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SL Dominant Greywing - is Incomplete dominant. When this mutation first appeared, some people, including me, immediately remembered the Dominant edged mutation.
They are so identical that some people think that SL Greywing is the new name of Dominant Edged, like the new naming that happened in American Parblue to Blue1Blue2.
Naturally, many feel that they have a greywing mutation in their Aviary. The bird they used to consider Dominant edged suddenly had a Greywing label.
In terms of phenotype between SL Greywing and Dominant, edged slightly resembles. Birds have a dark hue on each edge of the plumage, and flight wings are grey or silver. This characteristic happens to what we used to know as Dominant-edged.
Almost all characteristics of the Dominant Edge are present in greywing. Especially when the SL Greywing mutation is already a combination with the Blue series lineup.
There are still some differences between SL Greywing and Dominant-edged in the green series.
You can read it in the article SL Dominant Greywing Lovebirds Mutations.
In fact, the difference is in MOI (Mode Of Inheritance). You already know that Dominant edged is Incomplete Dominant.
While in SL, Greywing is SL (sex-linked) Incomplete Dominant.
The breeding test of Agapornis Dominant edged is Greywing or not at all
You can use genetic calculators from lineolated parakeets to reference breeding tests.
Because that's where the SL Greywing mutation is already present and has been officially registered as a mutation with the name "dominant Dilute."
Case 1: If you have a Dominant edge, SF suspected of being Greywing is male.
This breeding test is far from the characteristics of Dominant edged, where if You have a pair of 1.0 Green Dominant edge SF X 0.1 Green You get
50% Dominant edged SF and 50% Green.
Because it is characteristic of Incomplete Dominant, the same as the case on Violet Factor.In lineolated parakeet and Agapornis Eyering, greywing females will always look lighter than males.
It's like the DF phenotype (Double Factor), but the genotype they are SF (Single Factor)If up to the 3rd production period does not find edge chicks or light phenotype greywing with female genitals, the bird is dominant Edge.
The result will be different if the male You have is Dominant edged DF. It will be even more complicated because chicks will be
100% 1.0 Dominant edged SF
100% 0.1 Dominant edged SF.Between dominant-edged DF and SL Greywing females, Dominant edged DF always leaves the base colour on the tail feathers. This is different from female SL Greywing.
You can only analyze from phenotypes:
If the male parents You have are dominant-edged, then the chicks of males and females are SF phenotypes. It should be that the chicks will have identical phenotypes.
If the male parents You have are Greywing, they should be DF phenotype hens or
lighter than the male color.
Due to the characteristics of SL
Greywing, males and females have a difference in reduction intensity, with
females with a reduction of 70% - 75%.
Case 2: If You have a Dominant edge suspected of being greywing is Female.
When the female is crossed with green, it should be 100% Greywing green and 100% Green male chicks. If there is one male chick with a Green phenotype, the female parent is Dominant edged.
Or they produce hens with Dominant edge phenotypes or resemble greywing, then it can be ascertained that the bird is Dominant Edge.You can also use crossing with SL (Sex-Linked) birds. For example, You take the case of crossing with Opaline SL (Sex-Linked) Recessive.
Choose a Male Opaline to cross with the dominant Edge of the female that You suspect to be greywing.
You must have found male chicks from that cross with Greywing/opaline phenotypes. While the hen chicks phenotype opaline without the combination of Edge. "I hope you can distinguish true opaline between opaline edge."
Suppose you find a Dominant edge phenotype male chick and a dominant edge opaline female.
It can be ascertained that the female bird that You suspect to be Greywing is Dominant Edge DF and not Greywing.Because basically greywing females, there is no double factor as in the dominant Edge. Greywing DF is only found in males on both lineolated parakeet and Agapornis Fischer, and it is final.
Although female Greywing Phenotypes look like DF(Double Factor), their Genotype condition is SF (Single Factor)
Greywing Characteristic
The way of inheritance is the dominant sex link (SL) so that only males have SF and DF phenotypes.
Female phenotype is always SL-SF (Single Factor) or homozygous with full mutation expression.
If you have Greywing with minimal phenotype expression of the mutation, it can be ascertained that the male does not need to perform DNA sexing.
If you have a Greywing with a full phenotype expression of the mutation, there are two possibilities between a Greywing DF male and a Greywing female. And it may be necessary to do DNA sexing.
But if you have been working with greywing mutations for a long time, you can quickly tell the difference. That the female Greywing phenotype will be lighter than the male Greywing DF.
Gen Calc Lineolated Parakeet
As a simulation of fellow SL (sex-linked), You can also use the Genetics Calculator on a lineolated parakeet.
- Our male table column selects SLino (Sex-linked Recessive)
- Our female
table column selects dom. Dilute-edged (Sex-linked Incomplete Dominant)
Then, You click on the generate button.
The pair will produce 100% 1.0 green dom dilute/ino and 100% 0.1 ino. The
simulation was identical to the cross-experiment between opaline x greywing on
Agapornis Fischer.
In lineolated parakeet and Agapornis Fischer,
greywing has phenotype differences between males and females.
You can try to prove it in your bird's cage, but the fact is that it is complicated to get a female dominant-edged, including people who are lucky if you have a dominant-edged female in your Aviary.