so what is yellow face - Talk Budgies Forums


User Menu
Forum Home
Budgie Gallery
Budgie FAQ
Site Guidelines
How-To-Guide
Members List
Today's Posts
Log In
Register now!
Search



Advanced Search
Popular Forums
Announcements

Budgie Articles

Budgie Talk

Budgie Pictures

Budgie Videos

Budgie Behavior

Determining Gender

Your Budgie's Health

Taming and Bonding

Budgie Breeding

In Memory

Other Birds

Contests

Chit Chat

Site Information

Talk Network
Talk Budgies
Talk Cockatiels
Talk Parrotlets
Talk Parrots
Sponsored Ads

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.
Thread Description:and how does it work

Closed Thread
 
Short URL LinkBack Thread Tools
  #1  
Old 03-18-2010, 05:39 PM
Robbie T's Avatar
Young Budgie
State:
 
Profile:Robbie T is offline
Gender:
Number of Budgies: 2
Budgie Experience Level: Budgie Lover
Join Date: Jan 2008
Location: Kent
Posts: 591
Gallery: 0
Karma:
Points: 117
Rep Power: 12
Robbie T will become famous soon enoughRobbie T will become famous soon enough
Default so what is yellow face

Hi, what causes yellowface in budgies, i mean blue is a lack of yellow base colour so what is YF.

and secondly how is it passed on genetically, i heard it is dominant but anywhere explaining budgie genetics states its complicated.

also there are two types and two colours right (bright/lemony yellow and golden)

Any comments welcomed

__________________
Thanks again to all who voted

Sponsored Links
Advertisement
 
  #2  
Old 03-18-2010, 07:21 PM
nev90's Avatar
Member of the Month January 2009
 
Profile:nev90 is offline
Gender:
Number of Budgies: 160+
Budgie Experience Level: Budgie Breeder
Join Date: Feb 2008
Location: Northland, New Zealand
Posts: 3,676
Gallery: 0
Karma:
Points: 1088
Rep Power: 15
nev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud of
Default

There are 3 yellow face mutations: Type 1, type 2 & golden face. The type 1 is a pale yellow, the golden face is very bright yellow & the type 2 is in between. The best way to identify the different types is by the way the yellow spreads into the body colour. The 3 mutations are unrelated to each other and they are all dominant.

There is quite a bit of disagreement about how yellow face mutations should be described but this makes no difference when working out their inheritance. Some people are adamant that the way they describe them is right but nothing has been properly proven

Like any other dominant mutation more than one type of yellow face can appear on the same bird but you probably wouldn't be able to tell visually if a bird had 2 mutations
__________________
  #3  
Old 03-18-2010, 10:05 PM
tonic (Toni)
Older Budgie
 
Profile:tonic is offline
Gender:
Budgie Experience Level: Budgie Enthusiast
Join Date: Nov 2009
Location: Bay of Plenty
Posts: 2,272
Gallery: 0
Karma:
Points: 922
Rep Power: 11
tonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these points
Default

hi there,

the inheritance mostly works like a dominant gene, so understanding what causes yf is not necessary to work out the breeding results luckily... as nev said there is some disagreement.

the only difference from a normal dominant-recessive inheritance pattern i can i think of is with yf1 where a df yf1 has a white face like a non-yf1. the other two act just like you would expect a dominant gene to.

i think there are two theories as to what a yf actually is. some think it is a mutation of the blue gene so that it does not completely lose the yellow. if this is true then a green bird cannot be yellow face, but it can be green/yf blue.

others think it is a completely separate gene that causes the yellow to appear on the blue. in this case any bird, including greens, can be yf but obviously it is not visible on a green...

these differences do make a bit of difference to inheritance but not enough to really confuse things.
Sponsored Links
Advertisement
 
  #4  
Old 03-19-2010, 12:45 PM
Robbie T's Avatar
Young Budgie
State:
 
Profile:Robbie T is offline
Gender:
Number of Budgies: 2
Budgie Experience Level: Budgie Lover
Join Date: Jan 2008
Location: Kent
Posts: 591
Gallery: 0
Karma:
Points: 117
Rep Power: 12
Robbie T will become famous soon enoughRobbie T will become famous soon enough
Default

so would a df type one have a normal white face (blues only)?

What about df type twos and goldenfaces,

are they co-dominant ie would a bird with both goldenface and type two appear different to either variations?
__________________
Thanks again to all who voted

  #5  
Old 03-19-2010, 11:47 PM
tonic (Toni)
Older Budgie
 
Profile:tonic is offline
Gender:
Budgie Experience Level: Budgie Enthusiast
Join Date: Nov 2009
Location: Bay of Plenty
Posts: 2,272
Gallery: 0
Karma:
Points: 922
Rep Power: 11
tonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these pointstonic deserves every one of these points
Default

a df yf1 is white face but a sf yf1 is yellow faced, so if you cross a df yf1 with a normal you get all sf yf1 - yellow faces.

i am not sure what a yf2 and golden face combined would look like. i suspect it would just look like a yf!
  #6  
Old 03-20-2010, 12:01 AM
nev90's Avatar
Member of the Month January 2009
 
Profile:nev90 is offline
Gender:
Number of Budgies: 160+
Budgie Experience Level: Budgie Breeder
Join Date: Feb 2008
Location: Northland, New Zealand
Posts: 3,676
Gallery: 0
Karma:
Points: 1088
Rep Power: 15
nev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud ofnev90 has much to be proud of
Default

Golden face usually hides both the other types and type 2 will hide type 1
__________________
Closed Thread



Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 12:24 PM.



Powered by vBulletin®
Copyright © 2000- 2019, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright © 2006 - , 2403 Networks LLC. All rights reserved.