Tobacco HMGS-OEs show increased seed yield.

(A) Phenotype of tobacco pods. pSa13, vector-transformed control; “401” and “402”, two independent lines of OE-wtBjHMGS1 and “603” and “606”, two independent lines of OE-S359A. Scale bar  = 1 cm. (B) Total dry weight of 30 tobacco pods. (C) Average dry weight per pod. (D) Total dry weight of seeds from 30 pods. (E) Total seed number per 30 pods. (F) Average seed number per pod. (G) Average dry weight of 100 seeds in control and HMGS-OEs. Thirty independent readings were taken for each line. Values are means ± SD, n = 30. a indicates significant difference between HMGS-OE and the vector (pSa13)-transformed control; b indicates significant difference between OE-wtBjHMGS1 and OE-S359A. H, value higher than the control (P<0.05 or 0.01 by the Student's t-test).