Expanding Gene Pool of Line Bred Fish

[jred]

Wondering what people think about mixing line bred species. I am talking about certain traits which have been developed from line breeding, not hybridized fish like Dragonbloods or OB peacocks.

The thought came to me when I was thinking about these line bred which involve a select gene pool - should breeders be introducing new genes then line breeding the trait out again? For instance, if you have a white knight ahli which is 5 generations same genes, should you introduce some regular ahli to expand the genes then use the best of the fry to start new "refreshed" line? Would this totally destroy the trait?

Cheers

[Ron]

Yes, if you were to mix in some genes from a non-line bred variant, you'd need to spend some generations thereafter refining back to the specific line bred individuals you bad before.

For some species which grow faster, this isn't as bad, but as for myself, I've tried this before and found I do not have the patience to breed generations back to back to back over a period of years. I lose interest.

The very nature of line breeding leads to weak genetics and comes with the territory IMO.

[GrizzlysDad]

Yes, if you were to mix in some genes from a non-line bred variant, you'd need to spend some generations thereafter refining back to the specific line bred individuals you had before.


The very nature of line breeding leads to weak genetics and comes with the territory IMO.

x2

The alternative would be introducing non-related offspring that have also been line bred for the same traits.

[jred]

Ya you guys confirmed what I was thinking - I know it could take years to isolate a particular gene. If we could get them to grow faster it might be feasible before getting bored haha

[Ron]

I think with guppies, etc, it would be an easier mountain to climb.