We have found the following table useful when assigning new genes to linkage groups, either with Parental:Recombinant random isolates or with Parental ditype:Nonparental ditype tetrads. The ratios for total numbers through 50 are from Perkins, D.D. 1953 Genetics 38:187-197, and were extracted from tables in Warwick, B.L. Texas Agric. Exper. Sta. Bull. 463:1-28. The ratios for total numbers from 51-100 were obtained using binomial probability paper (Mosteller, F., and J.W. Tukey. J. Amer. Stat. Assoc. 44:174-212).
Smallest numerical ratios showing significant deviation in one direction from 1 : 1
Total Ratios numbers 5% 2.5% 1% 5 5:0 6 6:0 6:0 7 7:0 7:0 7:0 8 7:1 8:0 8:0 9 8:1 8:1 9:0 10 9:1 9:1 10:0 11 9:2 10:1 10:1 12 10:2 10:2 11:1 13 10:3 11:2 12:1 14 11:3 12:2 12:2 15 12:3 12:3 13:2 16 12:4 13:3 14:2 17 13:4 13:4 14:3 18 13:5 14:4 15:3 19 14:5 15:4 15:4 20 15:5 15:5 16:4 21 15:6 16:5 17:4 22 16:6 17:5 17:1 23 16:7 17:6 18:5 24 17:7 18:6 19:5 25 18:7 18:7 19:1 Total Ratios numbers 5% 2.5% 1% 26 18:8 19:7 20:6 27 19:8 20:7 20:7 28 19:9 20:8 21:7 29 20:9 21:8 22:7 30 20:10 21:9 22:1 31 21:10 22:9 23:8 32 22:10 22:10 23:9 33 22:11 23:10 24:9 34 23:11 24:10 25:9 35 23:12 24:11 25:10 36 24:12 25:11 26:10 37 24:13 25:12 26:11 38 25:13 26:12 27:11 39 26:13 27:12 28:11 40 26:14 27:13 28:12 41 27:14 28:13 29:12 42 27:15 28:14 29:13 43 28:15 29:14 30:13 44 28:16 29:15 31:13 45 29:16 30:15 31:14 Total Ratios numbers 5% 2.5% 1% 46 30:16 31:15 32:14 47 30:17 31:16 32:15 48 31:17 32:16 33:15 49 31:18 32:17 34:15 50 32:18 33:17 34:16 51 33:18 52 33:19 53 34:19 54 34:20 55 35:20 56 35:21 57 36:21 58 36:22 59 37:22 60 38:22 61 39:22 62 39:23 63 39:24 64 40:24 Total Ratios numbers 5% 65 40:25 66 41:25 67 41:26 68 42:26 69 43:26 70 43:27 71 44:27 72 44:28 73 45:28 74 45:29 75 46:29 76 46:30 77 47:30 78 47:31 79 48:31 80 49:31 81 49:32 82 50:32 83 50:33 84 51:33 85 51:34 86 52:34 87 52:35 88 53:35 89 54:35 90 54:61 91 55:61 92 55:37 93 56:37 94 56:38 95 57:38 96 57:39 97 58:39 98 58:40 99 59:40 100 59:41
Numerical ratios are those attaining the one-sided significance level shown in percent.