Dominant genes for egg color?

[chickfused]

I am considering getting a Whiting True Green and a Whiting True Blue rooster pair to add to my flock. Will their mutt daughters have a chance of producing blue and green eggs?

Thank you!

 

[JacinLarkwell]

Depends on the mother egg colors. WTB will pass blue genes, the WTG will pass blue and brown genes

 

[chickfused]

OK. Is there someplace I can go lookup egg genetics on the web? Like a cross reference tool? I have both brown egg layers and white egg layers, currently truebred, but will undoubtedly get mutted out in the acreage.

 

[JacinLarkwell]

With brown layers, you will get brown and green (varying shades)
With white layers, you will get brown (varying shades) and light blues

 

[chickfused]

Thank you! No tool, huh?

 

[Amer]

Yes. If you have both brown and white egg layers in your flock, they should produce only green and blue eggs in the first generation provided the roosters are homozygous for the blue egg gene.
Whiting true green
+brown egg layer
O/O/B/B o+/o+B/B=O/o+B/B green egg layer
+white egg layer
O/OB/B o+/o+b+/b+= O/o+B/b+ green egg layer

Whiting True Blue
+brown egg layer
O/Ob+/b+ o+/o+B/B=O/o+B/b+ Green egg layer
+white egg layer
O/Ob+/b+ o+/o+b+/b+=O/o+b+/b+ blue egg layer

 

[nicalandia]

If you cross them together and assuming both are homozygous for the Oocyan mutation(blue egg shell mutation), the F1s will lay a light shade of green, not just blue and green laid by separate sisters.