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Pollen grains of gpr1 mutants are pale in color. (A,B) Flower from Col wild type and gpr1-1 mutant. (C,D) Pollen grains collected from Col and gpr1-1 mutant. (E,F) Flower from Ler wild type and gpr1-2 mutant. (G) Pollen grains collected from Ler and gpr1-2 mutant. Note pollen grains of gpr1-1 and gpr1-2 are pale compared with those of the wild type.
