Abstract
We report a pyrosequencing method for detecting a short amelogenin fragment to aid the gender identification. The PCR products (44/45 bp), including primers and target sequence (4/5 bp) consisting of three point mutations and one indel mutation, were sequenced by the pyrosequencing method. 100 randomly chosen DNA samples of healthy donors were analyzed with this method, and all of them were correctly typed. The sensitivity of the technique was 0.5 ng template DNA. No specific peak was found in any detected animals or organisms except for monkey. For blood samples that were left outside for 26 weeks and DNA degraded artificially by digesting with DNaseI, this method gave more accurate results than the conventional method. Moreover, four bone samples analyzed using the method gave clear pyrograph. This method is easy, quick, cheap and suitable for high-throughput analysis, especially for identifying the gender of highly-degraded DNA samples.
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