Chromosome mapping ofSoa, a gene influencing gustatory sensitivity to sucrose octaacetate in mice
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- Capeless, C.G., Whitney, G. & Azen, E.A. Behav Genet (1992) 22: 655. doi:10.1007/BF01066636
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Strain distribution patterns among recombinant inbred strains suggested that a locus influencing taste sensitivity to sucrose octaacetate was on chromosome 6. A location forSoa was established by linkage analysis of behavioral and electrophoretic data from outbred and congenic strains and from test-cross progeny. Haplotyping of 41 outbred CFW-Cr animals with a cDNA probe showed perfect cosegregation ofSoa andPrp, a gene for salivary proline-rich proteins. Five of twelve B6. SW-Soaa strains were found to retainLdr-1, lactate dehydrogenase regulator-1, on chromosome 6 as an allelic passenger from the SWR/J donor strain (source of theSoaa Taster allele). Centimorgan distance was estimated using the ABP/Le linkage-testing strain (non-Taster,Soab) and the SWR/J strain (Taster,Soaa) in a testcross breeding system. The data are consistent with a position for theSoa locus on mouse chromosome 6, 62 cM from the centromere.