Table 1.
The type and product of each secondary metabolite gene cluster were shown in the first row. Numbers are the total count of each secondary metabolite gene cluster. The length of the orange bar represents the total count of each secondary metabolite gene cluster.
Novel: Similarity ≤ 70% when compared to the most similar known cluster in the antiSMASH database.
Nrps: Nonribosomal peptide synthetase.
PKS: Polyketide synthase.
Clade 1/2/3: Clades identified in phylogeny and comparative genomics study (“Phylogeny and comparative genomics” section).