The karyotype of domestic waterfowl: ducks - RBG chromosome pattern.

摘要

The objective of the study was to describe the karyotype of two duck species: the Pekin (Anas platyrhynchos) and the Muscovy (Cairina moschata) utilising the RBG banding technique of chromosome staining. The comparison between the species was done on Mule crosses. Chromosomal preparations obtained from an in vitro culture of blood lymphocytes were stained with the RBG technique. The first eight largest pairs of autosomes and ZW sex chromosomes were analysed. The localization of R-bands was determined and the ideograms of the banded patterns of the analysed chromosomes were drawn. No differences were found in the banded pattern of the chromosomes in the first, fourth, sixth pair of autosomes and W sex chromosome. Differences in the arrangement of bands were observed on the second, third, fifth and seventh pair of autosomes and the sex Z chromosome.