Year: 2020
Pages: 300-317
Number: Volume 12, issue 2
Type: scientific article
DOI: https://doi.org/10.31301/2221-6197.bmcs.2020-17
Topic: Article
Authors: Chemeris A.V., Garafutdinov R.R.!, Sagitov A.M., Sagitova M.A., Mikhailenko K.I., Zubov V.V., Vasilov R.G., Anisimov V.A.!, Khusnutdinova E.K., Alekseev Ya.I., Kurochkin V.E., Vorobev A.A., Aminev F.G., Chemeris D.A., Slominsky P.A.!, Lavrov G.S.!
Microhaplotypes that carry a certain number of SNPs (Single-Nucleotide Polymorphism) are a new type of markers in forensic research for DNA identification of individuals, requiring comparison of data on both paired chromosomes, which is more correctly considered as a microdiplotype analysis. The main method of identifying SNPs in microhaplotypes (microdiplotypes) is massively parallel sequencing. In comparison with individual SNP, a higher discriminating ability of SNPs within microhaplotypes considering their cis/trans relationships has been demonstrated, for family and ancestral analyses, as well as for the analysis of mixed biological samples, which is highly demanded in DNA forensics. The evolution of microhaplotypes used in DNA forensics is shown in the form of a decrease in their size with a simultaneous increase in the number of SNPs in them. Several selected microhaplotypes are presented, including both bi-, and tri- and tetraallelic SNPs flanked by genome nucleotide sequences in which polymorphic nucleotides have not yet been identified and which can serve as places for annealing primers.
DNA, single-nucleotide polymorphism, SNP, microhaplotypes, phased SNPs, cis/trans relationships of SNPs, microdiplotypes, DNA forensics, DNA identification, massively parallel sequencing, MPS