ISSN 1022-7954, Russian Journal of Genetics, 2007, Vol. 43, No. 8, pp. 894–898. © Pleiades Publishing, Inc., 2007.
Original Russian Text © N.A. Golubeva, A.I. Zhigachev, 2007, published in Genetika, 2007, Vol. 43, No. 8, pp. 1079–1083.
Since 1978 , studies of mutant gene frequencies
determining coat color and length in domestic cat pop-
ulations have been conducted in Russia. In 1981, Boro-
din et al.  estimated the frequencies of mutant alleles
of seven polymorphic loci in the population of the city
of Armavir (Krasnodar krai). A low frequency of sex-
in the city population was found.
These results are in good agreement with the hypothe-
sis on low frequency of this gene in the Tebris (Iran)–
Budapest corridor passing through the North Caucasus,
southern Russia, and Ukraine . Recently, gene fre-
quencies in feline populations of Russia have not
been studied, although this issue remains of interest
in the world .
The present work was aimed at estimating
gene frequency in the Armavir cat population; examin-
ing the current distribution of genes for coat color and
length in this populations; analyze spatial heterogeneity
of three cat subpopulations separated by geographic
(the Kuban’ River) and man-made (railroad) barriers;
study temporal changes in the population by comparing
our results with the earlier data .
MATERIALS AND METHODS
In all, 260 animals were examined (the primary data
were collected by V.V. Nakonechnaya).
The territory of Armavir was arbitrarily divided in
three districts with the boundaries following a geo-
graphic (the Kuban’ River) and a man-made (the
Vladikavkaz railway line) barriers. The districts
included Staraya Stanitsa (on the right bank of the
Kiban’ River), the “old city” (between the Kuban’
River and the Railroad), and the “new city” (beyond the
Staraya Stanitsa is a district of one-storied buildings
of the settlement type. The “old city” is the historical
and cultural center of Armavir with prevailing two- to
ﬁve-storied buildings and houses of the late 19th–early
20th centuries. In this district, monuments, museums,
and cafes frequented by residents and guests of the city
are accumulated. The “new city” hosts modern devel-
opments, including several residential buildings built in
the late 20th century and an industrial zone. In all of the
three districts, the proportions of home-kept, freely
moving, and free-living cats are different because of
different housing density, social economic levels of life,
and other causes important for ecology of domestic
Thus, the total sample was divided into three parts:
sample 1: Staraya Stanitsa, 35 animals;
sample 2: “old city,” 122 animals;
sample 3: “new city,” 102 animals.
Typing was conducted by visual estimation of coat
length and color of cats encountered in the streets and
yards of the houses . Sex was determined in 101 cats.
The frequency of the sex-linked mutant gene
seven autosomal loci were estimated. The autosomal
loci included four recessive (
) and three domi-
). The phenotypic expression and inherit-
ance of the genes are described in literature .
Statistical analysis was conducted using standard
New Data on Coat Color Gene Frequencies in Cats:
1. The Armavir Population
N. A. Golubeva and A. I. Zhigachev
Department of Veterinary Genetics and Animal Husbandry, St Petersburg State Academy of Veterinary Medicine,
St Petersburg, 196084 Russia; fax: (812) 387-11-76; e-mail: email@example.com
Received March 22, 2006
—The population of domestic cats from the city of Armavir has been examined. A high frequency of
was revealed in the population. Differences among three subpopulations estimated using two genetic
distances showed heterogeneity of the Armavir cat population. The extreme samples showed highly signiﬁcant
< 0.01; = 24.67
), likely explained by the structural features of the synantropous population
and human-driven frequency- dependent selection operating in it. The feline population of Armavir underwent
signiﬁcant changes during the past two decades. The
coefﬁcient in it was 0.093;
= 0.05. The frequencies
have increased in the general population. The frequency of gene
decreased. These changes may have occurred because of genetic exchange with purebred domestic cats that
have become more popular as pets in the recent years.