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Table 2 Fruit developmental landmarks.

From: Integration of tomato reproductive developmental landmarks and expression profiles, and the effect of SUN on fruit shape

Fruit Development Landmarks

Days post anthesis

Descriptions of fruit development in tomato

  

Fruit growth (Gillaspy et al1993)

Embryo/seed development

(1) Anthesis

0

Mature ovary, phase I.

Mature gametes. Pollen is shed, which will land on the stigma and germinate. Pollen tubes growth through the style.

(2) Fertilization

1–2

End of phase I, beginning of phase II.

Fusion of sperm and egg nuclei.

(3) 4–16 Cell Stage Embryo

3–6

Phase II and III, cell division and elongation stage.

First embryo divisions.

(4) Globular Stage Embryo

6–10

Phase III, cell expansion stage.

Globular embryo.

(5) Heart Stage Embryo

10–12

Phase III, cell expansion stage.

Heart Stage embryo lasts approximately one day and occurs 10–12 dpa.

(6) Torpedo Stage Embryo

13–16

Phase III, continued fruit enlargement.

Torpedo Stage embryo lasts approximately one day and occurs 13–16 dpa.

(7) Coiled Stage Embryo

20

Phase III, continued fruit enlargement.

Cotyledon expansion and curl as they elongate. Embryo appears physically mature, but the seed is not yet viable.

 

20–28

 

Seed maturation period

(8) Seed germination

29–31

The fruit has reached the mature green stage. Fruit becomes sensitive to ethylene.

Seeds are becoming viable for germination.

(9) Fruit ripening

33–40

Ripening starts at the onset of the breaker stage. Changes in pigmentation are visible.

After ripening of seed.

(10) Ripe Fruit

40

Red ripe stage of tomato.

 
  1. Timing of the fruit landmarks in S. pimpinellifolium LA1589.