Hybrid Corn CH898376 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 CH898376, which incorporates genetic modifications and cytoplasmic male sterility to prevent self-pollination, along with tissue culture methods for regenerating plants with specific traits like herbicide resistance and improved agronomic characteristics, enables the production of hybrid seeds with enhanced traits.
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 inducing male sterility through cytoplasmic factors or genetic modifications. This extraction of the male reproductive function prevents self-pollination while allowing controlled cross-pollination for hybrid seed production, thereby resolving the contradiction between maintaining genetic stability and improving hybrid seed production efficiency
Solution Approach 2:
The patent introduces cytoplasmic male sterility factors or genetic modifiers as intermediaries that control pollination behavior. These intermediaries act as mediators between the plant's genetic makeup and its pollination function, enabling controlled cross-pollination while maintaining genetic stability through predetermined sterility mechanisms
2Reliability
If multiple desirable traits are combined in hybrid varieties, then yield and disease resistance improve, but breeding complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing male sterile lines through cytoplasmic factors or genetic modifications before combining multiple desirable traits. This preliminary setup of sterility mechanisms simplifies subsequent breeding operations, as cross-pollination control is already in place, allowing breeders to focus on combining traits without adding pollination control complexity
Solution Approach 2:
The patent employs universal breeding systems using cytoplasmic male sterility or genetic modifiers that can be applied across different corn varieties and trait combinations. This universal approach allows the same sterility mechanism to work with multiple different trait stacks, reducing breeding complexity while maintaining disease resistance and yield improvements
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH898376. The invention thus relates to the plants, seeds and tissue cultures of the variety CH898376, and to methods for producing a corn plant produced by crossing a corn plant of variety CH898376 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 CH898376.