Comparative mapping of mouse Chromosome 4 and human Chromosome 9: Lv,Orm, and Hxb are closely linked on mouse Chromosome 4 |
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| Authors: | Alison Pilz Heather Moseley Jo Peters Cathy Abbott |
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| Institution: | (1) Department of Genetics & Biometry, University College London, Wolfson House, 4 Stephenson Way, NW1 2HE London, UK;(2) MRC Radiobiology Unit, Chilton, OX11 ORD Didcot, Oxon, UK |
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| Abstract: | The genes for orosomucoid (ORM-1 and ORM-2), delta-aminolevulinate dehydratase (ALAD), and hexabrachion or tenascin (HXB) all map to the q31-qter region of human Chromosome (Chr) 9. The mouse homolog of each of these genes has been mapped to Chr 4, but hexabrachion has not previously been mapped by linkage analysis. We have now ordered Orm-1, Lv (the mouse homolog of ALAD), and Hxb in an interspecific backcross panel, by use of tyrosinase related protein-1, Tyrp-1, whose human homolog maps to 9p13-pter (Abbott et al., Genomics 1991) as a reference locus. No recombinants were identified in 124 animals between Lv and Orm-1. Hxb was found to be 1.6 cM distal to Lv and Orm-1, and 4.8 cM proximal to Tyrp-1, or b. These data therefore contribute to our knowledge of the conserved synteny between HSA 9q and MMU 4. |
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