The frequency of chromosome aberrations in somatic cells of ukrainian buffaloes (Bubalus bubalis L.)

Dzitsiuk V., Typylo K.H.

SUMMARY. The routine, GTG- and Ag-methods of metaphase chromosome analysis were used to determine the spontaneous frequency of chromosomal aberrations and the level of chromosomal variability in the lymphocytes of Ukrainian buffaloes (Bubalus bubalis L.). It was established that within the studied animal population the diploid set of chromosomes consisted of 50 chromosomess
(2n = 50,XX; 2n = 50,XY). The individual chromosomal variability was discovered for several animals in the form of the cells with aneuploid and polyploid sets of chromosomes as well as of the structural autosomal aberrations. In particular, using the method of differenti-ally dyed chromosomes, it was found that individual females had a duplicate in one of the chromosomes of the second pair, an X-monosomia, and a chimerism by sex chromosomes. The total chromosomal instability level in peripheral blood lymphocytes averaged at 14,35 ± 2,03 % due to the damaged states of chromosomal and chromatid types. The application of Ag-method helped reveal the active NOR in six pairs of chromosomes (3p, 4p, 6q, 21q, 23q, 24q).

Key words: River Buffalo, karyotype, chromosomes, aberrations

Tsitologiya i Genetika 2020, vol. 54, no. 2, pp. 29-34

• Institute of Animal Breeding and Genetics nd.a. M.V. Zubets of NAAS, Chubynske, Ukraine

E-mail: valentynadzitsiuk gmail.com

Dzitsiuk V., Typylo K.H. The frequency of chromosome aberrations in somatic cells of ukrainian buffaloes (Bubalus bubalis L.), Tsitol Genet., 2020, vol. 54, no. 2, pp. 29-34.

In "Cytology and Genetics":
V. V. Dzitsyuk & H. T. Typylo Frequency of Chromosomal Aberrations in Somatic Cells of Ukrainian Buffaloes (Bubalus bubalis L.), Cytol Genet., 2020, vol. 54, no. 2, pp. 111–115
DOI: 10.3103/S009545272002005X

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