title: Development and validation of a universal primer pair for the simultaneous detection of eight animal species.
abstract: In the present study, we developed a novel simplex PCR assay for the simultaneous detection of eight animal species, including goat, sheep, deer, buffalo, cattle, yak, pig and camel. A unique pair of universal primers was designed to target mitochondrial DNA variable regions in the eight animal species, generating, 787, 763, 563, 512, 507, 491, 455 and 385bp long fragments for goat, sheep, deer, buffalo, cattle, yak, pig and camel, respectively. The assay showed no cross-reactivity with other common domestic animals, and was validated by sequencing and enzyme digestion. Detection limit for DNA samples from the eight animal species varied between 6 and 20pg in a 20μl PCR mixture. Interestingly, the newly developed method successfully identified 170 commercial meat products, and is simple, fast, sensitive, specific, and cost-effective. Therefore, it could be used for the detection of goat, sheep, deer, buffalo, cattle, yak, pig, and camel species in foodstuffs.
authors.affiliation: Zhoushan Institute for Food and Drug Inspection and Testing, Zhoushan 316021 PR China.
authors.forename: Chaobo
authors.initials: C
authors.lastname: Xue
authors.affiliation: Zhoushan Institute for Food and Drug Inspection and Testing, Zhoushan 316021 PR China.
authors.forename: Pingya
authors.initials: P
authors.lastname: Wang
authors.affiliation: College of Life Sciences, China Jiliang University, Hangzhou 310018 PR China.
authors.forename: Jin
authors.initials: J
authors.lastname: Zhao
authors.affiliation: College of Life Sciences, China Jiliang University, Hangzhou 310018 PR China.
authors.forename: Aichun
authors.initials: A
authors.lastname: Xu
authors.affiliation: College of Life Sciences, China Jiliang University, Hangzhou 310018 PR China. Electronic address: guanfengzgjl@163.com.
authors.forename: Feng
authors.initials: F
authors.lastname: Guan
mesh_terms: D000818:Animals; D017931:DNA Primers; D004272:DNA, Mitochondrial / Q000235:genetics; D005506:Food Contamination; D008461:Meat Products / Q000032:analysis*; D016133:Polymerase Chain Reaction / Q000379:methods*
chemical_list: D017931:DNA Primers; D004272:DNA, Mitochondrial
keywords: DNA detection; Food authentication; Meat authentication; Multiplex species detection; Species identification