Pedigreed cats have traditionally been mated with close relatives, which increases the risks for inbreeding depression and genetic disorders. We evaluated the genome-wide population structure and the degree of inbreeding of 1022 cats, including 13 pedigreed and two random bred populations from Japan and the USA, using single nucleotide polymorphism array-based data. 

Thirteen pedigreed and a random-bred populations from Japan were genotyped by using Infinium Feline 63k Iselect Dna Array (Illumina Inc.) to compare the USA population.

The data format is a Plink bed so you can use PLINK software ( https://www.cog-genomics.org/plink/) to handle the data easilly.