1997 Volume 68 Issue 12 Pages 1166-1169
Genetic identity among the cattle produced by nuclear transfer was investigated by the genotyping system with 23 microsatellite markers, which is able to distinguish 31 trillion individuals and discriminate 37 million sires. Two groups (clone sets) of cattle, each consisting of 5 individuals cloned from one embryo, were analyzed with leukocyte DNA collected at the age of 10 (male; No. 45-49) and 15 months (female; No. 186-190), respectively. The genotypes judged by the 23 microsatellite markers were identical in each clone set. Thus, it is suggested that the genomic DNA of the cattle cloned from the same embryo are genetically identical.