Table 1: PCR amplification reaction system of 17β-HSD gene

Table 2: Plasmid enzyme digestion system

Table 1

Table 2

Figure 1

Figure 2

Figure 3

Figure 1: Nucleotide sequence and amino acid sequence of 17β-HSD gene

Figure 2: Alignment of amino acid sequences of 17β-HSD protein between Babylonia areolata and its related species

Figure 3: Phylogenetic tree of 17β-HSD protein of Babylonia areolata and related species