A NEW RECIPROCAL TRANSLOCATION(7Q-) IN THE DOMESTIC PIG(15Q)

A reciprocal translocation was identified in a phenotypically normal L arge White boar. Chromosome preparations from the carrier were studied by flow sorting, chromosome painting and G-banding. The flow karyotyp e displayed one additional clearly distinguishable peak, while in situ hybridization and G-banding showed two abnormal chromosomes involved in the translocation. All the results suggested that the translocation involved chromosomes 7 and 15 and the karyotype investigated was 38,X Y,rcp(7;15)(q24;q12). The parents and three full sibs of the carrier h ad normal karyotypes. It would seem that the translocation had arisen de novo.