It acts as a recessive, but not the "simple" type. IMO it is part of a "complex" of cooperating recessive genes. This includes all of the patterning traits.
Each "new" pattern that has been produced over the years, is more or less the "super" form. Stripes came from Jungles, Reverse Stripes came from Jungles/Stripes. "Patternless Stripe/Designers" came from Stripe/Reverse Stripe lines, and Eclipse comes from the "Patternless Stripe"/Reverse Stripe types.
That is my guess why pretty much all of the Aptors, het Aptors, and even "Patternless Stripes"(the ones not related to any R/Aptors***) prove out to be "hets". The patterning is what is responsible, not a single gene.
*** "Patternless Stripes"(as Alberto named them) came from Red Stripe X Reverse Stripe Albino, and were not related to any R/Aptors. They looked like non-Albino Aptors, and sure enough Alberto`s, and the ones I produced here around the same time, proved to be "hets".
Just thought I should ad this. Co-recessive means, when two or more recessive genes exist polygenically. Traits that are determined by a series of gene pairs are refered to as polygenic.
Yea I think I remember a forum member proving that they were different. But I still don't understand how I can randomly pop out eclipse eyes in pairings where to my knowledge only one parent is carrying the trait.