Indel molecular marker of ultrasonic mutagenesis salmonella typhimurium hisD gene and use thereof

The present disclosure provides an insertion and deletion (InDel) molecular marker of a hisD gene of ultrasonically-mutagenized Salmonella typhimurium (S. typhimurium) and use thereof, and belongs to the field of molecular biology. In the present disclosure, through ultrasonic mutagenesis to S. typhimurium and sequencing, it is found that all InDel mutations occur in a core mutation region of the hisD gene. Therefore, the core mutation region is used as the InDel molecular marker to determine an insertion or a deletion of a gene reverse mutation, and the InDel molecular marker can also be used to analyze a relationship between a sequence of the hisD gene and a function of a protein encoded thereby.