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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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Old 04-05-2010, 05:51 AM
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Lightbulb :S XX and XY

Hey all,
so I just read that male budgies are XX and females are XY!
random as....
I'm studying Human genetics at university this year and so i understand genetics well. well... not as well as i thought....
just wondering if anyone knows enough about budgie genetics that they could almost teach me about it??
Mainly the sex chromosomes would be cool thanks heaps!!

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Old 04-05-2010, 06:06 AM
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Actually birds are ZZ (Male) and ZW (Female). But for simplicities sake we usually refer to them in the mammalian terms XX and XY.

As with any species, budgies have dominant and recessive genes (or mutations as they are referred to when speaking about genetic alterations that in single or double form produce a phenotypical change). They also have mutations that are carried solely on the sex chromosomes, specifically the X chromosome as the Y chromosome seems either non-functional or perhaps non-functional in the sense of carrying phenotypically altering genetic mutations.

Some basic (but not exhaustive) examples of sex linked genes in budgies includes the common ones such as opaline, cinnamon and ino (both lutino and albino are the same gene acting on a white based bird <albino> or a yellow based bird <lutino>).

Because the sex linked gene is carried on the X chromosome, it is more common to see sex linked mutations in female budgies because of the fact they only have (and therefore need) one X chromosome in order to display that particular mutation whereas males would require the mutated X chromosome from both the father AND the mother in order to physically display the mutation (as opposed to being merely a carrier of it, which is termed 'being split for' a certain mutation).

Hope that goes some way toward helping...

Edit: Yes humans are the opposite - males are XY and females are XX
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Old 04-05-2010, 06:19 AM
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Thanks for your quick reply!! and all the great info.
Just wondering if you know much about what genes are on the z and w chormosomes....
thanks
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Old 04-05-2010, 06:26 AM
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A complete list can be found here https://www.****************/colorsguide.html.

All sex linked mutations in budgies are carried on the Z (aka X) chromosome. They include as follows:

Opaline
Ino
Cinnamon
Clearbody
Slate
Lacewing (ino/cinnamon combination)

Thats as far as it goes as far as I can recall.
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Old 04-05-2010, 06:30 AM
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cool thanks
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Old 04-05-2010, 06:32 AM
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Just noticed you are a kiwi lol. Yay
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Old 04-05-2010, 06:38 AM
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Quote:
Originally Posted by Guthwulf View Post
Just noticed you are a kiwi lol. Yay
hey! i just realised you're a kiwi too
go us! ha.
Where abouts in NZ if you don't mind me asking?
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Old 04-05-2010, 06:40 AM
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Quote:
Originally Posted by bex.ryder View Post
hey! i just realised you're a kiwi too
go us! ha.
Where abouts in NZ if you don't mind me asking?
In the tron (hamilton). Pretty close to some of NZ's top show breeders, handy that
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Old 04-05-2010, 06:45 AM
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Quote:
Originally Posted by Guthwulf View Post
In the tron (hamilton). Pretty close to some of NZ's top show breeders, handy that
Ha didn't even know we had show breeders lols!

Hamilton a nice.

I'm originally from hawkes bay
but i now live in palmerston north! at uni

So you breed?? Awesome. I wanna breed my pair - if they bond. My hens still in quarantine atm! And i know that a single pair is hard to breed. but meh. if it happens it happens. if not then meh
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Old 04-05-2010, 06:54 AM
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Quote:
Originally Posted by bex.ryder View Post
Ha didn't even know we had show breeders lols!

Hamilton a nice.

I'm originally from hawkes bay
but i now live in palmerston north! at uni

So you breed?? Awesome. I wanna breed my pair - if they bond. My hens still in quarantine atm! And i know that a single pair is hard to breed. but meh. if it happens it happens. if not then meh
Oh I breed alright lol. My breeding friends have 200-300 budgies each usually. Sometimes up around 400-450 after a breeding season (before making culls and selling excess). I initially started breeding for colour, and even now I still favour the violets and am slowly building up numbers (violets are so hard to come by, let alone quality ones). Im trying to sell most of my stock to focus on show birds now but its a bad time of year to be selling budgies so we'll see how that goes. Not in any rush...
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