tingly, analysis from the position involving the core genes of ESCs and melanin gene clusters, we found that the 3 genes are all situated in Contig00003. This result also cast some doubt on whether or not PKS P2X3 Receptor drug synthesis pathways from ESC and melanin are interrelated or competing. Pathogens employ complicated mechanisms to break through the defenses of plants, such as toxins, enzymes, and other pathogenic variables to assist invasion and colonization. Analysis of your CAZy and PHI databases revealed that, in addition to ESCs, enzymes, effectors, and certain transcription aspects may be involved within the pathogenic process. Elevated virulence aspects (3 ) that lead to enhanced pathogenicity consist of O-methylsterigmatocystin oxidoreductase, AK-toxin biosynthetic gene 7 (AKT7) and bZIP transcription aspect MeaB. EVM0005728, EVM0001699 and EVM0004784 are associated to AKT7, which encodes a cytochrome P450 monooxygenase in Alternaria alternata and may limit the host-selective toxin AK-toxin production [57]. EVM0002472 is endowed with a standard leucine zipper (bZIP) domain equivalent towards the MeaB transcription factor in Fusarium oxysporum [58], which activates a conserved nitrogen responsive pathway to control the virulence of plant pathogenic fungi (S5 Table). In conclusion, we reported the whole-genome sequence of E. arachidis. Evaluation of its assembly and annotation permitted the identification on the presumptive PKS gene clusters. Based on our results, we hypothesize that ESCB1 maybe the core gene of the biosynthesis ofPLOS One | doi.org/10.1371/journal.pone.0261487 December 16,11 /PLOS ONEPotential pathogenic mechanism plus the biosynthesis pathway of elsinochrome toxinESC. Additionally, pathogenic elements which includes CAZymes and effectors may help E. PARP1 web arachidis to circumvent the defense mechanisms of peanuts. Our function lays the foundation of future research aimed at elucidating the detailed pathogenic mechanisms of E. arachidis.ConclusionsIn conclusion, this is the first report on the high-quality genome of E. arachidis by PacBio RS II. The basic data on the sequence, gene family members and metabolic gene cluster of E. arachidis were clarified. Via further analysis in the crucial genes in various PKS gene clusters, the expression of ESCB1 (EVM0003759) under light and dark situation was initially determined to take part in the ESC biosynthetic pathway, as well as the flanking sequences of this gene cluster had been annotation, like main facilitator superfamily transporter, cytochrome P450, monooxygenase and O-methyltransferase. As well as ESC toxins, genes associated to mycotoxin biosynthesis which include melanin are also noted. This info gives new ideas for further exploration of the pathogenic mechanism of E. arachidis.Supporting informationS1 Fig. GO, KOG and KEGG annotation of E. arachidis. (TIF) S2 Fig. Collinear analysis and evolutionary analysis of E. arachidis. (A) A phylogenetic tree constructed the evolutionary relationships of E. arachidis and also other fungi. (B) Collinear analysis. (TIF) S3 Fig. Gene clusters in E. arachidis. (TIF) S4 Fig. PKS, NRPS and NRPS-PKS hybrid in unique genome. (TIF) S1 Table. Repetitive sequence in E. arachidis. (DOC) S2 Table. ABC transporter and big facilitator superfamily in E. arachidis. (XLSX) S3 Table. Cytochrome P450 in E. arachidis. (XLSX) S4 Table. The loss of pathogenicity and lowered virulence genes in E. arachidis. (DOCX) S5 Table. Enhanced virulence genes in E. arachidis. (DOCX) S6 Table. CAZyme_family in E. arach
