DNA polymorphism in locus D1S80 in Poland. DNA profiling and detection of new alleles by heteroduplex formation between alleles of the same size

• Authors: J. Kwiatkowska , K. Dziechciowska , D. Lisiecka , R. Slomski
• Languages of publication: EN

Abstracts

EN

We have analysed allele distribution at the highly polymorphic variable number of tandem repeats (VNTR) locus D1S80 (pMCT118) in the Polish population using the polymerase chain reaction (PCR) technique. Characteristics of the D1S80 locus makes it a very useful marker for population genetic research, genetic linkage studies and forensic identification of individuals. During our routine application of the D1S80 marker to paternity testing in several cases of homozygosity detected by polyacrylamide gel electrophoresis, heteroduplex formation for alleles 18 and 24 was also observed. Direct sequencing of PCR products revealed that alleles 18 and 24 of locus D1S80 actually represent a mixture composed of different sequences. Our observations indicate that identification of some 18 and 24 VNTR alleles based only on size estimated in electrophoretic analyses could lead to errors in paternity testing and DNA profiling.

Keywords

EN

DNA POLYMORPHISM; DNA SEQUENCING; HETERODUPLEX; PCR

Discipline

• GENETICS: GENETICS

• Publisher: Institute of Plant Genetics, Polish Academy of Sciences
• Journal: Journal of Applied Genetics
• Year: 1997
• Volume: 38
• Issue: 3
• Pages: 335-341

Contributors

author

J. Kwiatkowska

author

K. Dziechciowska

author

D. Lisiecka

author

R. Slomski

• Document Type: article
• Publication order reference: R. Slomski, Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479 Poznan, Poland.