期刊
CYTOGENETIC AND GENOME RESEARCH
卷 142, 期 2, 页码 95-100出版社
KARGER
DOI: 10.1159/000356209
关键词
Cattle; CGH array; FISH; Reciprocal translocation
The cytogenetic analysis of a phenotypically normal bull from the Marchigiana breed revealed the presence of an abnormal karyotype due to the presence of a very long chromosome. This finding, identified in all the metaphases observed, was associated with the 2n = 60, XY karyotype, suggesting the presence of a reciprocal translocation. RBG-banding analyses identified a de novo reciprocal translocation involving BTA5 and BTA6, t(5;6)(q13;q34), while FISH analyses using cattle-specific BACs as probes enabled the confirmation and narrowed down the breakpoint regions. Array-CGH analysis also established that neither deletions nor duplications were present in the regions including the breakpoints, nor were they present elsewhere in the genome, confirming the balanced state of the translocation. (C) 2013 S. Karger AG, Basel
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