Which genome assemblies does GREAT support?
Currently, GREAT supports a recent UCSC assembly of the well-annotated human (hg18) and mouse (mm9) genomes. Support is limited to species with sufficient annotation of gene function.
Can I use a different species or assembly?
GREAT only supports one assembly of the well-annotated human (hg18) and mouse (mm9) genomes. If you have genomic regions defined for a different species or assembly, you can use the UCSC LiftOver utility to convert to a supported assembly. The LiftOver works very well for within-species coordinate conversion (i.e. hg17 to hg18), but it can also be used as a best approximation of mapping regions in one genome to the orthologous regions of a genome for a different species.