National Center for Genome Resources, Santa Fe, New Mexico, United States of America. smb@ncgr.org|National Center for Genome Resources, Santa Fe, New Mexico, United States of America. smb@ncgr.org|National Center for Genome Resources, Santa Fe, New Mexico, United States of America. smb@ncgr.org|National Center for Genome Resources, Santa Fe, New Mexico, United States of America. smb@ncgr.org