F0, F1, F2 etc.

[afnaveils]

Hi everyone,

I have a question that may sound elementary for many of you and yet I don't know the answer. For a starting breeding pair, we call these parents F0. Their offsprings are called F1 and the offsprings of these F1 are F2.

What do we call the offsprings when F1 is crossed back to F0? Would they still be F2? By extension, F3 back to F0, etc...

Gerard

[bekko]

Gerard, they often call it 'P' (as in parent) generation instead of F0.

An F2 is, by definition, offspring from a cross of two F1 parents. An F3 is, by definition, an offspring of two F2 parents. So, if you cross an F1 back to a parent, their progeny are not F2, F3 or F-anyhing. I don't think they have a name for them other than writing "P x F1".

-steve

[afnaveils]

Yes, P is right instead of F0. I saw F0 somewhere and it stuck into my mind, sorry. Thanks for the answer!