Kev wrote:
"Formally", 'pure' naked neck would be genotype (NaNa), 'not pure' would be (Nana+) and 'feather neck' (na+na+). The + is just a notation to indicate wild type (Henk's calculator uses it for example). Not naked neck is the wild type version for this gene.
NaNa x na+na+= 100% Nana+
Nana+ x na+na+= 50% Nana+, 50% na+na+
Nana+ x Nana+= 25% NaNa, 50% Nana+, 25% na+na+ (this one is how two naked necked parents can throw feather neck chicks)
NaNa x NaNa= 100% NaNa
NaNa x Nana+ = 50% NaNa, 50% Nana
'Pure' can be small or no bow tie, 'not pure' is big bow tie, and 'feather neck' has no naked neck.
Hi! I keep reposting this handy-dandy chart because it is nice to refer to.
There are 2 *ways* the naked neck gene can be expressed.
NaNa has a small tuft of feathers on the neck or a fully naked neck.
Nana+ has a large tuft of feathers on the neck.
If a naked neck bird (male or female) is NaNa, and mated to a feather neck bird (male or female) --- all the chicks (male and female) will be Nana+.
If a naked neck bird (male or female) is Nana+, and mated to a feather neck bird (male or female) --- half the chicks (male and female) will be Nana+ and half the chicks (male and female) will be feather neck.
I got to get caught up taking pics, I've had NN chicks hatching every Thurs here. Yaaay, new generation of barred and blue barred NN chicks.
Lisa