Description of G bands on the chromosomes of the European domestic goose (Anser anser)

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Title Description of G bands on the chromosomes of the European domestic goose (Anser anser)
Tytuł równoległy: Charakterisierung der G-Bänder auf den Chromosomen der europäischen Hausgans ( Anser anser)
Autor: Andraszek, Katarzyna; Smalec, Elżbieta; Wrzaszcz, Łukasz
Date: 2007
Źródło: Archiv für Geflügelkunde. - 2007, vol. 71, iss. 6, pp. 272-277
Abstract: The most complete information on a karyotype is gained by means of direct observation of chromosomes obtained from dividing cells. Precise chromosome studies are based on differentiating banding of chromatids. G bands replicate in late phase S of the cell cycle, they are rich in A-T pairs and they usually occur in the genome non-coding sequences. GTG banding is a technique applied in constructing standardised karyotype patterns. A chicken karyotype standard exists only for Gallus domesticus. Limited research on the karyotypes of other poultry species results from specific characteristics of the avian karyotype (number and size of chromosomes) which make it more difficult to carry out analyses, especially on the cytogenetic level. The least studied poultry genome is that of geese. By using GTG banding on the chromosomes of Anser anser geese, the pattern of G bands on the first eight autosomes and chromosomes W and Z was established. Altogether forty-eight positive bands were determined on the analysed chromosomes.

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