RESUMEN
OBJECTIVE@#To investigate the polymorphism of 11 canine STR loci.@*METHODS@#A fluorescent multiplex system with 11 STR loci (PEZ1, PEZ2, PEZ3, PEZ5, PEZ6, PEZ8, PEZ12, FH2010, FH2054, FH2132 and FH2611) was constructed independently and performed to amplify 105 samples from dogs. The character of these loci was analyzed with the PCR data.@*RESULTS@#The distributions of genotypes and allele frequencies of 11 STR loci were obtained. The total power of discrimination for the 11 loci in canine population was 0.9999999 and the cumulative probability of exclusion was 0.9330621. The observed heterozygosity and polymorphism information content (PIC) were 0.502 and 0.640, respectively.@*CONCLUSION@#Each of the eleven canine STR loci has a high genetic polymorphism and can be applied for the parentage testing and individual identification. The fluorescent multiplex system is a reliable method in forensic application.