The application of minisatellite variant repeat mapping by PCR (MVR-PCR) in a paternity case showing false exclusion due to STR mutation.

作者: Rieko Uchihi , Yoshinao Katsumata , Alec J. Jeffreys , Toshimichi Yamamoto , Keiji Tamaki

DOI: 10.1520/JFS14976J

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摘要: A boy and a girl with their mother brought paternity suit against an alleged but deceased father. We tested six conventional genetic markers, the AmpliType PM+ DQA1 twelve STR loci children together paternal grandparents. also DNA typed bloodstain found later in father's medical record. Only result at D3S1358 nineplex system excluded father from parentage of boy, whereas all markers were inclusive for girl. Accordingly, we performed sequence analysis to confirm presence exclusion or mutation. The indicated that boy's allele 17 could have originated either 16 18 by single-step mutation associated slippage loci. carried out minisatellite variant repeat mapping PCR (MVR-PCR) D1S8 (MS32) D7S21 (MS31A) mapped haplotypes individuals except MVR-PCR showed has no inconsistency relationship between grandparents, was very effective increasing index (PI) value. conclude there is biological not only

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