Wheat Variety A020167A1 Breeding via Preliminary Mutation

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Solution Overview

Problem

Current wheat breeding methods face challenges in developing stable, high-yielding wheat varieties with improved grain quality and resistance to diseases and environmental stresses, as they often require extensive generations of self-pollination and selection, which can be time-consuming and inefficient.

Innovation Solution

The development of the wheat variety A020167A1, which is the result of a modified pedigree selection method combining desirable traits such as high seed yield, disease resistance, and improved grain quality, achieved through careful breeding and selection of homozygous lines, and potentially enhanced through genetic transformation and mutagenesis to introduce specific traits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional wheat breeding methods using extensive self-pollination and selection are used, then stable homozygous lines can be obtained, but the breeding process becomes time-consuming and inefficient

Engineering Contradiction:
Improvestability of homozygous linesVSAvoidbreeding process duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by using mutation breeding to pre-create genetic variation and homozygous lines before the main breeding process. This allows the selection of stable lines with desired traits (such as stripe rust resistance and lodging resistance) to occur earlier in the breeding pipeline, reducing the time required for subsequent generations of self-pollination and selection while maintaining genetic stability.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple generations of self-pollination and selection are performed to develop stable varieties, then desirable traits can be combined, but the complexity and resource requirements of the breeding program increase

Engineering Contradiction:
Improvecombination of desirable traitsVSAvoidbreeding program complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent reduces breeding program complexity by performing preliminary mutation breeding and selection to pre-establish homozygous lines with specific desirable traits (such as disease resistance and lodging resistance). This preliminary preparation allows for more efficient combination of traits in subsequent crossing steps, reducing the number of generations and selection cycles needed in the main breeding program.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses mutation breeding to create copies of wheat lines with modified genetic characteristics (such as enhanced resistance traits). These mutated lines serve as pre-selected parental material that can be efficiently combined with other lines, reducing the need for extensive multi-generational selection and simplifying the overall breeding program structure.

Inventive Principle:
Principle #26Copying

3Reliability

If traditional breeding methods are used to improve grain quality and yield, then stable varieties can be developed, but the process requires extensive generations of selection which reduces productivity

Engineering Contradiction:
Improvegrain quality stabilityVSAvoidbreeding output per unit time
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies preliminary action by using mutation breeding to pre-create genetically stable lines with improved grain quality traits and resistance characteristics. This preliminary genetic preparation allows breeders to work with pre-optimized parental lines, significantly reducing the number of selection generations needed to achieve stable, high-quality varieties and thereby increasing breeding productivity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses mutation breeding to induce parameter changes in the genetic material, creating lines with enhanced traits (such as improved grain quality, disease resistance, and lodging resistance). These parameter-changed lines serve as superior parental material that accelerates the breeding process, allowing for faster development of stable varieties with improved characteristics and increasing overall breeding output.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9089104B1Wheat variety A020167A1
Publication Date: 2015.07.28 PIONEER HI BREED INTERNATIONAL INC

AI summary

A wheat variety designated A020167A1, the plants and seeds of wheat variety A020167A1, methods for producing a wheat plant produced by crossing the variety A020167A1 with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety A020167A1 with another wheat line or plant, and the creation of variants by mutagenesis or transformation of variety A020167A1. This invention also relates to methods for producing other wheat varieties or breeding lines derived from wheat variety A020167A1 and to wheat varieties or breeding lines produced by those methods.