CH010410 Hybrid Corn Seeds Through Controlled Cross-Pollination
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Solution Overview
Problem
Existing corn breeding methods struggle to develop hybrids with uniformity and stability, incorporating desirable traits such as yield, disease resistance, and drought tolerance, while maintaining genetic diversity and avoiding self-pollination.
Innovation Solution
The development of the hybrid corn variety CH010410, which includes cytoplasmic or nuclear factors for male sterility, genetic modifications for traits like herbicide resistance, and a method of controlled cross-pollination using emasculation and bagging techniques to produce uniform hybrid seeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If self-pollination is allowed in corn breeding, then genetic diversity is maintained, but uniformity and stability of hybrid traits cannot be achieved
Solution Approach 1:
The patent removes the capability of self-pollination by introducing male sterility factors (cytoplasmic or nuclear) that prevent the plant from producing functional pollen. This extraction of the self-pollination function ensures that only cross-pollination occurs, thereby achieving uniform hybrid traits while maintaining controlled genetic diversity through deliberate crossing programs
Solution Approach 2:
The patent uses male sterility factors as an intermediary mechanism to control pollination. These factors act as mediators that prevent self-pollination while allowing controlled cross-pollination between selected parent lines, thus resolving the contradiction between maintaining genetic diversity and achieving uniform hybrid traits
2Adaptability or versatility
If conventional breeding methods are used to develop hybrids, then various desirable traits can be combined, but uniformity and stability of the hybrid population are difficult to achieve
Solution Approach 1:
The patent performs preliminary action by developing and maintaining pure inbred parent lines through multiple generations of self-pollination and selection before the actual hybrid cross. This preliminary purification of parent lines ensures that when crossing occurs, the resulting hybrid population exhibits uniformity and stability while combining desirable traits from both parents
Solution Approach 2:
The patent extracts and eliminates genetic variability from the parent lines through extensive inbreeding and selection before hybridization. This removal of genetic variation in the parents ensures that all hybrid offspring receive identical genetic combinations, achieving uniformity while still combining desirable traits
3Reliability
If male sterility factors are introduced to prevent self-pollination, then genetic purity of hybrids is ensured, but device complexity of the breeding system increases
Solution Approach 1:
The patent employs self-service by utilizing inherent cytoplasmic or nuclear factors within the plant itself that automatically prevent self-pollination. The male sterility is an intrinsic property of the plant that requires no external intervention or complex mechanical systems to enforce, thus ensuring genetic purity while minimizing system complexity
Solution Approach 2:
The patent replaces complex mechanical or manual emasculation systems with biological mechanisms (cytoplasmic or nuclear male sterility factors). This substitution eliminates the need for labor-intensive manual removal of male organs or complex mechanical barriers, achieving genetic purity through natural biological processes
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH010410. The invention thus relates to the plants, seeds and tissue cultures of the variety CH010410, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010410 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 CH010410.