- May 10, 2010
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One of the difficulties with black is that it can be produced on any of the five e alleles and can be produced by different combinations of black enhancers. Karen is correct in that the basic pigment of black is dominant, however, one also can have black as a recessive as with the Blue gene. In addition some researchers have found a group of genes tentatively called 'rb 'or recessive black. Generally the recessive alleles do/can have some affect when heterozygous. An all black or nearly all black bird likely has black enhances that account for the coloration. I don't think that black can be accounted for with a single gene other than with the Blue alleles which is the recessive occurrence
Dave
Edit Getting back to Mottle - it is the Mottle gene that gives the white tipped feathers on the desired MF pattern. Mottle inhibits the production of pigments on the feather, in this case just at the feather tip when non hysterical Mottle (normal Mottle) is used.
Dave
Edit Getting back to Mottle - it is the Mottle gene that gives the white tipped feathers on the desired MF pattern. Mottle inhibits the production of pigments on the feather, in this case just at the feather tip when non hysterical Mottle (normal Mottle) is used.
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