Tiger eye on champagne - Bug or not?
As my colour guide tells, the tiger eye gene, even if it is recessive, is visible on horses with the champagne gene (unless the horses also have double cream).
I thought I had a couple of double tiger eye champagnes in my herd but as I started to focus more on champagne combinations I got non-tiger eye champagnes out of these horses and I realised that I needed to do more experimenting on this.
My first step was to create a line of horses that were 100% confirmed non-tiger eye (which means champagne horses with dark eyes). These horses were then bred to my tiger eyed horses and I could confirm that pretty much all of them only had a single tiger eye gene and not double as I previously thought.
The dam on this horse below is a champagne with dark eyes (+ grey), confirming the presence of just one tiger eye gene and not two. He is also not a double cream champagne, which is demonstrated by a non-cream offspring.
This is the look I previously mistook for having double tiger eye genes because of its more greener colour. But looking at the dam with dark eyes this is definitely also just a single copy of the gene expressed on a champagne with no cream:
Links to other confirmed single tiger eye horses that I have bred where all have a close up picture of their heads in their galleries:
http://www.horseworldonline.net/horse/profile/1352125
http://www.horseworldonline.net/horse/profile/1389045
http://www.horseworldonline.net/horse/profile/1402172
http://www.horseworldonline.net/horse/profile/1397656
http://www.horseworldonline.net/horse/profile/1408554
My next step was to create a line of confirmed double tiger eye champagnes. Since the tiger eye gene is recessive on double cream + champagne I would know for sure that the green eyes were the product of double tiger eye, like this horse shows:
They were bred to double tiger eye horses without cream to get the single cream champagne horses with confirmed double tiger eyes. The results I got were a bit surprising and this is where I started to wonder if it is a bug or not. The confirmed double tiger eye horses look indistinguishable from the single tiger eye versions:
I have searched on the internet about the tiger eye gene and since it can now be tested for irl it is confirmed to be recessive. I could not find anything about it being expressed differently in champagne horses (other than that champagne horses sometimes can have lighter eyes, but with no connection to the tiger eye gene as far as I could find) and since this game is supposed to be very realistic I am wondering if this is intentional or not.
Either way I will have to make some changes to my guide to not make people expect bright green eyes on champagne horses with double tiger eye (as shown above, they do not get bright green eyes) but I wanted to share my findings and ask if anyone else know if this could be a bug or not.
I thought I had a couple of double tiger eye champagnes in my herd but as I started to focus more on champagne combinations I got non-tiger eye champagnes out of these horses and I realised that I needed to do more experimenting on this.
My first step was to create a line of horses that were 100% confirmed non-tiger eye (which means champagne horses with dark eyes). These horses were then bred to my tiger eyed horses and I could confirm that pretty much all of them only had a single tiger eye gene and not double as I previously thought.
The dam on this horse below is a champagne with dark eyes (+ grey), confirming the presence of just one tiger eye gene and not two. He is also not a double cream champagne, which is demonstrated by a non-cream offspring.
This is the look I previously mistook for having double tiger eye genes because of its more greener colour. But looking at the dam with dark eyes this is definitely also just a single copy of the gene expressed on a champagne with no cream:
Links to other confirmed single tiger eye horses that I have bred where all have a close up picture of their heads in their galleries:
http://www.horseworldonline.net/horse/profile/1352125
http://www.horseworldonline.net/horse/profile/1389045
http://www.horseworldonline.net/horse/profile/1402172
http://www.horseworldonline.net/horse/profile/1397656
http://www.horseworldonline.net/horse/profile/1408554
My next step was to create a line of confirmed double tiger eye champagnes. Since the tiger eye gene is recessive on double cream + champagne I would know for sure that the green eyes were the product of double tiger eye, like this horse shows:
They were bred to double tiger eye horses without cream to get the single cream champagne horses with confirmed double tiger eyes. The results I got were a bit surprising and this is where I started to wonder if it is a bug or not. The confirmed double tiger eye horses look indistinguishable from the single tiger eye versions:
I have searched on the internet about the tiger eye gene and since it can now be tested for irl it is confirmed to be recessive. I could not find anything about it being expressed differently in champagne horses (other than that champagne horses sometimes can have lighter eyes, but with no connection to the tiger eye gene as far as I could find) and since this game is supposed to be very realistic I am wondering if this is intentional or not.
Either way I will have to make some changes to my guide to not make people expect bright green eyes on champagne horses with double tiger eye (as shown above, they do not get bright green eyes) but I wanted to share my findings and ask if anyone else know if this could be a bug or not.
Re: Tiger eye on champagne - Bug or not?
I always thought the deal with tiger eye in the game was that single copies didn't show up in non-champagne, but that it affected champagne horses even if there was only one copy. In my mind this meant that tiger eye behaves in a dominant fashion on champagne horses, meaning that one copy will not look different from two (not accounting for the effects of other dilutions). I could be wrong on this, but that seems to be supported by what you said above.Totina wrote: