Statistics on the Distribution of Markers in the Rat Genetic Linkage Maps Combined Over the Crosses WKY × S, BN × S, and BN × GK
| Chr. | Genetic length (cM) | Genetic length (cM)[i] | Total number of markers | Number of gene loci | Number of random markers | Number of anchor loci | Physical relative length[ii] (%) | Genetical relative length (%) | Coverage[iii] |
| 1 | 181.9 | 151 | 86 | 32 | 54 | 53 | 10 | 9.1 | 3.5 |
| 2 | 144.8 | 157 | 66 | 17 | 45 | 39 | 8.94 | 7.25 | 3.8 |
| 3 | 147 | 104 | 49 | 20 | 28 | 25 | 6.75 | 7.36 | 6.1 |
| 4 | 154.4 | 105 | 65 | 21 | 41 | 42 | 6.6 | 7.73 | 3.8 |
| 5 | 118.2 | 116 | 45 | 7 | 38 | 32 | 6.03 | 5.92 | 3.8 |
| 6 | 83.7 | 76 | 40 | 10 | 29 | 21 | 5.28 | 4.19 | 4.2 |
| 7 | 124.6 | 75 | 46 | 15 | 29 | 33 | 5.12 | 6.24 | 3.9 |
| 8 | 112.9 | 97 | 38 | 12 | 25 | 24 | 4.75 | 5.65 | 4.9 |
| 9 | 85 | 41 | 24 | 5 | 19 | 13 | 4.5 | 4.25 | 7.1 |
| 10 | 62.1 | 94 | 50 | 21 | 27 | 29 | 4.26 | 3.11 | 2.2 |
| 11 | 62 | 50 | 18 | 5 | 13 | 11 | 3.66 | 3.1 | 6.2 |
| 12 | 55.7 | 54 | 24 | 7 | 17 | 13 | 2.53 | 2.79 | 4.6 |
| 13 | 68.7 | 56 | 30 | 8 | 21 | 13 | 3.93 | 3.44 | 5.7 |
| 14 | 79.7 | 43 | 24 | 10 | 12 | 16 | 3.86 | 3.99 | 5.3 |
| 15 | 92.6 | 49 | 17 | 2 | 15 | 9 | 3.69 | 4.63 | 11.6 |
| 16 | 56.1 | 17 | 24 | 7 | 16 | 15 | 3.36 | 2.81 | 4.0 |
| 17 | 99.8 | 50 | 33 | 8 | 23 | 17 | 3.32 | 4.99 | 6.2 |
| 18 | 85 | 44 | 30 | 7 | 22 | 17 | 3.18 | 4.25 | 5.3 |
| 19 | 44.3 | 38 | 17 | 5 | 12 | 10 | 2.55 | 2.22 | 4.9 |
| 20 | 56.5 | 47 | 15 | 5 | 9 | 5 | 2.23 | 2.83 | 14.1 |
| X | 83.2 | 45 | 26 | 9 | 16 | 11 | 5.42 | 4.16 | 8.3 |
| Total | 1998.2 | 1509 | 767 | 233 | 511 | 448 | 100 | 100 | 4.7 |
[i] Jacob et al. (1995).
[ii] Based on cytogenetic length: http://www.ratmap.gen.gu.se.
[iii] Coverage per chromosome is calculated as d/n,where d = genetic distance and n = number of intervals between adjacent anchor loci.