BX4 vs F5

[Luckyluciano744]

Hey Guys,

Which of those lines will produce the most stable traits expressions?

Thanks for all the help guys.

 

[mudballs]

the Bx4 will produce the most stable
it's a trick question sort of because they both have heterosis of just 3.1% at either Bx4 or F5(offspring)



but the Backcross "removed" genetic diversity, it wasn't selected out and further reduced, it was removed...it's gone...that's why you get 96% homozygous population after just 4 backcross pairings. you will see less variety because it's just not there to display "pheno expression".
theres a formula used for this stuff that will cook ur brain, so it's just easier to look at charts where someone has already simplified the math
but when you play with multiple outcrosses and stock, things get unfriendly rapidly but im including for those more technically inclined
(2n–2) / (2n–1)
***Formula: ___% mated with ___% (add percentage of each) = ___ + ___% = ___ (divided by 2, because both parents contribute) = ___% of resulting offspring.

 

[TheWholeTruth]

Usually peaks at bx 5

 

[Luckyluciano744]

the Bx4 will produce the most stable
it's a trick question sort of because they both have heterosis of just 3.1% at either Bx4 or F5(offspring)
View attachment 5042188
View attachment 5042189

but the Backcross "removed" genetic diversity, it wasn't selected out and further reduced, it was removed...it's gone...that's why you get 96% homozygous population after just 4 backcross pairings. you will see less variety because it's just not there to display "pheno expression".
theres a formula used for this stuff that will cook ur brain, so it's just easier to look at charts where someone has already simplified the math
but when you play with multiple outcrosses and stock, things get unfriendly rapidly but im including for those more technically inclined
(2n–2) / (2n–1)
***Formula: ___% mated with ___% (add percentage of each) = ___ + ___% = ___ (divided by 2, because both parents contribute) = ___% of resulting offspring.

Wow! Great info! Thanks very much for the Info bro!