Is it ok to breed son back to mom?

[jimbo2412]

?

 

[LeapinLizards]

Yes, it's line breeding. Some people don't do it at all, some do it limited times, then outcross to keep the genetics strong.

 

[combadao]

I see no reason for not doing it, you just have to outcross sometines, along the line.

What is essential is that the community can have something near the wild type to use as an outcross.

 

[gators0204]

Last I read I belive you can do seven generations down the line but I don't remember where I read that or if I remember correctly. But you can to a certain point.

 

[Sunrise Reptile]

On this forum, I don't think you'll see many breeders recommend more than three generations of line breeding between outcrossings. Myself included! :main_yes:

 

[combadao]

Last I read I belive you can do seven generations down the line but I don't remember where I read that or if I remember correctly. But you can to a certain point.

I really doubt that the number of generations has a scientific explanation. It is more of a educated guess.

 

[gators0204]

like i said, if i remember correctly, which I probably don't. I breed, I wouldnt go this far down the line and I wasnt recommending it.

I don't believe it was a educated guess, at a certain point they will have mutations. Whatever it was that I read was like ten years ago, it just stuck in my head.

 

[Ga_herps]

I usually only do 3 to 4 generations if its a morph combination I am trying for, but no more then that. I usually have 2 pairs, or trios going to spread out the bloodline a little further so linebreeding is kept to a minimum.

 

[combadao]

like i said, if i remember correctly, which I probably don't. I breed, I wouldnt go this far down the line and I wasnt recommending it.

I don't believe it was a educated guess, at a certain point they will have mutations. Whatever it was that I read was like ten years ago, it just stuck in my head.

I was not trying to argue.

Of course mutations will happen, they probably occur every generation, but most of them are not deleterious (you don't see any effect).

With the present knowledge it is impossible to know the average number of generations that you can safely inbred without harm.

What we know is that it is not good and that the far we go the worse it gets. Most people feel safer with 3/4 and not with 7 or similar.

If you think about it, it also depends on the starting genetic diversity of the animals. It is very different to inbred leos from line breeding projects than to inbred wild leos.

So, people don't know for certain, the wiser and most responsible are just playing safe.

Feel free to correct me, if you think I'm wrong.

 

[gators0204]

I guess your not understanding my post. Oh well, this is why I hate forums of any kind.

 

[combadao]

Ok, don't stress about it.

 

[gators0204]

I'm not, I'm cool:main_thumbsup:

 

[arief]

Yes, it's line breeding. Some people don't do it at all, some do it limited times, then outcross to keep the genetics strong.

Line breeding? I thought it's considered as inbreeding?

Line Bred is for example; You are breeding 3 colonies of LG (different parents, same strain) and the prettiest offsprings of each colony are bred with the other.

Inbred is when you breed offspring to parent or siblings.



Cheers

 

[cindre2000]

Either way. Line breeding can mean both. But essentially you are breeding related individuals to heighten a certain trait that they exhibit. But a good breeder should probably spread out the genetics by having multiple distinct groups, rather than just breeding back to the parents.

 

[ElapidSVT]

i seem to recall reading somewhere that father/daughter combinations are superior to mother/son... not sure where. Probably in a population genetics text though.

Hartl and Clarke, Principles of Population Genetics is a good read

 

[cindre2000]

The only reason that sex should matter, would be sex linked disorders/mutations (also known as X-linked), etc. Which usually pop up as needing to be homozygous to be deleterious. Thus, the males, having only one X chromosome always shows that gene since he is always homozygous. Thus, if you cross the normal father, with the heterozygous daughter, you have a lower chance of passing on that gene.

But as far as I know there should be no benefit beyond that. The daughter is still 50% related to the father, just as the son is 50% related to the mother.

 

[artgecko]

Do Leopard Geckos have sex chromosomes? I thought sex was determined by temperature. I don't think they have XX / XY chromosomes like mammals.

 

[CSMGecko]

I will be line breeding or inbreeding (whatever you want to call it) next year with one trying to get the Snow Raptor. I think it should only be about 2 gens that should be interbred together. Then an outsider should be brought in. I would try for a Super Raptor from the same male that I am using this year if I can produce a nice Snow Raptor female from this breeding season, but after that I would stop and try a different route if I didn't get a desired result.

Is this type of breeding idea wrong in anybodies opinion?

 

[Taquiq]

Never mind.

 

[mariex4]

i dont get this so what happens in the wild surely they mate sister ,mother ,brother to sister etc so why cant you do it in captivity i dont want to argue but im just unsure and for me is a learning progress to finding out more as when my leos are old enought and everything is ok im hopeing to breed