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Posted by patricia sherman on August 10, 2002 at 23:59:51:
In Reply to: Re: a few more notes... posted by patricia sherman on August 10, 2002 at 15:43:35:
Just ignore what I said about the fact that all your bug-eyeds are male. The original post on this thread, was about a bug-eyed female that had been bred to a carrier male.
That doesn't rule out the possibility that the gene is located on the sex chromosome. I don't know if any work has been done to establish the loci of the leucism gene and the bug-eyes gene. I'm again thinking of what I know about cats. In cats, the gene for coat colour is definitely located on the X chromosome. This is proven by the fact that tortoishell and calico cats are always females (with the very rare exception of the "male" that possesses the XXY chromosome combination, and is in fact a hermaphrodite). In order to produce a tortoishell or calico, one needs to combine the black and gold/red so that they're exhibited as blotches. If one wishes to breed the tortie female, it is necessary to use a black or a gold/red male. The male offspring may be black where they've inherited the black gene from the sire, or they may be gold/red where they've inherited the gold/red gene from the sire, but only the female offspring can be tortie, because the colour gene is on the X chromosome of which the male offspring only has one, but the female has two.
::Also for what its worth, all the bug eyed specimens I have seen were males. Could it also be a sex linked trait???
:What an intriguing tidbit of information. The numbers of individuals (three) to which you apply this observation are too few to determine whether or not it is linked. If so, then one could almost be sure that the bug-eyed gene lies on the "Y" chromosome (unless reptiles are like birds, oddly in which "YY" is the female, and "XX" is the male).
