genome cew1_PSM trackDb filesCEW1_PSM/trackDb.txt description filesCEW1_PSM/description.html twoBitPath filesCEW1_PSM/CEW1.2bit organism CEW1 defaultPos chrI:1..100000 scientificName Oscheius Tipulae htmlPath filesCEW1_PSM/description.html groups filesCEW1_PSM/groups.txt