Figure 4.

Differential Impacts of tkpr Mutations on Plant Fertility.

The inflorescences of different Arabidopsis genotypes are shown. Compared with Col-0 wild-type siliques that are filled with seeds, those of tkpr1-1 are empty (arrows), and this line is sterile. By contrast, tkpr1-2 inflorescences bear three types of siliques: some are filled with seeds, some are completely empty (arrows), and a third category contains only a few seeds (arrow heads), thus revealing a semisterile phenotype. Mutations in TKPR2 did not affect fertility, as shown here for tkpr2-1.

[See online article for color version of this figure.]