SUMMARY
Received: 2020-10-22 Accepted: 2021-02-08 Available online: 2021-02-28https://doi.org/10.15414/afz.2021.24.mi-apa.11-14The aim of the study was to determine the state of genetic diversity in Charolais and Limousine populations. The analysis wasbased on the panel of 49 629 SNPs that were used for genotyping of 85 individuals. For the assessment of the genetic diversity,the genomic inbreeding coefficient resulting from runs of homozygosity distribution in the genome and linkage disequilibriumbased effective population size (Ne) were calculated. The results reflected a decrease in recent inbreeding (FROH >16 Mb under 1%)compared to historical (FROH >1 Mb in average 6%). The current effective population size was estimated based on the linear regressionusing Ne estimates for 50 generations ago. 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