Hi everybody,
Back from a long week-end and I have just found some very interesting ideas/pics.
1. Do Turquoise and Emerald interaction induce a diferent phenotype than the simple addition of both phenotypes? That is an Emerald TurquoiseBlue (or an EmeraldBlue if you prefere till we get the rigth cue) shows...
1.1 .... a patched or a non patched phenotype?
1.2. .... a greenish colour stable from feathering or a progressive greener color?
We have pics for both, patching and colour, showing both situations. Which is the good one or how to explain both situations? I have postulated that the apparent non patched phenotype, probably with progressing greener colour, could be Green series Emeralds. One posible cue to check it could be the main tail feather colour under normal lighting, which is like a normal blue in blue series Emerald and greener in Green series. This idea could be wrong if the interaction of Emerald with Turquoise induced a "spreading" of yellow pigment to the main wing and tail feathers.
In Deon's pics the situation is complicated by the addittion of Opaline to the mix. The greener birds chicks in Deon's pic do not show any patchiness, and, at priori it would not be due to the presence of Opaline (Opaline Turquoise combo produce patched birds, with a decreasse in the apparent amount of yellowness as described by Johan and seen in
http://www.psittacula-world.com/EN/Psit ... rld-EN.htm). This greener color is atributed by Deon, despite the lack of patched psittacin and the earlier even green color, to the presence of Turquoise. The other possibility is that the chicks were Green series Emeralds, and thus, the mother must also be a Green series bird.
@Deon: could it be posible to have in the same pic the main tail feather of the mother together with a normal blue feather under normal lighting? If they are the same it would point to the mother being a blue series bird and the even Green colouring without patches of the chicks being due to an special interaction between Turquoise and Emerald. If the mother's tail is greener it would point to the mother being a Green series bird and probably also the chicks.
@Ben.
Thank you a lot for the pics of Aaron's Violet Green. I agree with you that this is the bird to finally answer what really Emerald is since the Emerald gene is carried by the male as is clearly seen in the underwing creamy patch of the offspring.
But ... we should look at this bird with the rigth "eyes":
1. You say that the lack of the creamy underwing patch is a sign of the bird being split Emerald. I do not agree: the underwing creamy patch (either structural or pigmentary) is masked in Green series birds by the presence of yellow psittacofulvines.
2. We are considering Emerald as a posible structural mutation acting on the feather cortex, and we also have indirect data pointing to an action of Violet also in the feather cortex. In this situation we can not exclude an interaction between both mutations producing a masking effect.
What should we look for in this Violet Green male to know if he is also Emerald or just split Emerald? Two things:
1. Emerald combination with parblues has so far never allowed to produce birds showing a red ring. If this Violet Green male does not show a red ring it would point to Emerald being expressed. The problema is that, on these pics, I am not able to say if the red ring is present or not. Could you get better pics or directly ask Aaron?
2. The ligth yellow colour of Emerald can be easily masked by the presence of yellow psittacins in Green series birds under normal ligthing, but when you look at feathers containing both pigments under 365 nm uv ligth, it is the Emerald fluorescence which will mask the normal psittacin fluorescence. We need to look at this bird under uv to know for sure if Emerald is expressed or not.
I hope you agree with these ideas.
Regards
Recio