Gene Drive Organism Release for Population Control

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Solution Overview

Problem

Current methods for releasing engineered organisms into the wild are limited, particularly for non-insect species, as they often rely on sterile or autosomal female-lethal releases that impair fitness due to inbreeding and loss of genetic diversity, and do not provide effective options for causing direct harm or targeting specific populations.

Innovation Solution

A method involving the preselection of heritable traits and introducing engineered organisms with these traits into a target population by impregnating captive females with specific genetic material, which are then released to alter the genetic characteristics of the population, using techniques such as gene-drive systems and RNA-guided nucleases to disrupt X-chromosome activity, thereby introducing traits like coat color or sterility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sterile or autosomal female-lethal releases are used for insects, then population control is achieved, but fitness is impaired due to inbreeding and loss of genetic diversity

Engineering Contradiction:
Improvepopulation control effectivenessVSAvoidgenetic diversity
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent applies preliminary action by pre-selecting heritable traits in engineered organisms before release, and by impregnating captive females with specific genetic material prior to release. This allows the desired genetic characteristics to be established in advance, eliminating the need for continuous sterile releases and preserving genetic diversity while maintaining population control effectiveness.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses copying by introducing preselected heritable traits through engineered organisms that replicate and transmit these traits to subsequent generations. The genetic material is copied and propagated naturally through reproduction, replacing the need for repeated sterile releases and maintaining genetic diversity through natural breeding processes.

Inventive Principle:
Principle #26Copying

2Productivity

If mass rearing techniques are used for insect production, then sufficient numbers for release are obtained, but fitness is impaired due to inbreeding and loss of genetic diversity

Engineering Contradiction:
Improvenumber of organisms for releaseVSAvoidgenetic diversity
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The patent applies preliminary action by pre-selecting heritable traits and impregnating captive females with specific genetic material before release. This ensures that the desired genetic characteristics are established in advance, eliminating the need for continuous mass rearing and sterile releases, thereby preserving genetic diversity while maintaining sufficient population numbers.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses copying by introducing preselected heritable traits through engineered organisms that replicate and transmit these traits to subsequent generations. The genetic material is copied and propagated naturally through reproduction, replacing the need for repeated mass rearing operations and maintaining genetic diversity through natural breeding processes.

Inventive Principle:
Principle #26Copying

3Adaptability or versatility

If current insect-based strategies are used, then population control is achieved, but the methods cannot be applied to non-insect organisms

Engineering Contradiction:
Improveapplicability to different speciesVSAvoidpopulation control effectiveness
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies universality by developing a method that can be applied across multiple species including insects, mammals, and other organisms. The core approach of pre-selecting heritable traits and introducing them through engineered organisms impregnated with specific genetic material is species-agnostic, allowing the same methodology to achieve population control and genetic modification across diverse biological systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent applies preliminary action by pre-selecting heritable traits and impregnating captive females with specific genetic material before release. This allows the desired genetic characteristics to be established in advance, eliminating the need for species-specific sterile release protocols and enabling effective population control across diverse species including non-insects.

Inventive Principle:
Principle #10Preliminary action

4Manufacturing precision

If engineered organisms are directly released into target population, then trait introduction is achieved, but fitness loss occurs due to inbreeding

Engineering Contradiction:
Improvetrait introduction accuracyVSAvoidgenetic diversity
Core Design Contradiction:
Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The patent applies preliminary action by pre-selecting heritable traits and impregnating captive females with specific genetic material before release. This ensures that the desired genetic characteristics are established in advance through controlled breeding, eliminating the need for direct release of engineered organisms and preserving genetic diversity while maintaining precise trait introduction.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses copying by introducing preselected heritable traits through engineered organisms that replicate and transmit these traits to subsequent generations. The genetic material is copied and propagated naturally through reproduction, replacing the need for direct release of large numbers of engineered organisms and maintaining genetic diversity through natural breeding processes.

Inventive Principle:
Principle #26Copying

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method allows for efficient introduction of novel alleles and phenotypes into target populations without direct addition of engineered organisms, enhancing population robustness, survival, and health, while also enabling the introduction of traits that can impact population dynamics, such as reducing female fertility.

Implementation Method 1

using techniques such as gene-drive systems and RNA-guided nucleases to disrupt X-chromosome activity

Methodology Applied
Scientific EffectRNA-guided nuclease activity: Enzyme

Data Source

PatentUS20220408702A1Directed changes in organism populations
Publication Date: 2022.12.29 TRUSTEES OF TUFTS COLLEGE
  • US20220408702A1 patent drawing
  • US20220408702A1 patent drawing
  • US20220408702A1 patent drawing

AI summary

The invention relates, in part, to methods to introduce gene alleles of interest into members of a population of a species. The invention also relates to methods to prepare large numbers of organisms comprising one or more introduced alleles of interest in an otherwise wild-type genome.