Abstract: To further enrich the genetic data of the Chinese Xinjiang Mongolian group, the genetic distribution and forensic parameters of 19 autosomal short tandem repeats (STRs) were investigated. Altogether, 249 alleles were observed in these 19 STRs. The mean values of the polymorphism information content (PIC), match probability (MP), discrimination power (DP), and probability of exclusion (PE) for these 19 STRs were 0.7775, 0.0699, 0.9301, and 0.6085, respectively. Additionally, the cumulative DP and PE values obtained in the Mongolian group were 0.999 999 999 999 999 999 999 995 67 and 0.999 999 992 163, respectively. Furthermore, population genetic analysis of the Mongolian group and 20 published populations was conducted based on the population data of 15 overlapping STRs. Genetic distances indicated that the Mongolian group had closer genetic similarities with the Uyghur, Xibe, and other Chinese populations rather than the other continental populations. Multidimensional scaling analysis further revealed that the Mongolian group possessed similar genetic distributions as most Chinese populations. To sum it all up, these STRs could be used as an extremely efficient tool for forensic applications in the Xinjiang Mongolian group.

常染色体19个STR位点在新疆蒙古族中的遗传多态性和法医学价值研究

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[11]List of electronic supplementary materials

[12]Data S1 Materials and methods

[13]Fig. S1 Reverse triangular plot of the Lewontin’s D' values for 19 pairwise STRs in the Mongolian group

[14]Table S1 Populations used as compared populations and their corresponding references

[15]Table S2 Allele frequencies and forensic statistical parameters of 19 STRs in the Mongolian group

[16]Table S3 Genetic distances (D_A) among 21 populations based on the allele frequencies of 15 STRs

[17]Table S4 Fixation index (F_ST) and their corresponding P-values of the pairwise populations