Title: A case of double alleles at three Y-STR loci: forensic implications
Authors: Diederiche, M. 
Martín, P. 
Amorim, A. 
Corte-Real, F. 
Gusmão, L. 
Issue Date: 2005
Citation: International Journal of Legal Medicine. 119:4 (2005) 223-225
Abstract: In a genetic study of unrelated donors from Bahia (Brazil), one sample contained a 16 Y-STR haplotype with double peaks at three loci: DYS389 II, DYS437 and DYS439. The son of the subject had the same haplotype as found in the father. This profile was compared with a similar case found in a paternity case investigation in Madrid (Spain) and a match was found for the full 16 Y-STR haplotype. Because these three loci are located within the AZFa segment, these results are in accordance with duplication of the AZFa region that includes also other Y-STRs currently used in forensic investigation, for example DYS389I and DYS438. This case attracts our attention in the forensic interpretation of Y-haplotype profiles, because multiple alleles at various loci do not indicate forcibly that the sample under analysis is a mixture.
URI: http://hdl.handle.net/10316/8489
Rights: openAccess
Appears in Collections:FMUC Medicina - Artigos em Revistas Internacionais

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