Table 2 Body length and adiposity phenotypes of B6.CAST and HG.CAST MMU2 speed congenic strains Strain Sex N NA (cm) Tail (cm) GFP (g) FFP (g) MFP (g) RFP (g) TF (g) AI (%) BMI B6C M 29 9.1 ± 0.04 7.9 ± 0.04 0.344 ± 0.008 0.229 ± 0.006 0.183 ± 0.006 0.066 ± 0.002 0.823 ± 0.018 3.1 ± 0.1 31.6 ± 0.3 B62P M 20 9.2 ± 0.05 7.9 ± 0.04 0.309 ± 0.010 0.235 ± 0.007 0.178 ± 0.007 0.045 ± 0.003 0.768 ± 0.023 2.9 ± 0.1 30.8 ± 0.4 B62PM M 24 9.1 ± 0.05 7.8 ± 0.05 0.304 ± 0.010 0.222 ± 0.008 0.173 ± 0.007 0.046 ± 0.003 0.746 ± 0.024 2.9 ± 0.1 31.3 ± 0.4 B62M M 27 8.9 ± 0.07 7.4 ± 0.06 0.294 ± 0.014 0.239 ± 0.010 0.214 ± 0.009 0.066 ± 0.004 0.813 ± 0.032 3.2 ± 0.1 31.4 ± 0.5 B62D M 21 9.2 ± 0.06 7.1 ± 0.06 0.259 ± 0.013 0.177 ± 0.009 0.154 ± 0.009 0.038 ± 0.004 0.629 ± 0.030 2.6 ± 0.1 28.9 ± 0.5 B6C F 39 8.6 ± 0.03 7.6 ± 0.03 0.166 ± 0.007 0.202 ± 0.005 0.141 ± 0.005 0.027 ± 0.002 0.536 ± 0.016 2.6 ± 0.1 27.7 ± 0.3 B62P F 23 8.6 ± 0.05 7.8 ± 0.04 0.134 ± 0.010 0.224 ± 0.007 0.148 ± 0.007 0.023 ± 0.003 0.528 ± 0.022 2.7 ± 0.1 26.1 ± 0.4 B62PM F 20 8.4 ± 0.05 7.4 ± 0.05 0.139 ± 0.011 0.214 ± 0.008 0.154 ± 0.007 0.023 ± 0.003 0.530 ± 0.025 2.8 ± 0.1 26.9 ± 0.4 B62M F 32 8.4 ± 0.05 7.3 ± 0.05 0.153 ± 0.010 0.204 ± 0.007 0.165 ± 0.007 0.029 ± 0.003 0.551 ± 0.023 2.8 ± 0.1 27.9 ± 0.4 B62D F 23 8.7 ± 0.06 7.0 ± 0.06 0.110 ± 0.013 0.157 ± 0.009 0.135 ± 0.009 0.019 ± 0.004 0.420 ± 0.029 2.2 ± 0.1 25.0 ± 0.5 HGC M 31 10.2 ± 0.05 8.0 ± 0.05 0.477 ± 0.013 0.317 ± 0.008 0.297 ± 0.010 0.110 ± 0.005 1.201 ± 0.030 3.3 ± 0.1 35.0 ± 0.4 HG2P M 18 10.1 ± 0.07 8.2 ± 0.07 0.428 ± 0.019 0.326 ± 0.011 0.227 ± 0.014 0.069 ± 0.007 1.051 ± 0.043 3.1 ± 0.1 32.8 ± 0.5 HG2PM M 29 10.1 ± 0.05 8.0 ± 0.05 0.439 ± 0.014 0.303 ± 0.008 0.244 ± 0.010 0.082 ± 0.005 1.068 ± 0.031 3.1 ± 0.1 33.7 ± 0.4 HG2M M 31 10.1 ± 0.05 7.4 ± 0.05 0.469 ± 0.014 0.346 ± 0.008 0.306 ± 0.010 0.136 ± 0.005 1.260 ± 0.032 3.6 ± 0.1 33.9 ± 0.4 HGC F 23 9.6 ± 0.06 7.8 ± 0.06 0.369 ± 0.015 0.305 ± 0.009 0.268 ± 0.011 0.076 ± 0.005 1.020 ± 0.035 3.9 ± 0.1 28.2 ± 0.4 HG2P F 16 9.2 ± 0.07 7.8 ± 0.07 0.248 ± 0.018 0.311 ± 0.011 0.200 ± 0.013 0.044 ± 0.006 0.804 ± 0.041 3.4 ± 0.1 28.3 ± 0.5 HG2PM F 36 9.4 ± 0.04 7.7 ± 0.04 0.277 ± 0.012 0.265 ± 0.007 0.208 ± 0.009 0.046 ± 0.004 0.797 ± 0.027 3.2 ± 0.1 27.8 ± 0.3 HG2M F 28 9.6 ± 0.05 7.2 ± 0.05 0.329 ± 0.014 0.269 ± 0.009 0.247 ± 0.010 0.064 ± 0.005 0.909 ± 0.033 3.4 ± 0.1 29.3 ± 0.4 NA, nasal-anal body length; Tail, tail length; GFP, gonadal fat pad; FFP, femoral fat pad; MFP, mesenteric fat pad; RFP, retroperitoneal fat pad; TF, summed weight of four fat pads; AI, adiposity index (TF/body weight*100) and BMI, body mass index (body weight at sacrifice/NA2 *100). Values are expressed as LSMEANS ± SEM. LSMEANS in bold are significantly different than the respective control after Bonferroni correction (B6 (critical P < 0.00625) or HG (P < 0.00833)) within each sex.