KL20745C1 Inbred Corn Line for Stable, High-Yielding Hybrids

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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 for maximizing 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, KL20745C1, 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 tolerance to water stress, among others, using methods like mutagenesis, TILLING, and genome editing techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional breeding methods are used to develop corn hybrids, then basic yield potential can be achieved, but superior parental lines with enhanced resistance and tolerance traits cannot be obtained

Engineering Contradiction:
Improveresistance and tolerance traitsVSAvoidyield potential
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies parameter changes by modifying the genetic composition of corn parental lines through genome editing techniques. Specific genetic parameters are altered to introduce enhanced resistance and tolerance traits while maintaining yield potential, thereby resolving the contradiction between obtaining superior resistance traits and achieving high yield.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If traditional inbred lines are used as parental lines, then hybrid production can proceed, but the hybrids lack enhanced agronomic traits and adaptability

Engineering Contradiction:
Improveagronomic adaptabilityVSAvoidbreeding program complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by pre-modifying parental inbred lines with desired agronomic traits through genome editing before hybridization. This advance preparation ensures that the resulting hybrids inherit enhanced adaptability without requiring complex post-hybridization selection programs, thereby reducing breeding program complexity while improving adaptability.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If extensive genetic modification is applied to incorporate multiple traits, then enhanced resistance and tolerance are achieved, but the stability and uniformity of the inbred line may be compromised

Engineering Contradiction:
Improveresistance and toleranceVSAvoidinbred line stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by implementing targeted genome editing at specific loci rather than widespread genetic modification. This approach introduces desired resistance and tolerance traits at precise locations in the genome while maintaining the overall stability and uniformity of the inbred line, thereby resolving the contradiction between enhancing traits and preserving line stability.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250301983A1Inbred corn line KL20745c1
Publication Date: 2025.10.02 KWS SAAT SE & CO KGAA

AI summary

Inbred corn line, designated KL20745C1, is disclosed. The disclosure relates to the seeds of inbred corn line KL20745C1, to the plants and plant parts of inbred corn line KL20745C1 and to methods for producing a corn plant, either inbred or hybrid, by crossing inbred corn line KL20745C1 with itself or another corn line. The disclosure also relates to products produced from the seeds, plants, or parts thereof, of inbred corn line KL20745C1 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 KL20745C1.