Gene Editing of Microalgae: Scientific Progress and Regulatory Challenges in Europe

Area of Science:

• Biotechnology and Synthetic Biology
• Microalgal Cultivation and Engineering
• Regulatory Science and Policy

Background:

• Gene editing technologies present powerful tools for enhancing human and animal health, and addressing global population challenges.
• Microalgal strain modification via gene editing can improve productivity, robustness, harvestability, processability, nutritional composition, and applications.
• The rapid advancement of gene editing necessitates a review of genetically modified organism (GMO) definitions and regulations, especially in Europe.

Purpose of the Study:

• To review advances in gene editing techniques applied to microalgae.
• To analyze the impact of current European Union regulations on the commercialization of gene-edited microalgae.
• To consider the existing regulatory framework for GMOs in relation to genetically modified microalgae in Europe.

Main Methods:

• Literature review of gene editing advancements in microalgae.
• Analysis of European Union directives and regulations concerning GMOs.
• Comparative assessment of regulatory exemptions for mutagenesis versus gene editing.

Main Results:

• Gene editing offers precise modifications to microalgal genomes, distinct from traditional mutagenesis.
• Current EU regulations categorize gene-edited microalgae under the GMO umbrella, irrespective of the nature of genetic changes.
• Organisms produced via gene editing, including microalgae, are excluded from commercial opportunities in the EU due to regulatory classification.

Conclusions:

• Existing EU regulations create barriers for the practical and commercial application of gene-edited microalgae.
• A revision of GMO definitions and regulations is crucial to accommodate the advancements in gene editing technologies for microalgae.
• Aligning regulatory frameworks with scientific advancements is essential for harnessing the full potential of gene-edited microalgae.