Table 1.

Cross-fertilization assay.

	SlHB8-ox♂ x WT♀	WT♂ x SlHB8-ox♀	2A11-SlHB8♂ x WT♀	WT♂ x 2A11-SlHB8♀
Fruit set	2.70%	93.50%	60.60%	50%
Hybrid number	37	31	33	30
Setted fruits number	1	29	20	15

Emasculated wild type flowers were fertilized with SlHB8-ox pollen and the number of setting fruit [lr1] was assessed at the ripe stage. Conversely, tomato pollen from wild type flowers was used to fertilize emasculated SlHB8-ox flowers. The same assay was also carried out on the 2A11 lines.