Cotton Variety ST 5122GLT Breeding for Trait Stability

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Solution Overview

Problem

Cotton breeding is challenging due to the unpredictability of phenotypic expression from genotype, making it difficult for breeders to reproduce the same variety using the same parents and methodology, resulting in unique and unpredictable plant characteristics with each breeding process.

Innovation Solution

The development of the cotton variety ST 5122GLT and its hybrid and essentially derived varieties through a breeding process involving selection, backcrossing, and genetic transformation, which allows for the preservation of desired traits and the production of seeds, plants, and textiles with consistent morphological and physiological characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If self-pollination and fertilization are used for cotton reproduction, then plant and variety characteristics are preserved, but it is difficult to obtain new varieties with desired traits

Engineering Contradiction:
Improvepreservation of plant characteristicsVSAvoidability to produce new varieties
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The breeding program segments the development process into distinct phases: maintaining pure lines through self-pollination, introducing variation through controlled cross-pollination, and selecting for desired traits. This segmentation allows simultaneous preservation of stable characteristics and generation of new varieties.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the genetic parameters by introducing controlled cross-pollination between selected parent plants, thereby introducing genetic variation while maintaining control over the breeding process to preserve desirable traits from parent lines.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If genetic transformation methods are used, then new traits can be introduced, but the complexity of the breeding process increases

Engineering Contradiction:
Improveintroduction of new traitsVSAvoidcomplexity of breeding process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent uses controlled cross-pollination as an intermediary method between traditional self-pollination and complex genetic transformation techniques. This intermediary approach introduces genetic variation and new traits through natural breeding processes, avoiding the complexity of laboratory-based genetic transformation while still achieving trait introduction.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If multiple breeding methods are applied, then desired traits can be achieved, but the time and resources required increase

Engineering Contradiction:
Improveachievement of desired traitsVSAvoidbreeding cycle duration
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The breeding program performs preliminary selection of parent plants based on desired traits before initiating cross-pollination. This preliminary action ensures that only plants with desirable characteristics are used as parents, reducing the time needed for subsequent selection cycles and increasing the efficiency of the breeding process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements systematic evaluation and selection of offspring based on observed traits, using feedback from phenotypic assessment to guide further breeding decisions. This feedback mechanism accelerates the achievement of desired traits by directing breeding efforts toward the most promising lineages.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11076548B2Cotton variety ST 5122GLT
Publication Date: 2021.08.03 COTTON SEED INT

AI summary

The cotton variety ST 5122GLT is disclosed. The invention relates to seeds, plants, plant cells, plant tissue, harvested products and cotton lint as well as to hybrid cotton plants and seeds obtained by repeatedly crossing plants of variety ST 5122GLT with other plants. The invention also relates to plants and varieties produced by the method of essential derivation from plants of ST 5122GLT and to plants of ST 5122GLT reproduced by vegetative methods, including but not limited to tissue culture of regenerable cells or tissue from ST 5122GLT.