Figure 3.

Abnormal taf1‐1 segregation results from defects in pollen tube growth.

(a) taf1‐1 hemizygotes display no increased incidence of aborted seeds.

(b) Pollen development is normal in taf1‐1 mutant lines, with tricellular pollen evidence in DAPI‐staining of wild‐type and taf1‐1 hemizygotes. Scale bar represents 20 μm.

(c) Pollen tube growth is defective in taf1‐1 hemizygotes, which display approximately half the number of full‐length pollen tubes relative to wild‐type lines. Error bars represent the SEM of 3 or more replicates of > 10 pollen grains.

(d) Complementation with the wild‐type TAF1 restores pollen tube growth to wild‐type levels. Bar represents 50 μm.