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Fig. 4 | BMC Plant Biology

Fig. 4

From: Phenotypic and genetic characterization of tomato mutants provides new insights into leaf development and its relationship to agronomic traits

Fig. 4

Characterization of the wiry-like-1527 (wl-1527) tomato mutant. a-b In mutant plants cultivated both in vivo (a) and in vitro (b) only the first leaves exhibit a slight expansion of the leaf blade at its terminal end, while subsequent ones display a shoestring shape. c Primary root development of wl-1527 is not affected but the growth of lateral roots is significantly delayed. d In plants of wl-1527 cultivated in vitro early flowering in the shoot apex was observed after just 3 weeks of incubation. e-f Early development of a terminal inflorescence is also observed in greenhouse-grown plants. g The loss of apical dominance due to early development of a terminal inflorescence promotes axillary branching, giving the adult plants a shrub appearance (right), totally different from that of a wild-type tomato plant (left). h wl-1527 plants develop branched inflorescences, which alternate vegetative and reproductive organs and have a large number of flowers. i-j wl-1527 flowers have thread-like sepals and petals (i), a badly fused anther cone (i), and a style generally curved downward (j). k In most cases, the ovary bifurcates and develops vegetative ectopic structures that emerge from the ovules or internal tissues. l The fruits of wl-1527 are small and have placental tissue but lack seminal rudiments. Bar = 1 cm; (i-k) Bar = 1 mm

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