Wild species
Including Solanum lycopersicum, there are currently 13 species recognized in Solanum section Lycopersicon. Three of these species – S. Cheesmaniae, S. Galapagense, and S. Pimpinellifolium – are fully cross compatible with domestic tomato, four more species – S. chmielewskii, S. habrochaites, S. neorickii, and S. pennelli – can be readily crossed with domestic tomato though with some limitations, and five species – S. arcanum, S. chilense, S. corneliomulleri, S. huaylasense, and S. peruvianum – can be crossed with domestic tomato with significant difficulty usually requiring em…