Red terror question

  • We are currently upgrading MFK. thanks! -neo
Actually F0 is a term that has come to be known as wild caught on forums such as these but is incorrect. If you look on Jeff Rapps site, he never advertises F0, he lists wild caught. F=familial line as in breeding, so F0 is the starting point of a completely new and diverse gene set by two unrelated parents...then is F1, F2 and so forth. So you see, F1 doesn't necessarily mean from wild caught either. I guess if when you F0 around here though, you know they mean wild caught most of the time simply cause they don't know any better. And to most F1 will mean offspring from wild caught.

Sorry to get all technical. Maybe we should have Jeff Rapps write up a sticky on the subject and post it for all to read. lol
 
That is an excellent set of points balton...

As hobbyists, the advantage to keeping wild caught fish is simply that they come from a very diverse gene pool. Captive bred fish do not have nearly the amount of diversity in the gene pool and, as a result, individuals will begin to show genetic inferiority the further they exist down the captive familial line.


balton777;1061086; said:
Actually F0 is a term that has come to be known as wild caught on forums such as these but is incorrect. If you look on Jeff Rapps site, he never advertises F0, he lists wild caught. F=familial line as in breeding, so F0 is the starting point of a completely new and diverse gene set by two unrelated parents...then is F1, F2 and so forth. So you see, F1 doesn't necessarily mean from wild caught either. I guess if when you F0 around here though, you know they mean wild caught most of the time simply cause they don't know any better. And to most F1 will mean offspring from wild caught.

Sorry to get all technical. Maybe we should have Jeff Rapps write up a sticky on the subject and post it for all to read. lol
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Close Balton, but not totally correct.

It's Filial Generation, not familial. It's a term used in genetics and selective breeding, usually with hybridization.

And F1 is only correct if it is two offspring from the parental generation. I.E. F1 would be the first generation of offspring, then you breed the F1 generation to get the F2 generation, etc. Any new blood added anywhere in the line and that's the new "F0" (we never used the term in genetics, only "P" for Parental generation) or Parental generation.

wikipedia said:
F1 hybrids is a term used in genetics and selective breeding. F1 stands for Filial 1, the first filial generation seeds/plants or animal offspring resulting from a cross mating of distinctly different parental types. The offspring of distinctly different parental types produce a new, uniform variety with specific and/or desirable characteristics from either or both parents. In fish breeding, those parents frequently are two closely related fish species, while in plant and animal genetics those parents usually are two inbred lines. Mules are F1 hybrids between horse and donkey. Crossing specific parent plants produces a hybrid seed (plant) by means of controlled pollination. To produce consistent F1 hybrids, the original cross must be repeated each season. As in the original cross, in plants this is usually done through controlled hand-pollination, and explains why F1 seeds can often be expensive. F1 hybrids can also occur naturally, a prime example being peppermint, which is not a species evolved by cladogenesis or gradual change from a single ancestor, but a sterile stereotyped hybrid of watermint and spearmint. Unable to produce seeds, it propogates through the vining spread of its own root system.
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For all purposes though, in the aquarium world F0 is wildcaught (could be siblings, could be parent X offspring, or could be unrelated) and F1 is the first tank raised generation.
 
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