iMAPping the Perturb-Atlas

Area of Science:

• Genomics
• Molecular Biology
• Mammalian Genetics

Background:

• Deciphering mammalian genome function remains a significant challenge in the postgenomic era.
• Previous functional genomics efforts have yielded limited success in fully elucidating gene functions.
• Understanding gene function is crucial for advancing biological and medical research.

Purpose of the Study:

• To introduce and validate the inducible Mosaic Animal for Perturbation (iMAP) tool for rapid in situ mammalian genome function analysis.
• To demonstrate the utility of iMAP in constructing a comprehensive gene function atlas.
• To provide insights into gene functions not easily discoverable through conventional methods.

Main Methods:

• Integration of CRISPR-Cas and Cre-Lox technologies to create the iMAP system.
• Application of iMAP for high-throughput perturbation and analysis of gene function.
• Construction of a "Perturb-Atlas" by profiling 90 protein-coding genes across 39 mouse tissues.

Main Results:

• Successful development and implementation of the iMAP technology for rapid genome function studies.
• Creation of a "Perturb-Atlas" offering functional insights into 90 genes across diverse tissues.
• Identification of gene functions that are challenging to study using traditional mouse models.

Conclusions:

• iMAP is a transformative tool for accelerating the understanding of mammalian genome function.
• The "Perturb-Atlas" provides a valuable resource for the research community.
• Future research directions include refining iMAP and expanding its application to a wider range of genes and biological questions.