Hybrid Corn CH101192 Cytoplasmic Male Sterility for Seed Production
Find Innovative SolutionsGenerate Solutions
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 CH101192, which incorporates genetic modifications and cytoplasmic male sterility to prevent self-pollination, along with specific traits like herbicide resistance and disease resistance, achieved through genetic transformation and backcrossing techniques, allowing for controlled cross-pollination and stable hybrid seed production.
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 inability to prevent self-pollination
Solution Approach 1:
The patent applies preliminary anti-action by introducing cytoplasmic male sterility factors (such as CMS-T or CMS-Mas) into the parental lines before breeding. This prevents self-pollination in advance by rendering the male reproductive organs non-functional, thereby ensuring that only cross-pollination can occur. The sterile cytoplasm is maintained through specific nuclear genetic backgrounds that prevent restoration of fertility, thus guaranteeing hybrid seed production while maintaining genetic stability through controlled crossing.
2Ease of operation
If cytoplasmic male sterility is introduced to prevent self-pollination, then controlled cross-pollination is achieved, but device complexity increases due to genetic modification requirements
Solution Approach 1:
The patent employs self-service by utilizing the plant's own cytoplasmic genetic system to automatically prevent self-pollination. The CMS cytoplasm inherently causes male sterility without requiring external intervention or complex mechanical devices. The genetic system self-regulates by preventing pollen development in sterile lines, thereby enabling controlled cross-pollination through natural biological mechanisms rather than artificial complexity.
3Adaptability or versatility
If multiple desirable traits are combined in a single hybrid variety, then agronomic quality and yield are improved, but breeding program complexity increases
Solution Approach 1:
The patent applies merging by combining multiple desirable traits into single parental lines through systematic breeding programs. Traits such as disease resistance (e.g., northern corn leaf blight resistance), herbicide tolerance, and high yield potential are integrated into the CMS-based parental lines. This consolidation allows the final hybrid to inherit multiple beneficial traits simultaneously, achieving superior agronomic quality while managing breeding complexity through structured trait pyramiding.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH101192. The invention thus relates to the plants, seeds and tissue cultures of the variety CH101192, and to methods for producing a corn plant produced by crossing a corn plant of variety CH101192 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 CH101192.