*2.1. Samples and Genotyping*

Samples for this study included SNP-genotypes of 706 individuals from twentyseven Russian local sheep breeds which were genotyped using the OvineSNP50 BeadChip (Illumina, San Diego, CA, USA) or the Ovine Infinium HD BeadChip (Illumina, San Diego, CA, USA) [20]. The 50k SNP genotypes for 391 samples were generated in our previous research [24]. Additional 315 samples were genotyped using the Ovine Infinium HD BeadChip [25]. The details on the used data collection are given in Table 1.


**Table 1.** Sample collection of Russian sheep populations used in this study.


**Table 1.** *Cont.*

<sup>1</sup> *n*—total sample number; <sup>2</sup> *n*50k—number of samples generated by using OvineSNP50 BeadChip (Illumina, San Diego, CA, USA) for our previous study [24]; <sup>3</sup> *n*600k—number of samples generated by using Ovine Infinium HD BeadChip (Illumina, San Diego, CA, USA); 4—the details on the origin and developmental history for each breed are available in [24].
