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Mutation, Gene Flow, and Genetic Drift

Mutation, Gene Flow, and Genetic Drift

In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).

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Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.

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Incorporating ecology into gene drive modelling.

Jaehee Kim¹, Keith D Harris², Isabel K Kim¹

¹Department of Computational Biology, Cornell University, Ithaca, New York, USA.

Ecology Letters

|October 15, 2023

Summary

Gene drive technology offers new ways to control diseases and pests. Incorporating ecological factors into gene drive models is crucial for accurately predicting their spread and impact in the wild.

Keywords:

eco-evolutionary dynamics eco-evolutionary modelling non-Mendelian inheritance population genetics population structure

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Area of Science:

Ecology
Evolutionary Biology
Genetics

Background:

Gene drive technology uses engineered alleles to spread rapidly in wild populations, offering potential for disease vector, pest, and invasive species control.
Current gene drive research relies heavily on mathematical and computational models, with limited field testing due to inherent risks.

Conclusions:

Ecological processes must be incorporated into gene drive models for realistic assessments.
Accurate evaluation of gene drive dynamics, potential outcomes, and risks necessitates ecological considerations.
Further research is needed to refine models and prepare for responsible field experimentation.