Unique Gene Analysis
The protein sequences of each gene between the 15 species were used to identify orthologous genes by using all-to-all BASTP with an E-value threshold of 1e-5. All of genes were classified to five groups, which are single, multiple, other, unique and uncluster. As for G. przewalskii, the gene of unique and uncluster group is peculiar, which was carried out to do enrichment analysis about KEGG by clusterProfiler (v3.10.0) with p-value < 0.05.