Hybrid Corn Variety Using Male Sterility for Trait Stacking
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Solution Overview
Problem
Existing corn breeding techniques struggle to develop hybrids with uniformity and desirable traits such as yield, disease resistance, and drought tolerance, while maintaining genetic stability and efficiency in pollination processes.
Innovation Solution
The development of the hybrid corn variety CH010480, which incorporates cytoplasmic or nuclear factors for male sterility, genetic modifications for traits like herbicide resistance and disease resistance, and a method for controlled cross-pollination using emasculation and bagging techniques to ensure hybrid purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to develop hybrid corn varieties, then uniformity and basic yield are achieved, but desirable traits such as disease resistance, herbicide resistance, and male sterility cannot be effectively combined
Solution Approach 1:
The patent combines multiple desirable traits (disease resistance, herbicide resistance, male sterility) into a single hybrid corn variety through integrated breeding programs. This merging of traits allows the variety to simultaneously possess resistance to multiple stresses and improved agronomic characteristics, resolving the contradiction between trait versatility and breeding complexity by achieving consolidation of multiple benefits in one variety.
Solution Approach 2:
The hybrid corn variety CH010480 is designed to perform multiple functions: it provides disease resistance, herbicide resistance, male sterility, and improved yield simultaneously. This multi-functionality allows a single variety to address multiple agricultural challenges, effectively resolving the contradiction between adaptability and breeding complexity.
2Productivity
If multiple desirable traits are combined in a single hybrid variety, then agricultural productivity and resistance are improved, but the breeding process becomes more complex and time-consuming
Solution Approach 1:
The patent employs preliminary action through the use of cytoplasmic male sterility systems and pre-selected inbred lines that carry desired traits. By preparing and selecting parental lines in advance with specific resistance genes and agronomic characteristics, the breeding process can accelerate the development of multi-trait hybrids, reducing the overall time required compared to traditional sequential breeding approaches.
3Reliability
If cytoplasmic or nuclear factors are introduced to confer male sterility, then self-pollination is prevented and hybrid seed production is improved, but genetic complexity increases
Solution Approach 1:
The patent uses cytoplasmic male sterility factors as intermediaries to prevent self-pollination and ensure hybrid seed production. These cytoplasmic factors act as mediators that confer male sterility without requiring complex nuclear gene interactions, thereby achieving reliable male sterility while managing genetic complexity through the use of cytoplasmic rather than purely nuclear mechanisms.
Data Source
AI summary
According to the disclosure, there is provided seed and plants of the hybrid corn variety designated CH010480. The disclosure thus relates to the plants, seeds, and tissue cultures of the variety CH010480, and to methods for producing a corn plant produced by crossing a corn plant of variety CH010480 with itself or with another corn plant, such as a plant of another variety. The disclosure further relates to genetic complements of plants of variety CH010480.