2ANONYMOUS
Well-Known Member
Look at it this way with each of the subsequent self-pollinations, youre going to limit the available genome, bottlenecking the genetics. This is how you stabilize a trait , if done carefully. Bx ing
But, suppose you take it to the s3 generation, and you have two moderately different expressions, and decide to cross them. Youre only really un-doing the generation
lets assume you use the s2 generation, All you get is a limited expression of the s1 gene pool...quite the opposite of an f1.
if you do it at the s3 level, youll get a more limited picture of the s1 gene pool.
the problem from these "shallow" crosses is that youre not diversifying enough from the original p1 genome. thus, youre only going to achieve a fraction of the p1 genome in return.
But, suppose you take it to the s3 generation, and you have two moderately different expressions, and decide to cross them. Youre only really un-doing the generation
lets assume you use the s2 generation, All you get is a limited expression of the s1 gene pool...quite the opposite of an f1.
if you do it at the s3 level, youll get a more limited picture of the s1 gene pool.
the problem from these "shallow" crosses is that youre not diversifying enough from the original p1 genome. thus, youre only going to achieve a fraction of the p1 genome in return.