So pretty much every time you cross something for the first time it will have heterosis? That goes against what I had previously thought of as fundamental fact. Oh well, if you are right then that “fundamental fact” is getting tossed in the garbage. Viva knowledge!
But I think a lot of confusion comes from there not being a distinction between hybrid and polyhybrid. It seems necessary to distinguish between them for the sake of clarity. I’m sure that you disagree and I would love to hear it explained.
From what you are saying it makes me think that the F1 hybrids become P1 the moment you cross them. Is that true?
I’m confused on this. (F1ab x F1ac) crossed with (F1bc x F1cd) is not an F2, or in @Sebring’s notation H2? This seems like an example of clarity becoming very important. For example:
P1a x P1b = F1
F1a x F1b = F1ab
F1ab x F1cd = F1abcd
F1a x F1a = F2a
F1ab x F1ab = F2ab
So if I’m not mistaken (I am most likely mistaken:frowning2:) then it appears that F1abcd has several magnitudes more variation than F2a, and F2ab has more variation than F1. So simply saying that F1 or F2 has less variation is not correct as either can have more or less variation, depending. Does using the term H1, H2 and so on to define a polyhybrid make sense in this case, for the sake of clarity? Or is that just completely wrong?
Damn this is confusing and I think I might be overthinking it.