Comparative population genomics of Arctic sled dogs reveals a deep and complex history

Recent evidence demonstrates genomic and morphological continuity in the Arctic ancestral lineage of dogs. Here, we use the Siberian Husky to investigate the genomic legacy of the northeast Eurasian Arctic lineage and model the deep population history using genome-wide SNPs. Utilizing ancient dog calibrated molecular clocks, we found that at least two distinct lineages of Arctic dogs existed in ancient Eurasia at the end of the Pleistocene. This pushes back the origin of sled dogs in the northeast Siberian Arctic with humans likely intentionally selecting dogs to perform different functions and keeping breeding populations that overlap in time and space relatively reproductively isolated. In modern Siberian Huskies, we found significant population structure based on how they are used by humans, recent European breed introgression in about half of the dogs that participate in races, moderate levels of inbreeding, and fewer potentially harmful variants in populations under strong selectio..., , , # Comparative population genomics of Arctic sled dogs reveals a deep and complex history

**[https://doi.org/10.5061/dryad.8gtht76w4](https://doi.org/10.5061/dryad.8gtht76w4)**

This dataset contains the SNP genotype data in *Plink* ped and map format.

## Description of the data and file structure

The dataset in these files contains the SNP genotype data for the canids used in this study including Alaskan sled dog (heritage, distance and sprint), Siberian Husky (Pet, Racing, Seppala, Show and Sled-Show), Alaskan Malamute, Chukotka Sled Dog, Greenland sled dog, Golden Retriever, German Shepherd, Saluki, Samoyed, German Shorthaired Pointer, North American Grey Wolf, and three ancient canids (Zhokhov dog, Port au choix pre-contact dog, and Yana wolf). 

The QC.ped and QC.map files includes the 124905 variant dataset that has been filtered and pruned for to remove variants with missing call rates above 1%, individuals missing more than 33% genotype data, minor allele frequencies below 1%,...