| 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, Aunt-Nephews, are F1 this is a real Mendelian F1 cross. |
| Breeders |
| KB : | Keld Brandstrup (DK) |
| MKN : | Foundation Buckfast Marken (NL) |
| PS : | Poul Erik Sørensen †2012(57) (DK) |
| SGS : | Svetlana Shpringer |
|
| Races — Do use them |
| B: | buckfast |
| Ca: | carpatica |
| D: | cecropia macedonica |
| M: | monticola - East-African Mountains |
|
| Importation mode |
| ieg : | Eggs imported (brood comb) |
| imq : | Laying queen imported |
| Mating Places, etc |
| insg : | Instrumental insemination (RU) |
| nex : | Nekselø island (DK) |
| oro : | Orø island (DK) |
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