Hybrid Corn CH011192 Cytoplasmic Male Sterility Breeding
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Solution Overview
Problem
Current corn breeding techniques face challenges in developing hybrid varieties that combine desirable traits such as high yield, disease resistance, and uniformity, while maintaining genetic stability and avoiding self-pollination, which limits the efficiency of trait introduction and hybrid seed production.
Innovation Solution
The development of the hybrid corn variety CH011192, which incorporates genetic modifications and cytoplasmic male sterility traits, allows for controlled cross-pollination and introduces heritable traits like herbicide resistance and disease resistance through genetic locus modifications, using techniques like genome editing and transgenic integration, ensuring stable and uniform hybrid production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional self-pollination breeding methods are used, then genetic uniformity is maintained, but hybrid vigor and trait diversity are limited
Solution Approach 1:
The breeding program segments the population into distinct inbred lines through repeated self-pollination and selection, creating genetically uniform parental lines that can be systematically crossed to generate hybrid progeny with combined traits from different segments
Solution Approach 2:
The patent combines genetically uniform inbred lines through controlled cross-pollination to produce hybrid corn that merges desirable traits from both parental lines, achieving both genetic uniformity within the hybrid population and trait diversity through parental combination
2Adaptability or versatility
If cross-pollination is used to develop hybrids, then trait diversity and hybrid vigor are improved, but genetic stability and uniformity are reduced
Solution Approach 1:
The patent performs preliminary self-pollination and selection to create genetically stable inbred lines before cross-pollination, ensuring that the parental lines have uniform genetics that will produce uniform hybrid progeny, thus maintaining genetic stability while achieving trait diversity
Solution Approach 2:
The patent creates multiple copies of the same hybrid genotype by crossing identical inbred parental lines, producing a uniform population of hybrid plants that replicate the desired trait combination across the entire population
3Productivity
If male sterility systems are implemented to prevent self-pollination, then hybrid seed production efficiency is improved, but system complexity increases
Solution Approach 1:
The patent employs cytoplasmic male sterility where the plant's own cytoplasmic genes control pollen production, allowing the female parent to automatically prevent self-pollination without external intervention, thus improving hybrid seed production efficiency while managing complexity through biological self-regulation
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011192. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011192, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011192 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 CH011192.