Common Myelin Regulatory Factor Gene Variants Predisposing to Excellence in Sports.

In all sport disciplines, excellent coordination of movements is crucial for achieving mastery. The ability to learn new motor skills quickly and effectively is dependent on efficient myelination which varies between individuals. It has been suggested that these differences may play a role in athletic performance. The process of myelination is under transcriptional control by Myelin Regulatory Factor (MYRF) as well as other transcription factors (SOX10 and OLIG2). We analyze a panel of 28 single nucleotide polymorphisms (SNPs) located within the frequencies of common variants of MYRF, SOX10 and OLIG2 genes in professional athletes compared to non-athletes. No significant differences were detected after correction for multiple testing by false discovery rate (FDR) for any of the models tested. However, some deviations from the expected distribution was found for seven SNPs (rs174528, rs139884, rs149435516 and rs2238001, rs7943728, rs61747222, and rs198459). The MYRF alleles rs7943728 and rs61747222 showed a correlation with the level of sport achievement among the athletes. Even though the athletes did not differ from the non-athlete controls in the distribution of most SNPs analyzed, some interesting differences of several variants were noted. Presented results indicate that genetic variants of MYRF and SOX10 could be genetic factors weakly predisposing for successful athletic performance.