Figure 2.

Comparison of the OTA biosynthetic cluster in A. steynii (above) with the corresponding regions found in A. persii and A. sclerotiorum. The schemes are drawn at scale, except in the cases of black regions marked by an asterisk (*), which are slightly longer than represented. The length of the complete region in fungal genomes is indicated below the corresponding species name. Gray regions correspond to sequences that share high identity with the OTA biosynthetic cluster and are located under the corresponding homologous region in A. steynii. Black regions show no identity with any sequence available in databases. The striped square represents an inverted region. The percentages below the boxes indicate the region’s identity with A. steynii. HAL = halogenase-, BZIP = bZIP transcription factor-, P450 = cytochrome P450 monooxygenase-, NRPS = non-ribosomal peptide synthetase-, and PKS = polyketide synthase-encoding genes.