‘ Midget ’, a new dwarfing gene in the house mouse dependant on a genetic background of small body size for its expression

  title={‘ Midget ’, a new dwarfing gene in the house mouse dependant on a genetic background of small body size for its expression},
  author={Ruth E. Fowler and Robert Geoffrey Edwards},
  journal={Genetics Research},
Midget , a new dwarfing gene in the house mouse, was found in a line ( NS ) selected for small body size. Backcrosses to, and heterozygous matings of NS mice gave midget offspring in the expected 1:1 and 1:3 ratios. Backcrosses to two other lines of mice selected for small body size resulted in fewer midget offspring than expected and in a reduced phenotypic expression of the gene, though matings between these midget offspring gave all midget progeny. A characteristic check in growth occurred… Expand

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