Fig. 2

Phylogenetic tree of species isolated through FECM and FiChips, based on full-length ITS sequences. a Phylogenetic tree of fungi cultured from the ZJ-1, ZJ-2, and ZJ-3 mangrove sediment samples and correlation analysis of cultured fungi during FECM. b Phylogenetic tree of fungi cultured from the SZ-1 and SZ-2 mangrove sediment samples and correlation analysis of cultured fungi by in situ cultivation. Major phylum names are indicated and marked in different colors. Red branches on the trees indicate that the species was isolated after FECM or from FiChips, while black tree branches indicate that the species was isolated by directly culturing on five media. Candidate novel species (blue stars indicate ITS sequence similarity between 94 and 98% comparing to the NCBI database, green stars indicate similarity between 91 and 94%, and red stars indicate similarity below 91%) are indicated by colored stars outside the heatmap. The bar chart and the heatmap indicate the strains number of that species. In addition, detailed information of each species is shown in Additional file 2: Table S1, Table S2, Table S3, and Table S4