Whole-Genome Sequences of Two Kenyan Aspergillus minisclerotigenes Strains

Area of Science:

• Mycology
• Genomics
• Food Safety

Background:

• Aflatoxins are toxic secondary metabolites produced by Aspergillus species.
• Aspergillus minisclerotigenes is a significant producer of aflatoxins, posing risks to food security.
• Maize is a staple crop frequently contaminated with aflatoxins, particularly in regions like Kenya.

Purpose of the Study:

• To perform whole-genome sequencing of two highly aflatoxigenic Aspergillus minisclerotigenes strains (MRI390 and MRI400).
• To generate high-quality genome assemblies for these strains.
• To provide genomic resources for studying aflatoxin biosynthesis and fungal adaptation.

Main Methods:

• Whole-genome sequencing utilizing both MiSeq (Illumina) and PacBio platforms.
• Bioinformatic analysis for genome assembly and annotation.
• Isolation of fungal strains from Kenyan maize kernels.

Main Results:

• Complete genome sequences and assemblies were generated for A. minisclerotigenes strains MRI390 and MRI400.
• Mitochondrial DNA sequences were included in the whole-genome sequencing.
• The genomic data provides insights into the genetic makeup of these aflatoxigenic fungi.

Conclusions:

• The generated genome sequences represent a valuable resource for future research on aflatoxin production.
• Understanding the genomics of A. minisclerotigenes can aid in developing strategies to control aflatoxin contamination in maize.
• This study contributes to the knowledge base for managing fungal pathogens affecting agricultural products.