Fig. 6From: Genome-wide identification and transcriptional characterization of DNA methyltransferases conferring temperature-sensitive male sterility in wheatIodine staining of pollen grains and statistical analysis in different wheat lines. The wheat materials were taken separately from fertile (a, c) and sterile (b, d) conditions. a and b showed the iodine staining data. Scale bar = 18 μm; c and d showed the statistical analysis data. The total pollen counts used were over 240 in every line. a-d on the x-axis represent four different shape-color combinations or types for the iodine-stained pollen grains: a circular, opaque, and dark brown/black; b circular, opaque, or partially transparent and light brown/black; c circular, transparent, and light yellow; and d transparent with an irregular shape and light yellowBack to article page