Comparison between the G-banded karyotype of the aoudad (Ammotragus lervia) and sheep (Ovis aries).
Karyotypes of the aoudad and sheep were compared on the basis of G-banded chromosomes at the 450 band level. The common G-banded karyotype showed the homology of all aoudad chromosomes (2n=58) with sheep chromosomes (2n=54) or sheep chromosome arms. The results of cytogenetic investigations suggest that in this case karyotype evolution has led to reduction in chromosome number as a result of centric fusions. The formation of the first metacentric chromosome occurred in the aoudad. The homology of the G-banding pattern in sheep and aoudad suggests the conservation in linear arrangement of genetic material. Thus comparative cytogenetics can be a useful tool in gene mapping.
Słota
E
E
Department of Immuno and Cytogenetics, National Research Institute of Animal Production, Balice/Kraków, Poland. eslota@izo.krakow.pl.
Kozubska-Sobocińska
A
A
Bugno
M
M
Giemza-Marek
A
A
Kulig
B
B