Hello Charlotte,
Thank you for your question about finding the source of the SNP, CNV, and related data that appear in the DBA2/J mouse strain. We do not provide a browser for the DBA2/J strain on our main browser at http://genome.ucsc.edu. We provide tracks that contain SNP data from dbSNP (http://www.ncbi.nlm.nih.gov/SNP/) for the mm9 and mm10 mouse assemblies (see http://genome.ucsc.edu/cgi-bin/hgGateway). Are those the tracks that you refer to? If not, may I ask what is the web address of the browser that you are using?
If you have any further questions, please reply to gen...@soe.ucsc.edu or genome...@soe.ucsc.edu. Questions sent to those addresses will be archived in publicly-accessible forums for the benefit of other users. If your question contains sensitive data, you may send it instead to genom...@soe.ucsc.edu.
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Jonathan Casper
UCSC Genome Bioinformatics Group
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