Figure 2

Morphology of fruit, seed, and embryo tissues in the donor and autopolyploid lines. A–D, Mature fruits of diploid H. monacanthus (A), autotetraploid line D-27 (B), allotriploid S-75 (C), and autohexaploid line D-2.3 (D). E–H, Black seed separated from the pulp of diploid H. monacanthus (E), autotetraploid line D-27 (F), allotriploid S-75 (G), and autohexaploid line D-2.3 (H). I–L, Embryo removed from black coat seeds of diploid H. monacanthus (I), autotetraploid line D-27 (J), allotriploid S-75 (K), and autohexaploid line D-2.3 (L).