Fig. 4.

Overexpression of qPE9–1 in high-yield rice Wuxianggeng 9 affected multiple agronomic traits. a Grains and brown rice of WXG9 and three overexpressing lines, WXG9-OE1, WXG9-OE2, and WXG9-OE3. Bar = 1 cm. b Panicles of WXG9 and three overexpressing transgenic lines. Bar = 5 cm. c-l Comparisons of qPE9–1 expression level (c), plant height (d), panicle length (e), grain number per panicle (f), panicle number per plant (g), grain length (h), grain width (i), grain thickness (j), 1000-grain weight (k), and grain yield per plant (l), between WXG9 and three overexpressing lines. Data are shown as means ± SDs (n = 15). Student’s t-test: *P < 0.05; **P < 0.01; ns, not significant