From a genetic point of view, brick red pigeons are very interesting and can be found in many famous lofts, whether short distances, medium distances or long distances. For example, the red Jensen pigeons are descendants of the "Miracle Red", and they are due to the fact that they are not the only ones who have been killed in the red. DeForas was a great success and was famous in the Netherlands. And Belgium van? Horf's Red Nixon, Seaver? Toy's Tarzan, Vanné's Malian, Inbury's Tiger and other red long-distance pigeons. Many pigeon breeders use the dark pigeon as a "bridge pigeon" and an adhesive in breeding. It can be seen that the colored pigeon plays an important role in breeding genetics. The pigeon is different from other pigeons of the feather color, and he has a certain pattern in heredity.
The convention of the colored pigeon
There are two reds in the various feather colors of pigeons, one is the hidden red, which is what we call chocolate. Implicit red can be said to be the representative color of ornamental pigeons, for example, the performance of the hidden red gene can be seen in the rib fighting pigeon and the blowing pigeon. The recessive red gene is not what we are going to discuss now, what we are going to study now is a completely different red, which is the more common red in pigeons, that is, "brick red" or "color".
The significance of the genetic law of the colored pigeon
First, mastering the genetic rules of the pigeon can reduce our detours in the breeding of the pigeon.
Second, mastering the genetic laws of the pigeon, it is easy to make a certain feather color or some of the characteristics of the chain inheritance that we want.
Third, mastering the genetic laws of the pigeon can help us form the pigeon breed that we want to have a specific shape and intrinsic connection.
Fourth, we are familiar with the genetic laws of the pigeon, so that when we introduce breeding pigeons, we can grasp the authenticity of some breeding pigeons that are related to the pigeons.
Fifth, it can enrich our pigeon breeding skills, and the quality of our pigeons has improved.
The type of genetic presence of the pigeon
Before we explore the inheritance of the colored pigeon, let's first understand the research of a biologist: the red determinant and the sex determinant of the color pigeon are located on the same chromosome, so it is related to the sex chromosome, which is a linkage inheritance. The sex of the is determined by two Z chromosomes, while the hens have one Z chromosome and one W chromosome. So, we can represent the cocks as ZZ and the hens as ZW. And because both cocks and hens have a color, so we think that the gene for color should be on Z, we will temporarily represent the red gene as r, then there are three types of pigeons with the deciding factor of crimson:
1. Cocks of the same type, both sex chromosomes have a red determinant, which can be represented by Zr Zr (r represents the red determinant). That's what we call pure red.
2. The of the heterotypic joint has only one sex chromosome with a red determinant, which is represented by Zr Z. This is what we call a hybrid.
3. For red hens, only one sex chromosome with a red determinant is represented by Zr W.
The external characteristics of the purebred (homomorphic) Zr Zr are different from those of the heterotypic male Zr Z, which is manifested in the color of the corners of the mouth, and the homogeneous one is lighter than the heterotypic male, similar to the color of the cheese. The head and part of the neck are silver in color , with wings and tail feathers , and no black spots or stripes.
The sex of the young birds depends on the sex chromosome provided by the hen, if the hen provides a Z, the young bird sex is male, if the W is provided, the young bird sex is female.
We give an example of the inheritance of the red determinant, the red determinant has a linkage with the sex chromosome, here we still use the Unite method to explain, the gene of the is ZZ, the gene of the hen is ZW, if it has a red determinant, then add an r, these results obtained by the Unite method are the average obtained by many lofts, this genetic method can only be said to be an ideal value, if the fancier wants to try such a pairing, may only achieve similar results, And it can't be 100 percent the same.
General genetic patterns of the pigeon
1. The non-purebred male (Zr Z) with the red determinant is paired with the hen (Z W) with the black determinant.
The combination of Zr and Z of the and Z and W of the hens, respectively, will produce four possibilities, the probabilities are: 1/4 Zr Z is a non-purebred with a red determinant, 1/4 of the hens have a ZrW red determinant, and 1/4 Z has a black determinant, and the plumage may be gray, raindrops and black. 1/4ZW hen with a black determining factor. Thus it can be seen that a non-purebred male with a red determinant and a hen with a black determinant will get 50% of the pigeons with the red determinant, or 50% of the pigeons with the black determinant, that is, pigeons of other colors.
Second, the with the black determinant (ZZ) and the hen with the red determinant (ZrW) are paired.
The four possibilities are: 2/4Zr Z non-purebred with red determinant and 2/4ZW hen with black determinant.
Explain that a without a red determinant is mated with a hen with a red factor, and we will get a non-purebred with a red determinant, a hen with a black determinant, and they appear in a ratio of 1:1, and we can use this example to illustrate the sex linkage inheritance. That is what we call the theory of females out of males.
3. Purebred ZrZr with red determinant is paired with female ZW pigeon with black determinant:
There are four possible probabilities of 2/4Zr Z: non-purebred cocks with red determinants, and 2/4ZrW: hens with red determinants.
It shows that a purebred with a red determinant and a hen with a black determinant are mated, and the offspring are all in the group with the red determinant, and the offspring males are all non-purebred Zr Z.
4. Purebred Zr Zr with red determinant is paired with female ZrW with red determinant:
The four possibilities are: 2/4Zr Zr for purebred cocks with a red determinant. 2/4Zr W Hen with a red determinant. Conclusion: A purebred male with a red determinant mated with another red pigeon can obtain a purebred, purebred pigeon with a red determinant, of which the males are purebred.
5. Non-purebred males (Zr Z) with red determinants are paired with hens with red determinants (Zr W).
The four possibilities are: 1/4 Zr Zr is a purebred with a red determining factor, a hen with a red determinant, a hen with a ZrW red determinant, a 1/4 ZrZ non-purebred with a red determinant, and a 1/4ZW hen with a black determinant. Thus it can be seen that a non-purebred male with a red determinant and a hen with a red determinant will get 75% of the pigeons with the red determinant, or 25% of the pigeons with the black determinant, i.e. hens of other colors.
Explain that a non-purebred with a red determining factor is mated with a hen with a red factor, and we will get a with a red determining factor, including a purebred non-purebred, who are 1:1, a hen with a black determining factor, and a hen with a red determinant, and they appear at a ratio of 1:1, that is, if you pair two pigeons with a red determinant, if there are non-colored pigeons in the offspring, then it means that, first, the male pigeons are not purebred pigeons, ii. The offspring that came out should be the hen.