genetic question on spangling....

[nzpouter]

Quote:
It's a dominant gene? Yes? where can I see it on the parent birds.... and can this gene be isolated and bred further to give me more spangles? Thanks.

 

[Henk69]

Yes, it is a dominant gene, but not always behaving like that.
It expresses stronger on females. It has influence on patterns unlike some other melanizers (black enhancers).

It is present in (the genes Db, Ml and Pg are linked, same chromosome. Columbian gene = Co is independant):
hamburgh type spangled E^R (maybe E) plus Db-Ml-Pg co+
single laced e^b db+-Ml-Pg Co
double laced e^b (or E^Wh) plus db+-Ml-Pg co+
some quails e+ Ml Co
some melanized wildtypes e+ or e^b plus Ml (females are quail-looking with more spangling on breast, males often BBR looking)
some self blacks E or E^R plus Ml
blue andalusian's blue E (or E^R) db+-Ml-Pg Co (or co+) Bl/bl+
etcetera

Db = "Dark brown" (named after a chick down effect)
Pg = Pattern gene
Ml = Melanotic
Co = Columbian
E = Extended black
E^R = Birchen
E^Wh = wheaten (e^wh)
e+ = wildtype/duckwing
e^b = brown/partridge

 

[Freeholder]

Henk, you are just the person I need! We've been talking about different colors on the Faverolles thread -- I would love to develop a line of Mille Fleur Faverolles. I love the color, just would like to have it in a large fowl rather than a bantam. What color of Faverolle would be best to start with? I have some Salmon (still chicks) and will be getting more, but we have white and maybe mahogany also available here. Would it be better to start with white or mahogany rather than salmon? And then what to cross them with? I can get Mille Fleur Leghorns, but it would take a long time to get the type back if I used them. Not to mention the ear-lobe and skin color are wrong for Faverolles -- but then, I don't really need to make a variety of Faverolles, just want a good dual-purpose bird with the Mille Fleur color.

Kathleen

 

[nzpouter]

speckled sussex.