DUNNINGTON, E.A., Poultry Science Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States
GAL, O., Department of Genetics, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
PLOTSKY, Y., Department of Genetics, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
HABERFELD, A., Department of Genetics, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
KIRK, T., Poultry Science Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States
GOLDBERG, A., Department of Genetics, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
LAVI, U., Department of Horticulture Genetics and Breeding, Agricultural Research Organization, Bet Dagan, Israel
CAHANER, A., Department of Genetics, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
SIEGEL, P.B., Poultry Science Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States
HILLEL, J., Department of Genetics, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel

Summary Two lines of White Plymouth Rock chickens that have been divergently selected for 8‐week body weight for 31 generations were compared for patterns of DNA fingerprints (DFP). Digestion of DNA with HinfI and hybridization to Jeffreys' minisatellite probe 33.6 resulted in DFPs that were relatively similar within lines (bandsharing = 0.50) and less similar between lines (bandsharing = 0.22). Analyses of scorable DFP bands produced by mixing DNA from individuals within lines indicated that 48% were line‐specific. Causes for the differences in DFP patterns between lines and for occurrence of line‐specific bands for the two lines divergently selected for body weight are discussed. 1990 International Society for Animal Genetics