Inbred Corn Line for Stable High-Yield Hybrid Seed Breeding
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Solution Overview
Problem
There is a need for developing stable, high-yielding corn hybrids with superior parental lines that exhibit desirable traits to maximize ear and kernel production, while also providing resistance to pests, diseases, and tolerance to environmental stresses.
Innovation Solution
The development of a novel inbred corn line, IV19307M1, which can be used to create hybrid seeds through self-pollination or cross-pollination, and can be genetically modified to incorporate traits such as male sterility, herbicide resistance, insect resistance, disease resistance, and stress tolerance, using methods like mutagenesis, TILLING, and genome editing techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional corn breeding methods are used to develop hybrids, then basic yield is achieved, but superior parental lines with enhanced resistance and tolerance traits are not obtained
Solution Approach 1:
The breeding program segments the development process into distinct phases: developing inbred lines with specific resistance/tolerance traits, then combining them in hybrid crosses. This allows selection of parental lines with optimized trait combinations before hybridization, resolving the contradiction between reliability and productivity.
Solution Approach 2:
The patent applies local quality by selecting parental inbred lines that possess specific localized traits (e.g., disease resistance in one parent, stress tolerance in another) and combining them through controlled crosses. This creates hybrids with superior overall performance while maintaining genetic stability.
2Reliability
If genetic modification techniques are applied to incorporate multiple traits, then resistance and tolerance are improved, but genetic stability may be compromised
Solution Approach 1:
The patent employs preliminary action by developing and stabilizing inbred parental lines with desired resistance and tolerance traits before hybridization. This ensures genetic stability is established at the parental level, allowing hybrids to inherit stable trait combinations without compromising genetic integrity.
Solution Approach 2:
The breeding program utilizes parameter changes by selecting and combining parental lines with specific genetic parameters (resistance levels, tolerance thresholds) to achieve optimal hybrid performance. This controlled manipulation of genetic parameters maintains stability while incorporating multiple desirable traits.
3Productivity
If multiple desirable traits are combined in parental lines, then hybrid vigor is enhanced, but the complexity of breeding programs increases
Solution Approach 1:
The breeding program segments trait incorporation into separate parental lines, each optimized for specific traits. This reduces the complexity of managing multiple traits simultaneously in a single line while still achieving hybrid vigor through combination, effectively resolving the contradiction between productivity and complexity.
Data Source
AI summary
Inbred corn line, designated IV19307M1, is disclosed. The disclosure relates to the seeds of inbred corn line IV19307M1, to the plants and plant parts of inbred corn line IV19307M1 and to methods for producing a corn plant, either inbred or hybrid, by crossing inbred corn line IV19307M1 with itself or another corn line. The disclosure also relates to products produced from the seeds, plants, or parts thereof, of inbred corn line IV19307M1 and/or of the hybrids produced using the inbred as a parent. The disclosure further relates to methods for producing a corn plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other corn lines derived from inbred corn line IV19307M1.