Chromosome banding studies in cattle
Logue, D.N.
Research in Veterinary Science 25(1): 1-6
1978
ISSN/ISBN: 0034-5288 PMID: 705033 Document Number: 124352
A recent advance in the field of cytogenetics has been the ability to stain differentially specific areas or bands on the fixed chromosome. In terms of clinical and paraclinical work, C- and G-bands have been of most value to date in allowing precise identification of chromosome homologues, even in species such as cattle, where the vast majority of chromosomes are of a similar morphology. These methods have allowed, at the gross level of the chromosome, the precise identification of a number of Robertsonian translocations and certain aneuploids. In this study, 1/29 Robertsonian translocations were found in 3 breeds (Charolais, Red Poll and Simmental). Also, a 14/20 and a 6/16 Robertsonian translocation were identified, as was a 61,XXY sterile bull. In the future, these techniques will allow the identification of as yet unidentified anomalies in cattle, such as reciprocal translocations and paracentric inversions.