Farbvererbung
Genetisch gesehen gibt es nur schwarze (Gen B) und braune (Gen b) Labradors. Diese können entweder ungeblichen mit der Fellfarbe schwarz (BB homozygot oder Bb heterozygot (mischerbig)) und braun (bb homozygot) in Kombination mit dem Genen EE (homozygot für dunkles Pigment) oder Ee (heterozygot für dunkles Pigment) auftreten oder aber geblichen in Kombination mit den Genen ee. Geblichene Labradors sind von gelber Fellfarbe (in allen Variationen von fast weiß bis dunkelrot), haben aber schwarzes (BB oder Bb) oder braunes (bb) Pigment am Nasenspiegel, an Lidern, Lefzen und Haut. Im Hinblick auf das Gen e sind geblichene (gelbe) Labradors immer homozygot, daher kann eine Verpaarung gelb X gelb nur gelbe Labradors ergeben.
B = schwarz dominant
b = leber-, schokoladenbraun, rezessiv
E = überall dunkles Pigment (schwarz oder braun), dominant
e = rot – gelb, rezessiv
| Genauer gibt es folgende Genotypen: | ||
| schwarze Fellfarbe: | gelbe Fellfarbe: | braune Fellfarbe: |
| * BBEE schwarz reinerbig | * BBee gelb mit dunklem Pigment | * bbEE braun reinerbig |
| * BBEe schwarz trägt gelb | * Bbee gelb mit dunklem Pigment trägt braun | * bbEe braun trägt gelb |
| * BbEE schwarz trägt braun | * bbee gelb ohne Pigment trägt braun | |
| * BbEe schwarz trägt gelb und braun | ||
| x | BBEE schwarz |
BBEe schwarz |
BbEE schwarz |
BbEe schwarz |
BBee gelb |
Bbee gelb |
bbee gelb |
bbEE braun |
bbEe braun |
| BBEE schwarz |
100% BBEE | 50% BBEE 50% BBEe |
50% BBEE 50% BbEE |
25% BBEE 25% BbEE 25% BbEe 25% BBEe |
100% BBEe | 50% BBEe 50% BbEe |
100% BbEe | 100% BbEE | 50% BbEE 50% BbEe |
| BBEe schwarz |
50% BBEE 50% BBEe |
50% BBEe 25% BBEE 25% BBee |
25% BBEE 25% BBEe 25% BbEE 25% BbEe |
25% BBEe 25% BbEe 12,5% BBEE 12,5% BbEE 12,5% BBee 12,5% Bbee |
50% BBEe 50% BBee |
25% BBEe 25% BbEe 25% BBee 25% Bbee |
50% BbEe 50% Bbee |
50% BbEE 50% BbEe |
50% BbEe 25% BbEE 25% Bbee |
| BbEE schwarz |
50% BBEE 50% BbEE |
25% BBEE 25% BBEe 25% BbEE 25% BbEe |
50% BbEE 25% BBEE 25% bbEE |
25% BbEE 25% BbEe 12,5% BBEE 12,5% BBEe 12,5% bbEE 12,5% bbEe |
50% BBEe 50% BbEe |
50% BbEe 25% BBEe 25% bbEe |
50% BbEe 50% bbEe |
50% BbEE 50% bbEE |
25% BbEE 25% BbEe 25% bbEE 25% bbEe |
| BbEe schwarz |
25% BBEE 25% BbEE 25% BbEe 25% BBEe |
25% BBEe 25% BbEe 12,5% BBEE 12,5% BbEE 12,5% BBee 12,5% Bbee |
25% BbEE 25% BbEe 12,5% BBEE 12,5% BBEe 12,5% bbEE 12,5% bbEe |
25% BbEe 12,5% BBEe 12,5% BbEE 12,5% Bbee 12,5% bbEe 6,25% BBEE 6,25% BBee 6,25% bbee 6,25% bbEE |
25% BBEe 25% BbEe 25% BBee 25% Bbee |
25% BbEe 25% Bbee 12,5% BBEe 12,5% BBee 12,5% bbee 12,5% bbEe |
25% BbEe 25% Bbee 25% bbee 25% bbEe |
25% BbEE 25% BbEe 25% bbEE 25% bbEe |
25% bbEe 25% BbEe 12,5% BbEE 12,5% Bbee 12,5% bbee 12,5% bbEE |
| BBee gelb |
100% BBEe | 50% BBEe 50% BBee |
50% BBEe 50% BbEe |
25% BBEe 25% BbEe 25% BBee 25% Bbee |
100% BBee | 50% BBee 50% Bbee |
100% Bbee | 100% BbEe | 50% BbEe 50% Bbee |
| Bbee gelb |
50% BBEe 50% BbEe |
25% BBEe 25% BbEe 25% BBee 25% Bbee |
50% BbEe 25% BBEe 25% bbEe |
25% BbEe 25% Bbee 12,5% BBEe 12,5% BBee 12,5% bbee 12,5% bbEe |
50% BBee 50% Bbee |
50% Bbee 25% BBee 25% bbee |
50% Bbee 50% bbee |
50% BbEe 50% bbEe |
25% BbEe 25% Bbee 25% bbee 25% bbEe |
| bbee gelb |
100% BbEe | 50% BbEe 50% Bbee |
50% BbEe 50% bbEe |
25% BbEe 25% Bbee 25% bbee 25% bbEe |
100% Bbee | 50% Bbee 50% bbee |
100% bbee | 100% bbEe | 50% bbEe 50% bbee |
| bbEE braun |
100% BbEE | 50% BbEE 50% BbEe |
50% BbEE 50% bbEE |
25% BbEE 25% BbEe 25% bbEE 25% bbEe |
100% BbEe | 50% BbEe 50% bbEe |
100% bbEe | 100% bbEE | 50% bbEE 50% bbEe |
| bbEe braun |
50% BbEE 50% BbEe |
50% BbEe 25% BbEE 25% Bbee |
25% BbEE 25% BbEe 25% bbEE 25% bbEe | 25% bbEe 25% BbEe 12,5% BbEE 12,5% Bbee 12,5% bbee 12,5% bbEE |
50% BbEe 50% Bbee |
25% BbEe 25% Bbee 25% bbee 25% bbEe |
50% bbEe 50% bbee |
50% bbEE 50% bbEe |
50% bbEe 25% bbEE 25% bbee |
