Allele frequencies in a domestic cat population in a country area of northern Moravia, Czechoslovakia

Abstract

The frequencies of alleles responsible for colour of cat fur were studied by method of house-to-house survey in a population of domestic cats in northern Moravia, Czechoslovakia.Of the total of 249 adult cats examined, 114 animals were males and 135 females, the sex ratio being 0.458. The following allelic frequencies were recorded: 0 ----0.016, a = 0.646, t b = 0.288 and S = 0.237. No other alleles were recorded in the phenotype. The results are compared with other populations in Czechoslovakia and other European countries.

Pelage mutant allele frequencies in domestic cat populations of Poland

“…This area is, presumbly, connected with western Europe through Fennoscandia, being adjacent to an area of frequencies between 0.40 and 0.30 shown by the northeast Polish populations (Warsaw, Gdansk, Olecko, Gdynia) and those of southern Sweden (O.34) 30 , Bernese Oberland (0.36) I7 , • Dalmatia (0.32)", Malta (0.33) l6 , Crete (0.34) 33 , and Chios (0.31 and 0.34) 36 . Generally to the east of the 0.30 line the t b frequency is subject to further gradual decrease towards a zero frequency axis from Budapest 10 to Kuibyshev 6 , which is consistent with frequencies observed in Poland and those of Go-' mel' (0.09) M , northern and southern Moravia (0.29 and 0.08, respectively) 37 The Polish populations establish the existence of a small area in central Europe in which the incidence of the "blue" dilution allele (d) is very low. Both the zero frequencies recorded for northern and southern Moravia 37 and the distribution pattern in Poland suggest that this area also involves Germany and, perhaps, some south Baltic regions of the U.S.S.R. and Sweden as well.…”

“…Generally to the east of the 0.30 line the t b frequency is subject to further gradual decrease towards a zero frequency axis from Budapest 10 to Kuibyshev 6 , which is consistent with frequencies observed in Poland and those of Go-' mel' (0.09) M , northern and southern Moravia (0.29 and 0.08, respectively) 37 The Polish populations establish the existence of a small area in central Europe in which the incidence of the "blue" dilution allele (d) is very low. Both the zero frequencies recorded for northern and southern Moravia 37 and the distribution pattern in Poland suggest that this area also involves Germany and, perhaps, some south Baltic regions of the U.S.S.R. and Sweden as well. In every direction outside of this are^ the d frequency appears to rise rapidly in the immediate vicinity, but more slowly at greater distances.…”

“…There are in northern Poland several populations having unusually high levels (above 0.50) of the piebald spotting (5) allele, quite unlike most of western Europe. Frequencies in the south of Poland are not as elevated, but many stand above those found in northern and southern Moravia (0.24 and 0.22, respectively) 37 , Vienna (O.17) 3 , parts of Greece 33 , etc. These data suggest a general north-south cline in the area, but further studies to the east and west will be required to confirm this and reveal its extent.…”

“…The occurrence of the nonagouti allele (a) at frequencies above 0.70 in Poland (Gdynia, Sopot, Gdafisk, Pozna/i, Wroc/aw, Cieszyn, Olecko, Suwa/ki, Bia/ystok, Bia/owieza, Rzesz6w, PrzemySl) suggests that an area of high a incidence in Europe is, in fact, displaced much more eastwards than it was formerly assumed 30 . The relatively low frequencies found in the western (Kojbbrzeg, Miodnica) and southern (Tyniec, Brzesko, Jurk6w-Chysz6wki-P6/rzeczki) populations of Poland and those observed in southern Moravia (O.53) 37 , Vienna (0.56) 3 , Venice (0.58), Siracusa (0.56) l9 , Asiatic part of Istanbul (0.60) 36 , Budapest (0.60) 10 , Ordzhonikidze (Ukraine) (0.60), Gomel' (0.60) 14 and Leningrad (0.57) 6 seem to mark out the western margin of an area in Eurasia with frequencies under 0.60 7 .…”

“…The scarcity of these phenotypes in Polish populations establishes low frequencies of the sex-linked orange allele (0), all but one being under 0.10. Similar low values have been found in Rabat (O.O9) 13 , Lisbon (0.07), Carnac (0.08) 34 , Tours (0.06), Paris (0.06), Marseilles (0.08), Nice (0.06) 21 , Rome (0.09), Venice (0.06) l9 , Budapest (0.08) l0 , southern and northern Moravia (0.02 and 0.03, respectively) 37 , southern Sweden (O.O6) 30 , Ordzhonikidze (Ukraine) (0.03) 14 , Rostov on Don (0.07), Krasnodar (0.07) 7 , Armavir (0.04) 25 , Baku (0.09) 7 , Tabriz (0.06) and Shiraz (0.06) 28 . Thus, the Polish populations provide supporting evidence for the existence of three narrow, radiating corridors of low O incidence connecting parts of northwest Africa and western Europe, part of Scandinavia and southwest Asia through central Europe.…”