Mutant allele frequencies in domestic cat populations of six Soviet cities

Genetic structure of different populations of domestic cat in Spain, Italy and Argentina at a micro-geographic level

“…The p(O) frequency has been calculated using the maximun-likelihood formulas of Robinson and Silson (1969) and Robinson (1972) assuming a sex-ratio 1:1, p(O) = (2a + b)/2N, where a is number of orange (O/O and O/-), b is number of tortoiseshell phenotypes (O/o), and N is total sample size. The other allele frequencies were calculated using the Hardy-Weinberg equilibrium formu as (Borodin et al 1978). Nei (1973) ger.ic diversity analysis at both population levels with the following statistics were obtained: Ht -genie diversity in the total population, H s -average gene diversity within subpopulations, D s t -average gene diversity between subpopulations, G s t -gene differentiation between subpopulations relative to the gene diversity in the total population, Dm -absolute intersubpopulational gene diversity.…”

New data on coat color mutant gene frequencies in domestic cats of the European part of Russia (the City of Kamyshin)

“…In this situation, the present territory of Russia remains scarcely studied. In total, the data on gene frequencies are currently available for 21 cities and settlements of the Russian Federation [2][3][4][5][6][7][8][9][10][11][12][13]. Byk ovskaya and Tsios [14] reported the domestic cat phe notype frequencies in the population of Ussurisk (Pri morsky krai).…”

“…This corridor stretches from Western Europe through the Ukraine to the south of Russia, through the Cau casus to Iran [3,4,6,7]. Another unresolved issue is the absence of cats with classic (marbled) coat color pattern (t b gene) within the narrow zone on the line from Budapest, through Samara, to Novosibirsk [3,6].…”

“…At present, the data on gene frequencies are available for two cat populations (the cities of Samara and Rostov on Don) [3,7]. These populations are most close to the population examined, equally distant from it, and are located within the zones mentioned above.…”

“…Moreover, Kamyshin (estab lished in 1668 [25]) is historically younger than Samara (1586) and geographically closest to it cities of Saratov (1590) and Volgograd (1555). Thus, the genetic profile of the domestic cat popu lation from Kamyshin demonstrates intermediate [3]; RND, Rostov on Don [6]; A81, Armavir [6]; A03, Armavir [12]; KAM, Kamyshin; GOM, Gomel (Belarus) [7]; ORD, Ordzhonikidze; SEV, Sevastopol (Ukraine) [7]. position with respect to the frequencies of key alleles, like O and t b , thereby confirming the existence of the corridor for the first allele, and the absence zone for the second allele.…”