Hybrid Corn CH011058 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 hybrid seed production.
Innovation Solution
The development of the hybrid corn variety CH011058, which incorporates genetic modifications and cytoplasmic male sterility traits to prevent self-pollination, along with specific genetic loci conferring herbicide resistance, disease resistance, and other desirable characteristics, using advanced breeding methods and genetic transformation techniques like CRISPR-Cas systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional self-pollination breeding methods are used, then genetic stability is maintained, but hybrid seed production efficiency is limited due to self-pollination
Solution Approach 1:
The patent extracts and removes the self-pollination capability from the corn plant by introducing cytoplasmic male sterility genes that prevent pollen formation. This extraction of the self-pollination function allows for efficient hybrid seed production while maintaining genetic stability through controlled cross-pollination between sterile lines and maintainer lines.
Solution Approach 2:
The patent introduces maintainer lines as intermediary carriers that possess normal fertility but carry the sterile maintainer gene. These intermediaries enable the propagation of sterile lines without direct self-pollination, thereby maintaining genetic stability while facilitating efficient hybrid seed production through controlled crosses.
2Adaptability or versatility
If multiple desirable traits are combined in a single variety, then agronomic quality improves, but breeding complexity increases
Solution Approach 1:
The patent segments the breeding process into distinct components: sterile lines carrying specific desirable traits, maintainer lines for propagation, and hybrid combinations for final production. This segmentation allows multiple desirable traits to be combined systematically while managing breeding complexity through modular line development and standardized crossing protocols.
3Productivity
If cytoplasmic male sterility is introduced to prevent self-pollination, then hybrid seed production efficiency improves, but genetic modification complexity increases
Solution Approach 1:
The patent employs self-service mechanisms where the cytoplasmic male sterility system automatically prevents self-pollination without requiring external intervention. The sterile lines self-regulate their reproductive capability through cytoplasmic genes that inhibit pollen formation, while maintainer lines automatically restore fertility when crossed with sterile lines, simplifying the overall genetic modification management.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011058. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011058, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011058 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 CH011058.