Fig. 3
From: The genetic basis of diurnal preference in Drosophila melanogaster
Circadian behaviour of nocturnal and diurnal selection flies. a. Boxplots of circadian periods under free-run conditions. Statistical differences were tested by a TukeyHSD test, with * signifying p < 0.05. b. Acrophase angles of the free-run activity for N (black circles, n = 255), D (red circles, n = 159) and C (blue triangles, n = 65) populations. The free-run phases of the three populations did not differ (F2,476:1.91, p = 0.149, NS). Lines represent mean vectors ±95% confidence interval (CI). One hour corresponds to an angle of 15°. C. Phase delay angles are shown for N (black circles, n = 153), D (red circles, n = 155) and C (blue triangles, n = 56) populations. Differences are not significant (F2,361 = 1.47, p = 0.23, NS). Lines represent mean vectors ±95% CI