# Genotypes

FinnGen individuals were [genotyped](genotype-imputation/genotype-data) with Illumina and Affymetrix chip arrays (Illumina Inc., San Diego, and Thermo Fisher Scientific, Santa Clara, CA, USA).

Chip genotype data were [imputed](genotype-imputation/genotype-imputation) using the population-specific[ SISu v4.0 imputation reference panel](genotype-imputation/sisu-reference-panel) of 8,554 whole genomes.

Merged imputed genotype data is composed of 96 data sets that include samples from multiple cohorts.

* Total number of individuals: 392,649
* Total number of variants (merged set): 20,175,454
* Reference assembly: GRCh38/hg38
