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Updated: Aug 14, 2026
High-throughput Physical Mapping of Chromosomes using Automated in situ Hybridization
Published on: June 28, 2012
A radiation hybrid map of bovine chromosome 24 and comparative mapping with human chromosome 18
E Kurar1, J E Womack, B W Kirkpatrick
1Department of Animal Sciences, University of Wisconsin-Madison, 1675 Observatory Drive, Madison, WI 53706, USA.
Abstract:
We present herein a bovine chromosome 24 (BTA24) radiation hybrid (RH) map using 40 markers scored on a panel of 90 RHs. Of these markers, 29 loci were ordered with odds of at least 1000:1 in a framework map. An average retention frequency of 17.4% was observed, with relatively higher frequencies near the centromere. The length of the comprehensive map was 640 centiray5000 (cR5000) with an average marker interval of approximately 17.3 cR5000. The observed locus order is generally consistent with currently published bovine linkage and physical maps. Nineteen markers were either Type I loci or closely associated with expressed sequences and thus could be used to compare the BTA24 RH map with human mapping information. All genes located on BTA24 were located on human chromosome 18, and previously reported regions of conserved synteny were extended. The comparative data revealed the presence of at least six conserved regions between these chromosomes.
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