Fig. 6: Morphology and abiotic stress tolerance traits in diploid parents, F1 hybrids, autotetraploids, segmental allotetraploids and selected TRILs.
Diploid parents are Nipponbare and 9311, reciprocal diploid F1 hybrids are N9 and 9N, autotetraploids of diploid parents are NPB-4X and 9311-4X, and reciprocal S1 segmental allotetraploids are NN99-S1 and 99NN-S1. a, Overall plant architecture showing plant height, tiller number and tiller angle. b, Illustration and quantification of primary (N) and secondary (n) branch numbers per panicle. c, Fertility per panicle, or the relative amount of filled (top) vs empty (bottom) kernels of a given panicle taken from each of the studied rice plant groups. d, Grain length and grain width. e,f, Illustration of traits reflecting tolerance to two abiotic stresses, 150 mM NaCl (e) and chlorate (2 mM KClO3) (f) by the various rice plant groups. g–i, Quantification of yield per plant (g) and survival rate after salt stress (h) or chlorate treatment (i). Data are means ± s.e.m. Black dots represent individual data points. Different red letters above each histogram indicate statistically significant differences among the various genotypes based on two-sided one-way ANOVA followed by a post-hoc LSD test (P < 0.05), and sample sizes are provided in Supplementary Table 25.
