Hybrid Corn CH612435 Breeding via Segmentation and Preliminary Action
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Solution Overview
Problem
Current corn breeding techniques face challenges in developing uniform hybrid varieties with desirable traits such as high yield, disease resistance, and uniform germination due to genetic non-uniformity and unpredictability in cross-pollination, requiring the development of stable inbred plants and specific breeding methods.
Innovation Solution
The development of the hybrid corn variety CH612435, which includes genetic loci for traits like male sterility, herbicide resistance, and disease resistance, using cytoplasmic-male sterility and genetic transformation techniques to introduce desired traits, and tissue culture methods for regenerating plants with consistent physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to combine desirable traits from different plants, then genetic diversity and trait combination are improved, but genetic non-uniformity and performance unpredictability worsen
Solution Approach 1:
The patent applies preliminary action by developing homozygous inbred plants through multiple generations of self-pollination and selection before creating the hybrid cross. This preliminary inbreeding process ensures that the parent plants are genetically uniform and stable, so that when they are crossed, the resulting hybrid population achieves uniformity and predictable performance, thereby resolving the contradiction between trait combination capability and performance reliability
2Stability of the object's composition
If self-pollination is used to develop homozygous inbred plants, then genetic uniformity and breeding stability are improved, but the ability to combine diverse desirable traits from different genetic backgrounds is reduced
Solution Approach 1:
The patent applies segmentation by dividing the breeding process into distinct phases: first developing homozygous inbred lines through self-pollination to achieve genetic uniformity and stability, then performing controlled cross-pollination between different inbred lines to combine diverse desirable traits. This segmentation allows each phase to optimize for its specific goal, resolving the contradiction between genetic uniformity and trait diversity
3Adaptability or versatility
If traditional breeding methods are used to develop new varieties, then genetic diversity is maintained, but development time and labor intensity increase
Solution Approach 1:
The patent applies copying by using tissue culture techniques to produce multiple copies of selected plants and seeds rapidly, eliminating the need to wait for natural seed production and generation cycles. This allows accelerated propagation of promising lines and reduction of overall breeding cycle duration while maintaining genetic diversity through controlled crosses, resolving the contradiction between diversity maintenance and time efficiency
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH612435. The invention thus relates to the plants, seeds and tissue cultures of the variety CH612435, and to methods for producing a corn plant produced by crossing a corn plant of variety CH612435 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 CH612435.