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Zhonghua Yi Xue Yi Chuan Xue Za Zhi. 2014 Jun;31(3):388-92. doi: 10.3760/cma.j.issn.1003-9406.2014.03.029.

[Study of genetic polymorphisms of 12 short tandem repeats on X chromosome in ethnic Han population from Hebei Province].

[Article in Chinese]

Author information

1
Hebei Key Laboratory of Forensic Medicine, Department of Forensic Medicine, Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China. Email: shujinli@163.com.

Abstract

OBJECTIVE:

To investigate genetic polymorphisms of 12 X chromosome short tandem repeat (X-STR) loci in ethnic Hebei Han population using an Investigator Argus X-12 amplification kit.

METHODS:

DNA was extracted for 198 unrelated individuals (96 males and 102 females) and amplified with a fluorescence labeled multiplex PCR system. PCR products were separated and genotyped with capillary array electrophoresis.

RESULTS:

Only DXS10103 and DXS10101 showed significant linkage disequilibrium at the 12 X-STR loci. One hundred and forty-eight alleles, including 22 off-ladder (OL) alleles, were observed at the 12 X-STR loci in the population. The heterozygosity and polymorphic information content (PIC) were 0.5074-0.9143 and 0.4377-0.9079, respectively. The power of discrimination (PD) was 0.5074-0.9143 in males and 0.6876-0.9863 in females. The mean exclusion chance was 0.4377-0.9079 in the trios cases and 0.2984-0.8373 in the duo cases, respectively.

CONCLUSION:

The Investigator Argus X12 amplification system is highly polymorphic in ethnic Han population from Hebei and is useful for personal identification and paternity testing.

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