A Robertsonian translocation, rob(2;28), found in Vietnamese cattle
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Published on: August 20, 2019
K Tanaka1, Y Yamamoto, T Amano
1Laboratory of Animal Genetics, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Japan. kztana@agr.nagoya-u.ac.jp
Abstract:
A new Robertsonian translocation, rob(2;28), was discovered in a local population of the Vietnamese Cattle. The animal (2n = 59, XY) was found by Q- and R-banding to be a heterozygous carrier of a centric fusion translocation involving chromosomes 2 and 28. FISH analysis using a bovine satellite I DNA probe demonstrated that the centromeric heterochromatin block of the rob(2;28) chromosome become much smaller than its ancestors suggesting a monocentric nature of this centric fusion. This is the first report identifying a Robertsonian translocation in Southeast Asian cattle by karyotyping of banded chromosomes.
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