Bacterial Cells Engineered with Synthetic Genetic Materials for Blind Testing of Random Mutagenesis

Area of Science:

• Synthetic biology
• Genomics
• Biotechnology

Background:

• Genetically modified organisms (GMOs) require continuous postmarket surveillance in complex environments.
• Existing methods for monitoring synthetic genetic materials can be complex and require direct sequence comparison.
• There is a need for efficient and accessible methods to assess mutagenesis in synthetic genomes.

Purpose of the Study:

• To introduce a novel blind mutation detection system for synthetic genomic materials.
• To develop a method for assessing mutagenesis without direct sequence comparison or extensive bioinformatics.
• To establish a framework for routine surveillance and management of GMOs and synthetic products.

Main Methods:

• Development of a novel-coded genomic material, Genome-Digest, embedded within essential genes.
• Utilizing a mathematical correlation between nucleotide sequence and codon order for mutation assessment.
• Application of the Genome-ShockWatch methodology for analyzing mixed and pooled genomic samples.
• Proof-of-concept trials using long-read sequencing data from a yogurt sample.

Main Results:

• The Genome-Digest system successfully detected mutations exceeding a predefined threshold in complex samples.
• The blind mutation test eliminated the need for reference sequences and extensive bioinformatic analysis.
• The system demonstrated capability in analyzing mixed genomic materials and pooled samples.
• Proof-of-concept trials confirmed the detection of mutations in synthetic genomic material within a food matrix.

Conclusions:

• The Genome-Digest system offers a robust and independent method for evaluating mutagenesis in synthetic genomic sequences.
• This technology provides a foundation for routine surveillance and management of GMOs and synthetic products.
• The Genome-ShockWatch methodology ensures the safety and efficacy of synthetic biological applications in diverse environments.