SM clusters in Strobilurus and Auriscalpium
Terpenes,
NRPS
(nonribosomal peptide synthetase)-like compounds, and siderophores are
among the main groups of SMs shared by fungi in Auriscalpium andStrobilurus and the putative genes coding for enzymes involved in
their syntheses are summarized in Table 3. Our analyses showed that
T1PKS
(type I polyketide synthases)-NRPS like and betalactone existed solely
in Auriscalpium , while T1PKS-terpene, strobilurin, T1PKS, and
indole alkaloids were only found in Strobilurus (Table 3). Our
results revealed that the average number of gene clusters for SMs inAuriscalpium fungi was fewer (average 18.33) than that inStrobilurus (average 21.25). As expected, each species ofStrobilurus harbours one SM clusters of strobilurin (Table 3).
Fungi in Auriscalpium contain very few gene clusters for
NRPS-like but abundant for terpenes, while fungi in Strobilurusare the opposite (Table 3). In summary, the number of genes predicted
for the synthesis of NRPS-like, T1PKS, strobilurin and indole alkaloids
in Strobilurus fungi is higher than those in Auriscalpiumtaxa.