Chromosome assignment of six dog genes by FISH, and correlation with dog-human Zoo-FISH data.
Cross-species chromosome painting analyses have recently demonstrated the presence of regions of conserved synteny between the human and domestic dog genomes, aiding the search for candidate genes for inherited traits. Concerted efforts to subchromosomally assign substantial numbers of dog gene sequences are now needed in order to refine these comparative data, both in terms of marker density and resolution. We have developed novel PCR markers representing three dog genes ( ALB, FOS, HNRPA2B1) for which no sequence or mapping data were previously available, to our knowledge. These, in addition to three gene markers previously described ( ALDOA, RPE65, VCAM1), were used to isolate and chromosomally assign corresponding large insert genomic clones by fluorescence in situ hybridization (FISH). Chromosome assignments for these six dog genes are discussed in terms of those of the human orthologues, and correlated with existing comparative mapping information, identifying one apparent exception to existing Zoo-FISH data, and aiding refinement of the boundaries of conserved chromosome segments in both genomes.[1]References
- Chromosome assignment of six dog genes by FISH, and correlation with dog-human Zoo-FISH data. Thomas, R., Breen, M., Binns, M.M. Anim. Genet. (2001) [Pubmed]
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