We investigated seven octoploids that represent three
subspecies of F. chiloensis and three subspecies of F. virginiana,
and found that each of the octoploid taxa
shared common 5S and 25S rDNA site numbers, which were two and ten, respectively (only data for two representative
taxa are shown here, in Figures 3G and 3H).
These numbers for both 5S and 25S rDNA sites were
much less than the anticipated multiples (eight and
twenty-four, respectively) of those in most diploids. In
addition, no double-marked chromosomes were
observed.