Fig. 1
Phenotypes and genotypes. a–c Phenotypes of O. rufipogon accession DXCWR, indica variety Guichao 2 (GC2), and the introgression line DIL29, respectively. Panicles of DXCWR, GC2, and DIL29 are illustrated in the respective upper right corners. Scale bars, 20 cm (plant) and 5 cm (panicle). d Graphical genotypes. The gray regions indicate the regions that are homozygous for the DXCWR genome. The white regions indicate the regions that are homozygous for the GC2 genome. e, f Comparison of tiller angle and tiller number of GC2 and DIL29 at different developmental stages. g–k Comparison of plant height, number of primary branches, number of secondary branches and grain number on the main panicle, and grain yield per plant in GC2 and DIL29. Data are means (n = 10), with error bars showing standard deviation. Two-tailed Student’s t tests were performed between GC2 and DIL29 (**P < 0.01)
