The dark genome and pleiotropy: challenges for precision medicine

Area of Science:

• Genomics and Functional Genomics
• Systems Biology
• Translational Medicine

Background:

• A significant portion of the human and mouse genomes, termed the "dark genome," remains functionally uncharacterized.
• Limited knowledge of gene function and pleiotropy (how variants affect multiple phenotypes) hinders understanding of genetic variation's impact on disease.
• This knowledge gap compromises efforts in disease genetics, therapeutic development, and precision medicine.

Purpose of the Study:

• To address the challenge of the dark genome and limited understanding of pleiotropy.
• To highlight the necessity of international collaboration for high-dimensional phenotype data acquisition and analysis in model organisms.
• To showcase the International Mouse Phenotyping Consortium's approach to functional genomics at a genome-wide scale.

Main Methods:

• Acquisition and analysis of high-dimensional phenotype data from model organisms.
• Genome-wide functional genomics programs.
• Coordinated international research efforts.

Main Results:

• Revealing novel features of the pleiotropic landscape across the genome.
• Advancing the understanding of gene function and its role in complex disease systems.
• Providing a framework for illuminating the dark genome.

Conclusions:

• Illuminating the dark genome and understanding pleiotropy are essential for advancing biomedical research and healthcare.
• Large-scale, coordinated functional genomics initiatives, like the International Mouse Phenotyping Consortium, are critical for achieving these goals.
• The study provides insights into the complex pleiotropic landscape, paving the way for improved disease gene interpretation and therapeutic strategies.