Biosystematics of the tomato

The commercial tomato belongs to a species most frequently referred to as Lycopersicon esculentum Miller. The correct Latin name for this species has been the subject of much discussion which has not been fully resolved. The alternative names Solanum lycopersicum L., or Lycopersicon lycopersicum (L.) Karsten have appeared in the literature. Lycopersicon esculentum was first proposed for the tomato by Miller in 1768, replacing the earlier Linnean name Solanum lycopersicum. However, Karsten in 1900 suggested that Lycopersicon lycopersicum should be adopted. Under the rules of the International Code of Botanical Nomenclature the original specific name ‘lycopersicum’ should have been retained following the creation of the new genus Lycopersicon. The arguments on either side have been most recently summarized by Broome, Terrell and Reveal (1983). These authors conclude that because of its long and popular usage, the name Lycopersicon esculentum Mill. should be preserved. This is the name which will be used throughout this chapter.