Главная » Статьи » Амадины Астрильды Амаранты » Об амадинах Гульда

Head Color Inheritance Наследование цвета голов гульдовых амадин

Head Color Inheritance



Наследование цвета голов гульдовых амадин. Гульдовые амадины имеют три цвета голов : красный, желтый(оранжевый), черный. Наличие большого количества черного оперения в красной шапочке самок амадин гульда нормальное явление.



 



 



 



 



Для понимания схем паровок, приведенных в таблицах ниже, приведен перевод наиболе часто встречающихся сокращений:



 Это поможет вам в дальнейшем лучше понимать о каких цветовых сочетаниях частей тела  гульдовых амадин идет речь.





Male, Cock - Самец



Hen - Самка




 
RH (Red Head) - Красная голова



BH (Black Head) - Черная Голова



OH (Orange Head) - Оранжевая  Голова

 

YH (
Yellow Head) - Желтая Голова



PB (Purple Breast)
- Фиолетовая Грудь



LB (Lilac Breast) - Сиреневая  Грудь



WB (White Breast) - Белая Грудь



NB  (Normal  Вack) - номинативная (природного зеленого окраса) спинка



YB  (
Yellow Вack) - желтая спинка



BB  (Blue Вack) - cиняя спинка



SB  (
Silver Вack) - серебристая спинка



WB (
White Вack) - белая спинка




Lady gouldians come in three head colors: red, yellow (orange), and black. (Please note that it is normal for hens to have a lot of black feathering in their masks, even if they are not black-headed.)



 



 



 



RH PB Normal Hen RH PB Normal Cock




Red head (RH) is a sex-linked dominant trait, so cocks can be double factor (DF) or single factor (SF) red heads and express it while hens can only ever be single factor (SF) and express it. No cock or hen can ever be split for red head.



 



 



 



BH PB Normal Hen BH PB Normal Cock




Black head (BH) is a sex-linked recessive trait, so cocks can be double factor (DF) (and express a black head) or single factor (SF) (and be "split" for black head) while hens can only ever be single factor (SF) and express it. No hen can ever be split for black head.



 



 



 



 



 



 



YH PB Normal Hen YH PB Normal Cock YTB PB Normal Cock




Yellow head (YH) is an autosomal recessive trait, but also requires at least one red head gene to be present in order to be expressed. If two yellow head genes are present on a bird that has no red head genes (and instead has black head genes), the bird will have a black head with a yellow tipped beak (YTB). This occurs because the bird is genetically a yellow headed bird, but it cannot express the yellow color because the yellow gene depends on the red head gene for expression, and the red head gene is not there. Both cocks and hens can be "split" for yellow head.





Here are some breeding charts which will give you a list of all potential outcomes from a given cock - hen pairing. Recall that Z and W denote the sex chromosomes of avian species (whereas X and Y denote the sex chromosomes of mammalian species), and that unlike mammals, the male finch is the homogametic sex (ZZ) and the female is the heterogametic sex (ZW).



 



 



 



 



 

















RH PB Normal Cock×RH PB Normal Hen

DFRH cock × RH hen
Male Offspring



RH PB Normal Cock























D

a

m

 
S i r e     
  Z Z
Z ZZ ZZ
W ZW ZW

Female Offspring



RH PB Normal Hen
All cocks produced will be DFRH & all hens will be RH.


 



 



 



 



 

















RH PB Normal Cock×RH PB Normal Hen

SFRH cock × RH hen
Male Offspring



RH PB Normal Cock























D

a

m

 
S i r e     
  Z Z
Z ZZ ZZ
W ZW ZW

Female Offspring



RH PB Normal Hen

BH PB Normal Hen
Theoretically, half of the cocks produced will be DFRH and the other half will be SFRH (/BH); half of the hens will be RH and half will be BH.


 



 



 



 



 



 

















BH PB Normal Cock×RH PB Normal Hen

BH cock × RH hen
Male Offspring



RH PB Normal Cock























D

a

m

 
S i r e     
  Z Z
Z ZZ ZZ
W ZW ZW

Female Offspring



BH PB Normal Hen
All of the cocks produced will be SFRH, all of the hens will be BH.


 



 



 



 



 



 

















RH PB Normal Cock×BH PB Normal Hen

DFRH cock × BH hen
Male Offspring



RH PB Normal Cock























D

a

m

 
S i r e     
  Z Z
Z ZZ ZZ
W ZW ZW

Female Offspring



RH PB Normal Hen
All cocks produced will be SFRH & all hens will be RH.


 



 



 



 



 



 

















RH PB Normal Cock×BH PB Normal Hen

SFRH cock × BH hen
Male Offspring



RH PB Normal Cock

BH PB Normal Cock























D

a

m

 
S i r e     
  Z Z
Z ZZ ZZ
W ZW ZW

Female Offspring



RH PB Normal Hen

BH PB Normal Hen
Theoretically, half of the cocks produced will be SFRH and the other half will be BH; half of the hens will be RH and half will be BH.


 



 



 



 



 



 

















BH PB Normal Cock×BH PB Normal Hen

BH cock × BH hen
Male Offspring



BH PB Normal Cock























D

a

m

 
S i r e     
  Z Z
Z ZZ ZZ
W ZW ZW

Female Offspring



BH PB Normal Hen
All cocks produced will be BH & all hens will be BH.


 



 



 



 



 



 

















YH cock × YH hen
 






















D

a

m

 
S i r e     
  O O
O OO OO
O OO OO

 
All birds produced will be DFYH (Note: the head will only appear yellow if the bird is also a genetic red head; if the bird is DFYH and genetically black head, the bird will be black-headed with a yellow tipped beak [BH YTB]).


 



 



 



 



 



 

















YH cock × SFYH (/YH) hen (or visa versa)
 






















D

a

m

 
S i r e     
  O O
O OO OO
O OO OO

 
Half of the birds produced will be DFYH, half will be /YH.


 



 



 



 



 



 

















SFYH (/YH) cock × SFYH (/YH) hen
 






















D

a

m

 
S i r e     
  O O
O OO OO
O OO OO

 
A quarter of the birds will be DFYH, a quarter will not carry any YH at all; the other 50% of the birds will be SFYH (/YH), but there is no visual way to distinguish between /YH and birds not carrying any YH at all.


 



 



 



 



 



 

















SFYH (/YH) cock × non-yellow head hen (or visa versa)
 






















D

a

m

 
S i r e     
  O O
O OO OO
O OO OO

 
Half of the birds will be SFYH (/YH) & half will not carry any YH at all, but there is no visual way to distinguish between /YH and birds not carrying any YH at all.


 



 



 



 



 



 

















YH cock × non-yellow head hen (or visa versa)
 






















D

a

m

 
S i r e     
  O O
O OO OO
O OO OO

 
All birds produced will be SFYH (/YH).


 



 



 

Категория: Об амадинах Гульда | Добавил: elena (14.06.2010)
Просмотров: 1013 | Рейтинг: 5.0/4
Всего комментариев: 0
Добавлять комментарии могут только зарегистрированные пользователи.
[ Регистрация | Вход ]
Путеводитель по сайту