Figure 3
Total soluble sugar content in anthers and starch staining of pollen grains from wild-type (WT) and PGMS mutant (MT) cotton ( Gossypium hirsutum L.). (A) The total soluble sugar content in different developmental stages. (B, C) Starch staining of (B) WT and (C) MT pollen grains. Data represent the mean and standard deviation from three replications. *P < 0.05; **P < 0.01 according to Student’s t-test. The exact values were shown in Additional file 1.