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Go Back   Talk Budgies Forums > Budgie Talk > Budgie Breeding > Mutations and Genetics


Mutations and Genetics Learn about budgie genetics and the wide variety of mutations.

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  #1  
Old 02-06-2017, 12:46 AM
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Default Opaline - confirmation

I had a breeding pair who produced 3 opaline hens, confirming that the father was split for opaline. This mutation is a little confusing for me, so if you could please confirm the following?

All the visual opalines from this clutch are female, as we know that the mum is not opaline, so only one copy of the gene was passed and it's females who visually show one copy of the opaline gene. However, would all the males from this clutch now be split for opaline due to the father, or is it possible that none of them received that gene?

I am wondering if, in the far future, I decided to breed the males of this clutch with a visual female opaline, whether there would be a good possibility to get several opalines (both male and female) from the clutch.


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  #2  
Old 02-06-2017, 03:25 AM
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You have a pretty good grasp of things there.

Half the chicks would have received opaline from the father if he is split for it. It was just chance that all the females happen to be opaline in that nest, some could have been normals also. So, half the male chicks will also be split for opaline and can produce opaline hens when bred with a normal mate, or can produce both male and female opaline chicks if bred with an opaline mate.
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Old 03-03-2017, 11:32 PM
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Quote:
Originally Posted by tonic View Post
You have a pretty good grasp of things there.

Half the chicks would have received opaline from the father if he is split for it. It was just chance that all the females happen to be opaline in that nest, some could have been normals also. So, half the male chicks will also be split for opaline and can produce opaline hens when bred with a normal mate, or can produce both male and female opaline chicks if bred with an opaline mate.
So following this, the other clutch had a normal male and an opaline female for parents. No opalines were born out of their two clutches. Is this odd? Does this just mean that the odds are strong that the males, who would not show that one gene, are now split for opaline? Or could it not show up in a clutch at all?
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Old 03-04-2017, 03:15 AM
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That mating would only be able to produce opalines if the male was split for opaline, which the results indicate he isn't.

The hen can give her chicks either an x chromosome with opaline or a y chromosome. The cock can only give them one of his two x chromosomes (which in this case likely didn't have opaline).

So all the male chicks got an x with opaline and an x without opaline - so are all normal split for opaline.
The female chicks got a y and an x without oplaine and so are normal.

So all the male chicks are split for opaline and can produce opaline chicks. Does that make sense?
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Old 03-04-2017, 03:55 AM
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The other pair was a normal male and an opaline female. Out of both of their clutches, there were no visible opalines. Is it possible the gene just wasn't passed? Or would this case be the opposite of above, that the gene happened to pass to the males instead and they are now split for opaline?
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Old 03-05-2017, 03:47 PM
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Default Opaline - conformation

For some reason it won't let me add to my original post!

So, in an opposite pairing, where the mother is a visual opaline and the father is a normal, and there were no visual opalines out of two different clutches, is it possible the gene wasn't passed along? Or more likely that the majority of the male chicks are now split for opaline.
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Old 03-05-2017, 04:09 PM
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From that specific pairing you have mentioned, all males will necessarily be split for opaline.

I have merged this latest thread to your previous one.
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Old 03-05-2017, 04:17 PM
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Quote:
Originally Posted by Budgielovinpixi View Post
For some reason it won't let me add to my original post!

So, in an opposite pairing, where the mother is a visual opaline and the father is a normal, and there were no visual opalines out of two different clutches, is it possible the gene wasn't passed along? Or more likely that the majority of the male chicks are now split for opaline.
My response above was referring to this mating.
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Old 03-05-2017, 06:18 PM
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Quote:
Originally Posted by tonic View Post
Quote:
Originally Posted by Budgielovinpixi View Post
For some reason it won't let me add to my original post!

So, in an opposite pairing, where the mother is a visual opaline and the father is a normal, and there were no visual opalines out of two different clutches, is it possible the gene wasn't passed along? Or more likely that the majority of the male chicks are now split for opaline.
My response above was referring to this mating.
Thanks, I get it!! Sorry for the double posts; I was looking at the forum in Firefox and for some reason it's not updating. Chrome works though
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