Hybrid Corn CH011155 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 breeding processes.
Innovation Solution
The development of the hybrid corn variety CH011155, 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 techniques like genome editing and backcrossing to introduce desired traits while maintaining morphological and physiological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop hybrid corn varieties, then genetic diversity and trait combination are improved, but self-pollination occurs which reduces breeding efficiency and uniformity
Solution Approach 1:
The patent applies preliminary anti-action by introducing cytoplasmic male sterility (CMS) traits into the corn variety before breeding operations. This genetic modification prevents self-pollination at the physiological level, ensuring that all pollination events are cross-pollination. The CMS trait acts as a pre-established barrier against the harmful self-pollination that would otherwise occur in traditional breeding, thereby resolving the contradiction between maintaining genetic diversity and ensuring breeding efficiency.
2Productivity
If cytoplasmic male sterility is introduced to prevent self-pollination, then breeding efficiency and uniformity are improved, but genetic stability may be compromised
Solution Approach 1:
The patent applies local quality by introducing the cytoplasmic male sterility trait specifically into the cytoplasmic genome rather than affecting the entire nuclear genome. This localized genetic modification affects only the male fertility trait while leaving other genetic characteristics stable. The CMS trait is confined to specific cytoplasmic genes, allowing the rest of the genetic composition to remain unchanged and stable, thus resolving the contradiction between breeding efficiency and genetic stability.
3Adaptability or versatility
If multiple desirable traits are combined in a single hybrid variety, then agronomic quality and yield are improved, but the complexity of breeding programs increases
Solution Approach 1:
The patent applies merging by combining multiple desirable traits including cytoplasmic male sterility, herbicide resistance, and improved agronomic characteristics into a single integrated hybrid variety (CH011155). The breeding program merges these traits through systematic cross-breeding of parent lines that each contribute specific traits, consolidating them into one unified variety. This merging approach simplifies the overall breeding program by creating a single target variety rather than managing multiple separate breeding lines.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH011155. The invention thus relates to the plants, seeds and tissue cultures of the variety CH011155, and to methods for producing a corn plant produced by crossing a corn plant of variety CH011155 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 CH011155.