What is the general view of the term and phenomena of "penetrance?" This
refers to differential expression of a phenotype under various environmental
conditions or genetic backgrounds, although the genotype of a plant or line is
the same. It seems to be a rather vague term.
My question arises because I may be seeing differing "penetrance" of
flowering genes in Poa annua due to environment and genetic background.
john0130 at gold.tc.umn.edu