Radiation hybrid (RH) map of chicken GGA16 and comparison with the human genome. Marker assignation to one of the three complexes is shown (not at scale) (a). The retention frequency is indicated along the chromosome (b). The framework map is 244.9 cR long (c). Position of markers included in the comprehensive map is indicated with error bars on the right of the framework map. Markers for which the homologous region is approximately localized in the human genome are indicated (d).