CH010406 Hybrid Corn Breeding for Stable Multi-Trait Uniformity
Solution Overview
Problem
Existing corn breeding techniques struggle to combine multiple desirable traits such as yield, disease resistance, and uniformity in a single hybrid variety, necessitating the development of stable inbred plants with specific characteristics.
Innovation Solution
The development of the hybrid corn variety CH010406, which incorporates genetic modifications and cytoplasmic traits for male sterility, herbicide resistance, and disease resistance, along with methods for crossing and tissue culture to ensure uniformity and desired characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple desirable traits are combined in a single hybrid variety through traditional breeding, then the complexity of breeding programs increases, but the ability to achieve uniformity and stability of traits decreases
Solution Approach 1:
The breeding program is segmented into distinct phases: developing homozygous inbred parent lines with specific traits, then crossing them to produce uniform hybrid progeny. This segmentation allows each parent line to be optimized for particular traits while ensuring the hybrid combines them uniformly
Solution Approach 2:
Homozygous inbred parent plants are developed and stabilized before the hybrid crossing stage. This preliminary action ensures that each parent contributes consistent, predictable genetic material to the hybrid, thereby ensuring uniformity and stability of desired traits in the final variety
2Stability of the object's composition
If self-pollination is used to develop homozygous inbred plants, then genetic uniformity is achieved, but genetic diversity is reduced
Solution Approach 1:
The breeding process is divided into two distinct segments: first, self-pollination is used to create genetically uniform homozygous inbred lines; second, cross-pollination between different inbred lines introduces genetic diversity. This segmentation allows both genetic uniformity (within lines) and genetic diversity (between lines) to be achieved at appropriate stages
Solution Approach 2:
Different pollination methods are applied to different generations: self-pollination is used locally within each parent line development to achieve homozygosity, while cross-pollination is used locally at the hybridization stage to combine diverse genetic material. Each method is applied where it is most beneficial
3Adaptability or versatility
If cross-pollination is used to produce hybrid plants, then genetic diversity and trait combination are improved, but uniformity of the hybrid population decreases
Solution Approach 1:
The parent inbred lines are pre-developed and stabilized through multiple generations of self-pollination and selection before crossing. This preliminary action ensures that each parent contributes a fixed, homogeneous genetic complement to the hybrid cross, resulting in uniform F1 hybrid progeny despite the cross-pollination process
Solution Approach 2:
The invention uses homozygous inbred parent lines that are genetically homogeneous within themselves. When these homogeneous parents are crossed, the resulting hybrid population is uniform because both parents contribute identical alleles at each locus, ensuring consistent phenotype across all hybrid offspring
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH010406. The invention thus relates to the plants, seeds and tissue cultures of the variety CH010406, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010406 with itself or with another corn plant, such as a plant of another variety. The invention further relates to genetic complements of plants of variety CH010406.