Pedigree of T. pusilla families. The
parental generation (F0) comprised the
field-grown plants from which TA136 seeds were collected. Generation
F1 were plants germinated from TA136 seed and
assayed in vitro for DMBQ responsiveness. After screening, selected
plants were rescued from the assay plates and grown to maturity in
soil; these individuals were given the pedigree numbers TP-2207 to
TP-2214. Seeds were harvested from individual, self-pollinated plants.
This second generation (F2) was similarly
screened for responsiveness to DMBQ, transplanted to soil, and
self-pollinated. The F3 generation was assayed in
the same way. Pedigree numbers that follow a solid line represent
individual plants. The numbers in parentheses that follow a dashed line
represent the number of siblings that were analyzed, but not
subsequently rescued.