and Body Weights of Feral Cats, Felis catus (L.), from Five Australian Localities and from Macquarie Island

1984 ◽  
Vol 32 (2) ◽  
pp. 231 ◽  
Author(s):  
E Jones ◽  
BJ Horton
Keyword(s):  
Gene Flow ◽  
Coat Colour ◽  
Felis Catus ◽  
Combined Effects ◽  
Gene Frequencies ◽  
Feral Cats ◽  
Macquarie Island ◽  
Eastern Australia ◽  
Body Weights ◽  
Selection Gene

Frequencies of seven pelage-related genes and a coefficient of darkness were scored on groups of feral cats collected from five localities in south-eastern Australia and from Macquarie Island. There were significant differences in the frequencies of some of these genes and the coefficient of darkness between the various groups of cats. These differences were presumed to have been caused by the combined effects of natural selection, gene flow from surrounding domestic populations, and the founder effect. Significant differences in body weights of cats between some localities and for one coat colour allele were also found.

scholarly journals Authentication of “mono-breed” pork products: Identification of a coat colour gene marker in Cinta Senese pigs useful to this purpose

2016 ◽  
Vol 184 ◽  
pp. 71-77 ◽  
Author(s):  
L. Fontanesi ◽  
E. Scotti ◽  
M. Gallo ◽  
L. Nanni Costa ◽  
S. Dall'Olio
Keyword(s):  
Coat Colour ◽  
Gene Marker ◽  
Pork Products ◽  
Colour Gene

Comparative linkage mapping of the Grey coat colour gene in horses1

2005 ◽  
Vol 36 (5) ◽  
pp. 390-395 ◽  
Author(s):  
G. Pielberg ◽  
S. Mikko ◽  
K. Sandberg ◽  
L. Andersson
Keyword(s):  
Linkage Mapping ◽  
Coat Colour ◽  
Colour Gene

Assignment of the appaloosa coat colour gene (LP) to equine chromosome 1

2004 ◽  
Vol 35 (2) ◽  
pp. 134-137 ◽  
Author(s):  
R. B. Terry ◽  
S. Archer ◽  
S. Brooks ◽  
D. Bernoco ◽  
E. Bailey
Keyword(s):  
Coat Colour ◽  
Chromosome 1 ◽  
Colour Gene

scholarly journals Reduced pigmentation (rp), a new coat colour gene with effects on kidney lysosomal glycosidases in the mouse

1981 ◽  
Vol 37 (1) ◽  
pp. 95-103 ◽  
Author(s):  
S. Gibb ◽  
E. M. Håkansson ◽  
L.-G. Lundin ◽  
J. G. M. Shire
Keyword(s):  
Coat Colour ◽  
Chromosome 7 ◽  
Colour Gene ◽  
Lysosomal Glycosidases

SUMMARYA spontaneous autosomal mutation in C57BL/Tb mice, provisionally called reduced pigmentation, symbol rp, has pronounced effects on three kidney lysosomal glycosidase activities. Homozygous rprp mice have significantly higher activities of β-galactosidase, β-glucuronidase and N-acetyl-β-hexosaminidase than their heterozygous litter-mates. Homozygotes have light ears and tails, diluted fur and dark eyes. The mutation is not allelic to any known to affect lysosomal functions, or to a number of pigmentation variants with similar phenotypic effects. The locus is on chromosome 7.

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