Additional File 4.

Metaphyseal images of female femurs from which RNA was derived for the microarray study. Images were derived from phenotyping of the femoral metaphysis by peripheral Quantitative Computerized Tomography (pQCT). The same femoral bones, from which RNA was prepared from the midshaft, were phenotyped in the distal metaphysis by one pQCT-scan at approximately 5% of bone length. Arrows indicate appearance of trabecular bone and medullary bone as well as the absence of medullary bone from red junglefowl female number 19. The noncortical bone mineral density (BMD) in mg/cm³ which in the female metaphysis represents the density of a mix between trabecular and medullary bone is presented below the images corresponding to each individual. The number corresponding to each individual is presented above the images.

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Rubin et al. BMC Genomics 2007 8:208   doi:10.1186/1471-2164-8-208