Table 1.
Summary of investigated SNPs
| Gene | SNP ID | Allele | Genotypic frequency | Related phenotype | ||
|---|---|---|---|---|---|---|
| M/M | M/m | m/m | ||||
| PERI | rs2735611 | T/C | 419 | 129 | 14 | Diurnal preference (Carpen et al., 2006) |
| PER2 | rs934945 | G/A | 362 | 175 | 26 | Diurnal preference (Carpen et al., 2006) |
| PER2 | rs2304672 | C/G | 481 | 85 | 1 | Diurnal preference/sleep duration/sleep quality (Carpen et al., 2006; Parsons et al., 2014) |
| PER3 | rs2797687 | C/A | 361 | 164 | 19 |
Delayed sleep phase disorder (DSPD). Archer et al., 2003) |
| PER3 | rs10462020 | T/G | 355 | 164 | 43 | Diurnal preference (Parsons et al., 2014) |
| ABCC9 | rs11046211 | C/T | 503 | 60 | 1 | Sleep duration (Allebrandt et al., 2013) |
| ABCC9 | rs11046209 | A/T | 505 | 60 | 1 | Sleep duration (Allebrandt et al., 2013) |
| ABCC9 | rs11046205 | G/A | 366 | 173 | 21 | Sleep duration (Allebrandt et al., 2013) |
| CACNA1C | rs7304986 | T/C | 542 | 25 | 1 | Sleep latency (Bryne et al., 2013) |
| CACNA1C | rs16929277 | C/G | 530 | 27 | 1 | Sleep quality/sleep latency (Parsons et al., 2013) |
| CACNA1C | rs2302729 | C/T | 382 | 169 | 5 | Sleep quality (Bryne et al., 2013) |
| ARNTL2 | rs922270 | T/C | 414 | 143 | 12 | Worse evening mood/diurnal preference (Parsons et al., 2014; Shi et al., 2010) |
| DBP | rs3848543 | C/T | 400 | 138 | 9 | Worse evening mood (Shi et al., 2010) |
| CLOCK | rs2070062 | T/G | 304 | 214 | 48 | Diurnal preference (Pedrazzoli et al., 2007) |
| GNβ3 | rs5443 | C/T | 285 | 230 | 52 | Sleep quality (Parsons et al., 2014) |