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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Comparative analysis of a BAC contig of the porcine RN region and the human transcript map: implications for the cloning of trait loci.

The poorly developed transcript maps and the limited resources for genome analysis hamper positional cloning of trait loci in farm animals. This study demonstrates that this will now be easier by the combined use of BAC contigs and the import of the near complete human transcript map. The conclusion was obtained by a comparative analysis of a 2.4-Mb BAC contig of the RN region in pigs. The contig was constructed as part of a successful positional cloning project, which identified PRKAG3 as the causative gene for the RN phenotype. A comparative map including the corresponding regions on human chromosome 2q35 and mouse chromosome 1 (region 36-44 cM) is reported. Sixteen coding sequences were mapped on the BAC contig. The majority of these were identified by BLAST searches of BAC end sequences and BAC shotgun sequences generated during the positional cloning project. Map data for the orthologues in humans were available for 12 of the 16 coding sequences, and all 12 have been assigned to 2q35. Furthermore, no evidence for any rearrangement in gene order was obtained. The extensive linkage conservation indicates that the near complete human transcript map will be an invaluable resource for positional cloning projects in pigs and other domestic animals.[1]

References

  1. Comparative analysis of a BAC contig of the porcine RN region and the human transcript map: implications for the cloning of trait loci. Jeon, J.T., Amarger, V., Rogel-Gaillard, C., Robic, A., Bongcam-Rudloff, E., Paul, S., Looft, C., Milan, D., Chardon, P., Andersson, L. Genomics (2001) [Pubmed]
 
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