Integration of the genetic and physical maps of the chicken macrochromosomes

A large amount of genetic mapping information has been obtained in the chic ken from the East Lansing, Compton and Wageningen reference populations. Ph ysical mapping information has however, been more limited. We have mapped 1 4 new clones, both genetically and physically, and all 14 have been assigne d to macrochromosomes. The orientation of linkage groups E01C01C11W01 (Chr 1), E06C02W02 (Chr 2), E02C03W03 (Chr 3), E05C04W04 (Chr 4), E07E34C05W05 ( Chr 5), E11C10W06 (Chr 6), E45C07W07 (Chr 7) and E43C12W11 (Chr 8) has been established. Here we present integrated maps of the eight macrochromosomes and the Z chromosome of the chicken and correlate genetic with physical di stances for chromosomes 1-3 and the Z sex chromosome.