The Jindoes are Korean native dogs of fine characters, which was nominated as national natural monument #53 in recognition of its value of genetic resource. Their purity has been comparatively well preserved till today, but the classical breeding meth...
The Jindoes are Korean native dogs of fine characters, which was nominated as national natural monument #53 in recognition of its value of genetic resource. Their purity has been comparatively well preserved till today, but the classical breeding method is based on physical observation of adult dogs. Therefore, the major aims of this experiment were to investigate genetic characteristics and to provide an automated approach to genotyping of the Jindoes for parentage verification using microsatellite polymorphisms.
Microsatellite markers are distributed randomly throughout the genome and many are highly polymorphic. The technique of microsatellite polymorphism analysis using a fluorescence-based automated DNA fragment analyser was developed and used to estimate genetic relationships amongst 194 dogs, including 115 Jindoes bred in Jindo county, 59 Jindoes bred outside the county and 20 Japanese native dogs. we selected nine microsatellite marker on the basis of their reliability in the polymerase chain reaction and polymorphism content with which alleles can be scored automatically by the Genotyper^TM program. By examing allelic variation at microsatellite loci, Dinucleotide microsatellite markers 134, 137, RVC1 and RVC8 were proved to be useful for studying the pedigree of the Jindo. The average number of alleles per locus is 8.5, 7.25 and 7.5 in the Jindo bred in Jindo county, the Jindo bred outside the county and Japanese native dogs, respectively. The value of Polymorphic Information Content (PIC) showing polymorphism within a breed is 0.697 in the Jindo bred in Jindo county, 0.627 in the Jindo bred outside the county and 0.695 in the Japanese native dogs. By examing allelic variation at four microsatellite loci 134, 137, RVC1 and RVC8, most the Jindo genetically similar each other. However, Although the Jindo is not different from the Japanese native dogs in the genetic relationship, two breeds of the Jindo and Japanese native dogs differ in their allele frequency distributions for all microsatellite markers that were polymorphic in tested breeds. Consequently, four canine microsatellite loci 134, 137, RVC1 and RVC8 are proved to be useful for the genetic characteristics and Individual relationship of the Jindo. Especially, canine microsatellite loci 137, RVC8 are thought to be useful for the investigation of the genetic difference in the Jindo and Japanese nativedogs.