LSS and skeletal dysplasia: These mutants, along with the stable transgenic mutant lines Tg(fabp10a:msmo1:pA)nu100;msmo1nu81 and Tg(fabp10:lss:pA)nu101;lssnu60 described above, provide essential tools to further elucidate the roles of msmo1 and lss in skeletal dysplasia.