Fig. 2

Pollen phenotypes of pagr heterozygotes. Pollen from segregating PAGR/PAGR (a), pagr-1/PAGR (b ), PAGR/PAGR (c) and pagr-2/PAGR (d) plants stained equally with Alexander’s stain indicating that pagr pollen is viable. Scale bars 50 μm. In vitro pollen germination assays show reduced germination rates compared to the wild type (e) for pollen from pagr-1/PAGR (f) and pagr-2/PAGR (g) plants. Scale bars 100 μm