F1 Strain

[oldhippiedad]

I see the terminology "F1" strain in some descriptions. I did a search here for this but cannot find it or missed it. Anyway, what is the definition of "F1"? I read somewhere to avoid the "F1" strains but there was no explanation on why to avoid. Any advice would be appreciated. Thanks to all who said welcome on my introduction to the forum!!!

 

[Mountain_Homegrown]

means 1st Pheno as in first round of breeding .. Usually the genetics are very unstable at this point .. F2's and 3's are more stable then the F1's

 

[oldhippiedad]

Thanks for the information. Best for me to stay away from the F1.

 

[Hick]

whoa..whoa..WHOA!....
P1XP1=F1 hybrid, which will "usually" express a near even split 50/50 of characteristics of both parents. (also appearing more uniform)
F1XF1=F2 hybrid, which will "usually" express several different phenotypes, each showing/dominated by different chacteristics of both parents.
F2 is where most breeders begin a selection process, from the multiple pheno's.
..only through several generations of "selective" breeding and backcrossing for specific characteristics, will a strain become "stable".
F3,F4,F5 will only become more table "if" the selection and breeding process is done correctly.

hXXp://www.dobermann-review.com/info/genetics/mendels_genetic_laws1.htm
hXXp://www.dobermann-review.com/info/genetics/mendels_genetic_laws2.htm
hXXp://www.hobart.k12.in.us/jkousen/Biology/psquprac.htm