title: Developmental interactions of cells mutant for Strong's luxoid gene with normal cells in chimeric mice.
abstract: Mouse chimeras were made by fusing embryos from the albino BALB/cFo normal skeleton strain producing a slow variant isozyme of glucose phosphate isomerase (GPI) with embryos from the black pigmented SH strain carrying Strong's luxoid gene (symbol: 1st) for skeletal anomalies and producing a fast GPI variant. All chimeras were estimated to bALB/cFo mice to determine the mosaic status of their gonads. In addition, the quantitative proportions of BALB/cFo and SH cells in skin and limb muscles of chimeras were determined by visual estimation of the degree of coat pigmentation and by a serial dilution method applied to electrophoresis and GPI isozyme reaction of limb muscle homogenates. Skeletons of all chimeras and of representative samples of BALB/cFo and SH mice were examined and graded for expression of a number of normal and mutant skeletal characteristics. The most important conclusion of this study is that there was a definite quantitative effect on the development of skeletal characteristics exerted by the relative amount of BALB/ cFo and SH cells present in a chimera such that a structure could vary from normal to entirely mutant, depending on the proportion of each type of cell present.
mesh_terms: D000818:Animals; D002678:Chimera; D003433:Crosses, Genetic; D005260:Female; D005787:Gene Frequency; D005796:Genes; D005838:Genotype; D005956:Glucose-6-Phosphate Isomerase / Q000235:genetics*; D007527:Isoenzymes / Q000235:genetics; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008817:Mice, Mutant Strains; D009154:Mutation; D011247:Pregnancy
chemical_list: D007527:Isoenzymes; D005956:Glucose-6-Phosphate Isomerase