Hybrid Corn CH010430 Male Sterility Genetics
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Solution Overview
Problem
The challenge in corn breeding is to develop hybrid varieties that combine desirable traits such as high yield, disease resistance, and uniformity, while maintaining genetic stability and preventing self-pollination.
Innovation Solution
The development of the hybrid corn variety CH010430, which includes a cytoplasmic or nuclear factor for male sterility or self-incompatibility, along with genetic modifications that confer traits like herbicide resistance, insect resistance, and disease resistance, is achieved through backcrossing and genetic transformation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If self-pollination is allowed in corn breeding, then genetic diversity is improved, but genetic stability and uniformity of hybrid progeny deteriorate
Solution Approach 1:
The patent extracts and removes the male reproductive capability from the plant by introducing male sterility genes (cms1, cms3, or gms1) into the cytoplasm or nucleus. This extraction prevents self-pollination entirely, ensuring genetic stability and uniformity of hybrid progeny while the controlled cross-pollination maintains necessary genetic diversity through deliberate breeding programs
2Productivity
If multiple desirable traits are combined in a single hybrid variety, then productivity and agronomic quality are improved, but device complexity and breeding program complexity increase
Solution Approach 1:
The patent merges multiple desirable traits into a single hybrid variety CH010430 by combining specific inbred parents (CV934113 and CV864954) that contribute different advantageous characteristics. This merging achieves high yield, disease resistance, and uniformity in one variety, while the standardized male sterility system simplifies the breeding program by eliminating the need for manual emasculation and ensuring consistent hybrid production
Solution Approach 2:
The patent implements a universal male sterility system using cytoplasmic (cms1, cms3) or nuclear (gms1) factors that function across multiple breeding programs and hybrid varieties. This multi-functional approach allows the same sterility mechanism to prevent self-pollination, facilitate hybrid seed production, and maintain genetic purity simultaneously, reducing overall breeding program complexity
3Stability of the object's composition
If male sterility factors are introduced to prevent self-pollination, then genetic stability is improved, but ease of operation and breeding process simplicity deteriorate
Solution Approach 1:
The patent implements self-service by allowing the plant's own cytoplasmic or nuclear factors to automatically enforce male sterility and prevent self-pollination. The plant self-regulates its reproductive capability through intrinsic genetic mechanisms (cms1, cms3, gms1), eliminating the need for external人工 emasculation or complex manual intervention, thereby maintaining genetic stability while simplifying operational procedures
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH010430. The invention thus relates to the plants, seeds and tissue cultures of the variety CH010430, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010430 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 CH010430.