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  • Title: Amelogenin cross-amplification in the family Bovidae and its application for sex determination.
    Author: Weikard R, Pitra C, Kühn C.
    Journal: Mol Reprod Dev; 2006 Oct; 73(10):1333-7. PubMed ID: 16865718.
    Abstract:
    Sex-specific sequence variability of the amelogenin gene had been observed in a variety of mammalian species. In our study, the suitability of the amelogenin gene for sex determination in different species of the family Bovidae was examined. Based on a sequence insertion/deletion characteristic for X- and Y-specific amelogenin (AMELX and AMELY), PCR amplification on male and female genomic DNA from domestic and wild bovine species, sheep and goat, consistently displayed a sex-specific pattern. Thus, the amelogenin amplification by PCR proved to be a reliable method for sex determination not only in domestic and wild species of the tribe Bovini, but also in the related species sheep and goat. Sex determination using the amelogenin-based assay can be performed with at least 40 pg of genomic DNA. The assay enables the investigation of small amounts of DNA from meat, hair, bones, and embryo biopsies to identify species and sex for a number of applications in animal production, forensics, population research, and monitoring within the family Bovidae. Sequence comparison of the amplified amelogenin gene region specific for male and female animals from domestic and wild bovide species revealed further sequence variations within and between sexes as well as between species. Sequence variations in the AMELX gene can be applied to discriminate Bos and Bison individuals from other bovine species, and also from sheep and goat.
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