[galaxy-dev] no reference genome listed for NGS bowtie or bwa

The "Select a reference genome" popup in the NGS mapping section is empty for the Bowtie and BWA tools on my local Galaxy install (latest release). How can I populate it? Dean A. Snyder Senior Programmer/Analyst Center for Inherited Disease Research (CIDR) Johns Hopkins School of Medicine Bayview Research Campus 333 Cassell Dr, Triad Bldg, Suite 2000 Baltimore, MD 21224 www.cidr.jhmi.edu cell:717 668-3048 office:410-550-4629