F1 F2 etc....

[Discus-n00b]

Ok i've seen a lot of this F1 F2 stuff and was wondering what does it mean?

Like F2 Red Spotted Green........what is the F2 for?

Newbie here!! :D Thanx

Here is the link to exact the same Question

http://forum.simplydiscus.com//index.php?board=6;action=display;threadid=11000;st art=0

HTH

Ronald

[Bill_P.]

Its a good question!!!

One that alot of people have a hard time grasping. I wish i could explain it.

That threads is informative though.


Bill

[Carol_Roberts]

Here is the answer - Thanks Willie
In genetics, the terminology is used to define the genetic inheritance pattern resulting from specific crosses.

F0 is almost always a pure breeding line, that is, homozygous at every loci. Occasionally, the F0 line may be related. However, they are always true breeding.

F1 is a hybrid resulting from two different F0's, therefore heterozygous at every loci where the F0's differ. All the F1s are identical.

F2 from that cross refers to the progeny of F1's. They will segregate for all F0 combinations. F2 is where new gene combinations are expressed. Crossing F1 to an F0 produces a backcross, not an F2.

Are any of these statements true when discus breeders talk about their crosses? Very rarely so. Thus, it represents incorrect usage.

Is this terrible? No, its just a hobby.

Willie

[Discus-n00b]

Thanx everybody.....really helped me out!