Compound mosaicism, caused by B chromosome variability, in the Chinese raccoon dog (Nyctereutes procyonoides procyonoides).
The distribution of B chromosomes in a group of twenty-six farm Chinese raccoon dogs was analysed using Giemsa staining and sequentional Q/C banding techniques. It was shown that three different types of B chromosomes are widely distributed among the studied animals. The variability of the B chromosome number was limited (0-4) and two B chromosomes occurred with the highest frequency. Mosaic karyotypes appeared to be very common in this species. Only two animals had a stable karyotype in terms of the B chromosome number. The mosaicism of the B chromosomes had a compound character, since karyotypes of the studied raccoon dogs differed in terms of the number of Bs as well as the presence of the three morphological types of the Bs.
Szczerbal
Izabela
I
Department of Genetics and Animal Breeding, Faculty ofAnimal Science, Agricultural University of Poznań, Wołyńska 33, 60-637 Poznań, Poland. izabel@jay.au.poznan.pl
Kaczmarek
Monika
M
Switonski
Marek
M
D000818:Animals; D002874:Chromosome Mapping; D002875:Chromosomes; D007621:Karyotyping; D009030:Mosaicism; D046031:Raccoon Dogs / Q000235:genetics*