Mutant Plant Preparation Reducing Coding Mutations

The mutagenesis process is divided into multiple sequential treatment stages rather than a single high-dose treatment. Plants receive incremental mutagenesis doses across generations (M0, M1, M2, M3), allowing genetic variation to accumulate gradually while maintaining plant viability at each stage. This segmented approach prevents overwhelming the plant's DNA repair mechanisms and reduces the accumulation of lethal mutations.

The patent implements preliminary selection and screening steps before advancing to the next mutagenesis generation. Plants are screened for desired traits and overall health status before being subjected to further mutagenesis treatment. This preliminary action ensures that only viable, healthy plants with beneficial mutations progress to subsequent treatment rounds, preventing the propagation of plants with excessive detrimental mutations.

The patent implements continuous feedback loops where each generation of mutagenized plants is phenotypically screened and genotypically characterized before proceeding to the next generation. Desired traits are identified and selected at each stage, providing feedback that guides subsequent mutagenesis treatment. This feedback mechanism ensures that genetic diversity increases while maintaining a manageable level of background mutations by actively selecting against plants with excessive non-beneficial mutations.

The patent applies targeted mutagenesis strategies focusing on specific genomic regions or genes of interest rather than uniform whole-genome mutagenesis. By concentrating mutagenesis effort on locally relevant genetic targets, the method increases genetic diversity in functional regions while minimizing unnecessary background mutations in non-critical genomic areas, thereby improving the signal-to-noise ratio for trait identification.