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Fig. 1 Pollen grains or anthers of fertile or male-sterile, female-fertile soybean plants. (A) Well-stained robust pollen grains with three colpi from fertile plant. (B) Whole anther devoid of pollen grains from MSM-1 plant. (C) Pollen grains with dark-staining clusters from MSM-2 plant. (D) and (E) Aborted pollen grains with shrunken cytoplasm and lightly stained cell wall from MSM-3 plant. (F) Whole anther devoid of pollen grains from MSM-4 plant. Bars for Fig. 1A, 1C, and 1E = 25 µm, and for Fig. 1B, 1D, and 1F = 100 µm
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