A multiplex PCR method based on nuclear and cytoplasmic inheritance to identify the horse and donkey-derived components of Asini Colla Corii and the hide

Abstract

To identify the original components of Asini Colla Corii and its raw material hides provides a guarantee for authenticity of Asini Colla Corii. It is urgent for Asini Colla Corii production enterprises and market supervision departments to develop effective identification methods of Asini Colla Corii and hides derived from horses, donkeys, mules and hinnies. This study screened species-specific DNA sequences of nuclear and mitochondrial genomes as detection targets, designed horse and donkey specific primers and established multiple PCR identification methods for identifying the animal hides (including the horse, donkey, mule and hinny) and Asini Colla Corii containing horse-derived and donkey-derived components. Our method can identify the horse, donkey, mule and hinny hides and horse, donkey-derived components of Asini Colla Corii with high species specificity (no crossed amplification was observed ). The limit of detection was 0.2 ng DNA. The method developed in this study provides technical support for Asini Colla Corii production enterprises and market supervision departments.