Population genetic analysis of the GlobalFiler STR loci in 748 individuals from the Kazakh population of Xinjiang in northwest China

Abstract

The six-dye GlobalFiler™ Express PCR amplification kit incorporates 21 commonly used autosomal short tandem repeat (STR) loci and three gender determination loci. In this study, we analyzed the GlobalFiler STR loci on 748 unrelated individuals from a Chinese Kazakh population of Xinjiang, China. No significant deviations from Hardy-Weinberg equilibrium and linkage disequilibrium were observed within and between 21 autosomal STR loci. SE33 showed the greatest power of discrimination in Kazakh population. The combined power of discrimination of Kazakh was 99.999999999999999999999996797 %. No significant differences of allele frequencies were observed between Kazakh and Uyghur at all 15 tested STR loci, as well as Mongolian. Significant differences were only observed between Kazakh and the other Chinese populations at TH01. Multiple STR loci showed significant differences between Kazakh and Arab, as well as South Portuguese. The multidimensional scaling plot (MDS) plot and neighbor-joining tree also showed Kazakh is genetically close to Uyghur.

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  • 26 February 2020

    ‘Concerns have been raised about the ethics approval and informed consent procedures related to the research reported in this paper. The paper includes the following author declarations: “Peripheral blood samples were collected from these individuals after acquiring their informed consent”. Editorial action will be taken as appropriate once an investigation of the concerns is complete and all parties have been given an opportunity to respond in full.’

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Acknowledgments

This study was supported by grants from the National Science Foundation of China (31271338), Project of Chinese Ministry of Education (113022A) and the National High Technology Research and Development Program (2012AA021802).

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Correspondence to Liming Li or Shilin Li.

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The authors declare that they have no competing interests.

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Honghua Zhang and Shuping Yang contributed equally to this work.

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Zhang, H., Yang, S., Guo, W. et al. Population genetic analysis of the GlobalFiler STR loci in 748 individuals from the Kazakh population of Xinjiang in northwest China. Int J Legal Med 130, 1187–1189 (2016). https://doi.org/10.1007/s00414-016-1319-2

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Keywords

  • Short tandem repeat
  • GlobalFiler
  • Kazakh
  • Xinjiang