The core Idea behind this technique is to
find what is known as a ‘Donor’ plant. A Donor
plant is one that contains a true breeding
trait (homozygous Dominant) for that trait. The
more lock down traits are homozygous Dominant
the better are your chances of developing an
IBL.
IBL is short for In Breed Line. This does
not mean that the line of genetics will be true
breeding for every trait, but in general this
terminology (IBL) used by breeders does refer
to a strain as being very uniform in growth for
a high % of the strains phenotypes.
Let us use the example of hamster. In a
litter of hamsters we may find that they all
have the same phenotypes. If that population
reproduces and no other phenotypes crop up then
we can consider the fact that these hamsters
come from an In Breed Line. If the hamsters
continue to breed and all show the same traits
without variation then we know for certain that
the gene pool has been locked down.
There are some breeding techniques that you
may like to know about. These techniques can
seriously breach the law of Hardy-Weinberg’s
Equilibrium. Which in our case can be a good
thing because it will reduce a trait in a
population or promote a trait in a population.
