Hi, Xiaowu, I am not familiar with genome data. I know that the source data for the mgu74a in bioc release 1.8 was downloaded from UCSC Genome Database on March 19, 2006. Also, the source data for the mgu74a in bioc release 1.6 was downloaded in April, 2005. According to this page: http://genome.ucsc.edu/FAQ/FAQreleases, I guess it means the mgu74a in release 1.8 and 1.6 is built upon mm8 and mm6, respectively. You can download them from http://www.bioconductor.org/download/metadata/ But again, I am not 100% sure about my answer. Therefore I forward this email to bioc mailinglist. Hope the experts here can help to verify the answer. thanks Nianhua Li Computational Biology, PHS, FHCRC Xiaowu Gai wrote: > Hi, > > I would like to know which build of the mouse genome is the mgu74a package > is built upon. mm8? Can you tell me where I can get a copy of the package > that is built upon mm6? > > Thanks a lot! > > Xiaowu Gai > > _______________________________________________ > biocannotation mailing list > biocannotation at lists.fhcrc.org > http://lists.fhcrc.org/mailman/listinfo/biocannotation >