Chromosome fragility in Freemartin cattle
| Autor: | V. Barbieri, L. Iannuzzi, G. P. Di Meo, G. Beneduce, R. Buonerba, S. Albarella, V. Peretti, F. Ciotola |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Italian Journal of Animal Science, Vol 6, Iss 1s, Pp 85-87 (2010) |
| Druh dokumentu: | article |
| ISSN: | 1594-4077 1828-051X |
| DOI: | 10.4081/ijas.2007.1s.85 |
| Popis: | The aim of the present study was to verify chromosome fragility in freemartin cattle using chromosome aberration (CA) and sister chromatid exchange (SCE) tests. A total of eighteen co-twins were investigated. Fourteen animals were identified as cytogenetically chimeric (2n=60, XX/XY) while 4 were classified as normal. Freemartin cattle showed a higher percentage of aneuploid cells (18.64%) and highly significant statistical differences (P < 0.001) in mean values of gaps (4.53 ± 2.05), chromatid breaks (0.26 ± 0.51), and significant statistical differences (P < 0.005) in mean values of chromosome breaks (0.12 ± 0.43) when compared to 10 control animals from single births (aneuploid cells, 11.20%; gaps, 2.01 ± 1.42; chromatid breaks, 0.05 ± 0.22; chromosome breaks, 0.02 ± 0.14). |
| Databáze: | Directory of Open Access Journals |
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