A transgenic crop plant contains a gene or genes which have been artificially inserted instead of the plant acquiring them through pollination. The inserted gene sequence (known as the transgene) may come from another unrelated plant or from a completely different species. In many cases, the inserted DNA has to be modified slightly in order to correctly and efficiently express in the host organism. The pomato is a chimera produced by grafting a tomato plant and a potato plant, both of which are members of the Solanaceae family. Pomato plants make food production more efficient, as they maximize the amount of crops that can be produced on a piece of land. In addition, grafting can improve resistance to bacteria, viruses and fungi, attract a more diverse group of pollinators and provide a sturdy trunk for delicate ornamental plants.