Genome-wide speed congenic strains and summary of QTL effects. White bars indicate the boundaries of CAST donor regions and hatched bars indicate intervals of unknown genotype. The minimum physical intervals (Mbp) of each donor region are listed in Table 1. To provide a general summary of the results, MMU2 is divided into five chromosomal regions (I, II, III, IV and V). Phenotypic differences for male and female (+/+ and hg/hg) mice relative to the appropriate controls are listed. For congenics outside of MMU2, a general summary of QTL effects is listed to the right of each donor region. Abbreviations: WT, body weight; GR, growth rate; T, tail length; NA, nasal-anal body length; TF, total weight of four fat pads; AI, adiposity index and BMI, body mass index.