>From my observation, DNA comparing research is more fruitful if you are
comparing a wild type organism to a mutant. The DNA library of the two will be
very close except at the mutation site. Therefor, you can find the spot at
which the genes of the mutant differ from the plant without the mutation (wild
type). It's more useful to have plants with slight differences verses those
with huge differences (such as different families, genera, and even species).
JMS