| Code | Definition | Number of Accessions |
| Mdh1-00.05 | Electrophoretic mobility allozyme Mdh1-.05. | 6 |
| Mdh1-00.1 | Electrophoretic mobility allozyme Mdh1-.1. | 3 |
| Mdh1-01 | Electrophoretic mobility allozyme Mdh1-1. | 51 |
| Mdh1-02.8 | Electrophoretic mobility allozyme Mdh1-2.8. | 1 |
| Mdh1-03.5 | Electrophoretic mobility allozyme Mdh1-3.5. | 1 |
| Mdh1-03.8 | Electrophoretic mobility allozyme Mdh1-3.8. | 1 |
| Mdh1-06 | Electrophoretic mobility allozyme Mdh1-6. | 156 |
| Mdh1-09.2 | Electrophoretic mobility allozyme Mdh1-9.2 | 38 |
| Mdh1-10.5 | Electrophoretic mobility allozyme Mdh1-10.5. | 33 |
| Mdh1-n | Electrophoretic mobility allozyme Mdh1-n. Null Allele. | 2 |