BASIC COMPATIBILITY IS A SPECIALIZED EVOLUTIONARY
Basic compatibility - adapatation of
a fungal race or species to a specific host
When basic compatibility exists, pathogen
must be able to
Evolution tends towards specialization
grow efficiently in host's "environment"
overcome or evade host defenses
Changes in host create consitions unsuitable
Pathogens of one species well adapted
to defenses of the host, but NOT to defenses from other plants.
Thus, it may be better to use genes from other species
for genetic engineering in Brassica, or to use Brassica genes
in other species.