Recombination Within, and Frequency of Markers Identified from, Chromosomes in the Wis Strain of Eimeria tenella
| Chromosome no. | Linkage groups | Approximate size (megabase pairs of DNA) | No. crossovers in 22 progeny | Percentage of markers identified |
| 1 | 1, 2 | 1.05 | 12 | 1.4 |
| 2 | 3, 4 | 1.20 | 13 | 13.2 |
| 3 | 5 | 2.0 | 17 | 2.9 |
| 4 | 6 | 2.2 | 3 | 0.5 |
| 5 or 6 | 7 | 3/3.5 | 7 | 2.0 |
| 7 or 8 | 8 | 3.5 | 0 | 1.6 |
| 9 | 9 | 4.5 | 6 | 1.6 |
| 10 | 10 | 4.5 | 10 | 1.6 |
| 11 | 11 | 5 | 33 | 25.0 |
| 12 | 12, 13, 14 | 5.5 | 19 | 2.0 |
| 13 | 15 | >6 | 15 | 15.1 |
| 14 | 16 | >6 | 4 | 2.9 |
| Unlinked groups | 1–57 | 30.6 |