| Color code and Abbreviations |
Queens from one strain, but mated by drones from another strain . Their population and daughters (and drones of them) are F1 crossed. |
| Queen and Drones have the same ancestors: combination to increase or stabilize some characteristics |
| Queen and Drones are Aunt-Nephews : that would correspond by us to a Sister-Brothers crossing. |
| Queen and Drones, Aunt-Nephews, are F1 this is a real Mendelian F1 cross. |
| Breeders |
| AVM : | Andrey Makarov |
| KB : | Keld Brandstrup (DK) |
| MKK : | Pierre de Koning (NL) |
| MKN : | Foundation Buckfast Marken (NL) |
| PJ : | Paul Jungels (LU) |
| ST : | Peter Stougård (DK) |
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| Races — Do use them |
| B: | buckfast |
| C: | carniolian |
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| Importation mode |
| imq : | Laying queen imported |
| Mating Places, etc |
| mrk : | Marken peninsula (NL) |
| nex : | Nekselø island (DK) |
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