Developing technologies to engineer plant genomes at the megabase scale

The OMEGA project aims to identify essential plant genes and develop Megabase-scale genome editing tools to enhance genomics and synthetic biology applications in plants.

Subsidie
€ 1.496.250
2022

Projectdetails

Introduction

Genomics research combined with revolutionary genome editing tools has created new opportunities to explore fundamental aspects of biology and develop novel (bio)technologies for medicine, agriculture, and industry. The OMEGA project is designed to build on these developments by enabling Megabase-scale engineering of plant genomes.

Essential Genes in Plants

Experimentally-determined lists of essential genes have been crucial for such large-scale projects in other species but are currently unavailable in plants. Therefore, the OMEGA project needs to determine which plant genes are essential for growth and development.

Limitations of Current Technologies

However, the standard technologies used to identify essential genes are limited by genetic interactions, such as:

  • Redundancy
  • Synthetic lethality

My group is developing multiplex CRISPR screens in plants to specifically overcome these limitations.

Genome-Wide Essential Genes

The OMEGA project will use this capability to identify genome-wide essential genes and genetic interactions in Physcomitrium patens. This will be the first systematic genetic interaction screen in plants and will likely identify interactions conserved across the green lineage.

Megabase-Scale Engineering

The OMEGA project will also develop technologies to move, edit, and delete DNA at the Megabase scale. As proof-of-concept, I aim to:

  1. Reduce ~10% of the P. patens genome
  2. Remove all non-essential DNA from one chromosome

The SCRaMbLE system will be adapted for P. patens and used as an alternative approach to minimize chromosomes and also perform in planta directed evolution.

Biosynthetic Pathways Development

Lastly, we will use a DNA assembly method developed in my lab to build biosynthetic pathways in vivo using modular DNA assembly methods.

Conclusion

These tools will create opportunities to explore fundamental aspects of genomics, chromosomal biology, and synthetic biology. The objectives of project OMEGA are necessarily ambitious, as these technologies will allow us to perform controlled, Megabase-scale engineering projects in plant genomes that are not possible with the current generation of genome editing tools.

Financiële details & Tijdlijn

Financiële details

Subsidiebedrag€ 1.496.250
Totale projectbegroting€ 1.496.250

Tijdlijn

Startdatum1-7-2022
Einddatum30-6-2027
Subsidiejaar2022

Partners & Locaties

Projectpartners

  • VIB VZWpenvoerder

Land(en)

Belgium

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