Journal
MEAT SCIENCE
Volume 68, Issue 3, Pages 431-438Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2004.04.010
Keywords
TaqMan; real-time PCR; meat species; cytochrome b gene
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Species-specific real-time PCR (TaqMan) assays were developed for detection of beef, pork, lamb, chicken and turkey. Assays were developed around small (amplicons <150 base pairs) regions of the mitochondrial cytochrome b (cytb) gene. Speciation was achieved using species-specific primers. For detection purposes, two TaqMan probes were developed; the first was specific to the mammalian species (beef, lamb and pork), the second to the poultry species (chicken and turkey). Normal end-point TaqMan PCR conditions were applied; however, PCR was limited to 30 cycles. Applying the assays to DNA extracts from raw meat admixtures, it was possible to detect each species when spiked in any other species at a 0.5% level. The absolute level of detection, for each species, was not determined; however, experimentally determined limits for beef, lamb and turkey were below 0.1%. (C) 2004 Elsevier Ltd. All rights reserved.
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