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J Forensic Sci. 2006 Nov;51(6):1298-314.

Testing and evaluation of 43 "noncore" Y chromosome markers for forensic casework applications.

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  • 1Graduate Program in Biomolecular Science, University of Central Florida, PO Box, 162366, Orlando, FL 32816-2366, USA.


A developmental validation study was performed on three Y-STR multiplex systems, Multiplex III (MPIII), Multiplex IV (MPIV), and Multiplex V (MPV), to ascertain their potential applicability to forensic casework. MPIII contains eight Y-STRs, including DYS426, DYS435, DYS436, DYS441, DYS442, DYS446, DYS462, and Y-GATA-A10, and one InDel, YAP (DYS287). MPIV contains 21 Y-STR loci, including DYS443, DYS444, DYS445, DYS447, DYS448, DYS449, DYS452, DYS453, DYS454, DYS455, DYS456, DYS458, DYS463, DYS464, DYS468, DYS484, DYS522, DYS527, DYS531 DYS557, and DYS588. MPV contains 13 Y-STR loci, including DYS459, DYS476, DYS488, DYS513, DYS549, DYS561, DYS570, DYS575, DYS576, DYS590, DYS594, DYS598, and DYS607. Full genetic profiles were consistently obtained for all three multiplexes with 25-50 pg of male DNA. No significant amplification was observed with 1 mug of female DNA. Each multiplex permitted the determination of the number of male donors in male:male DNA admixtures. Species specificity studies demonstrated some cross-reactivity with some primate samples. Environmentally compromised blood samples produced full or partial profiles after exposure to various conditions for up to 1 year. Full profiles were recovered from simulated casework specimens including cigarette butts and postcoital cervicovaginal swabs. Population data were collected to determine individual loci gene diversity and multiplex discriminatory capacity.

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