Fig. 3From: Analysis of small RNAs revealed differential expressions during pollen and embryo sac development in autotetraploid riceAbnormalities during embryo sac development in 02428-4x. (a, b) functional megaspores degeneration (green arrow). (c) abnormal mono-nucleate embryo sac (green arrow). (d, e, f) embryo sac degeneration (green arrow). (g, h) abnormal position and number of polar nuclei (green arrow). (i) double ovules (green arrow). Bars = 40 μmBack to article page