Figure 2From: A fertility restorer gene, Rf4, widely used for hybrid rice breeding encodes a pentatricopeptide repeat proteinRestoration of fertility in transgenic plants with PPR782a . (a) Pollen grains stained with iodine-potassium iodide. (b) Pollen stainability of each transgenic plant. Error bars indicate the standard deviation. (c) Seed setting of the transgenic plant, No. 13.Back to article page