minimac 2

minimac 2 performs genotype imputation using phased genotypes and large reference haplotype panels to enable high-quality imputation for genome-wide association studies.

Key Features:

• Phased genotype input: Operates on phased genotypes for imputation.
• Large reference panel support: Manages reference panels containing hundreds or thousands of haplotypes.
• Compatibility with major reference datasets: Designed to work with very large panels such as The 1000 Genomes Project and the Haplotype Consortium.
• Improved rare variant imputation: Enhances imputation quality for rare and less common genetic variants.
• Computational optimization: Addresses computational challenges posed by very large reference panels through software engineering optimizations.
• Speed enhancement: Achieves an order-of-magnitude speed improvement compared to its predecessor.
• Reduced computational cost: Lowers computational cost for large-scale imputation tasks.

Scientific Applications:

• Genome-wide association studies (GWAS): Enables imputation of missing genotypes to increase marker density in GWAS.
• Rare variant analysis: Improves detection and analysis of rare and less common variants via higher-quality imputation.
• Large-scale genomic studies: Supports analyses that require imputation from very large reference panels.
• Genetic association discovery: Facilitates identification of associations between genetic variants and traits.

Methodology:

Operates on phased genotypes and manages reference panels containing hundreds or thousands of haplotypes, employing software engineering optimizations to achieve an order-of-magnitude speed improvement and reduced computational cost.