Figures

- Domestication to Crop Improvement: Genetic Resources for Sorghum and Saccharum (Andropogoneae)

Click image to enlarge

Figure 1   Time-line displaying the changes in Sorghum nomenclature over time. ¹House et al. (1995); ²Spangler (2003); ³Smith and Frederiksen (2000); ⁴Garber (1950); ⁵Lazarides et al. (1991); ⁶Hodnett et al. (2005), Price et al. (2005a); ⁷Dillon et al. (2007).

Click image to enlarge

Figure 2   Growth trial of Sorghum species at seedling stage. Note the broader leaf (far left) of the Eu-sorghum, S. propinquum compared with the Para-Sorghum, Stiposorghum and Heterosorghum species.

Click image to enlarge

Figure 3   Variation in Sorghum species seed and caryopsis morphology and size. Letters on the figure denote different species: a–e, S. bicolor caryopsis AusTRCF 322649, 322618, 322620, 322666 and 322611, respectively; f, S. propinquum; g, S. halepense; h, S. macrospermum 322277 seed and caryopsis; i, S. laxiflorum 302503 seed and caryopsis; j, S. grande 302580 seed; k, S. leiocladum 300170 seed and caryopsis; l, S. matarankense 302521 seed and caryopsis; m, S. nitidum 302539 seed; n, S. timorense 302660 seed and caryopsis; o, S. purpureo-sericeum 321134 seed and caryopsis; p, S. versicolor 321126 seed and caryopsis; q, S. amplum 302623 seed and caryopsis; r, S. angustum 302604 seed and caryopsis; s, S. brachypodium 302480 seed and caryopsis; t, S. bulbosum 302646 seed and caryopsis; u, S. ecarinatum 302661 seed; v, S. exstans 302577 seed and caryopsis; w, S. interjectum 302563 seed; x, S. intrans 302390 seed and caryopsis; y, S. plumosum 302489 seed and caryopsis; z, S. stipoideum 302644 seed.

Click image to enlarge

Figure 4   The left-hand column shows the variation in the central endosperm and the right-hand column compares the outer layers. (A, B) Representative images of S. bicolor, showing the standard floury and vitreous endosperm, respectively. (C–H) Images from outside the Eu-Sorghums are representative of the variations observed across the species. PB, Protein bodies; M, matrix; S, starch granule; D, indentations left by protein bodies; C, channels; P, pores; CG, small polygonal starch granules forming compound granules.

Click image to enlarge

Figure 5   Novel sub-aleurone morphology of the Para-Sorghums and Stiposorghums: (A) the characteristic S. bicolor outer endosperm and pericarp; (B) an increased magnification of the sub-aleurone layer itself; (C) a representative image of the novel morphology found in the undomesticated sorghums; (D) and (E) magnified features of the morphology shown in (C). SA, Sub-aleurone layer; A, aleurone; PB, protein bodies; M, matrix,; S, starch granule; D, indentations left by protein bodies; P, pericarp; CG, small polygonal starch granules forming compound granules.