Prunus: A plant genus in the family ROSACEAE, order Rosales, subclass Rosidae. It is best known as a source of edible fruits such as apricot, plum, peach, cherry, and almond.Ilarvirus: A genus of the family BROMOVIRIDAE which infects mainly woody plants. Species are divided into ten subgroups. Tobacco streak virus is the type species.Rosaceae: The rose plant family in the order ROSALES and class Magnoliopsida. They are generally woody plants. A number of the species of this family contain cyanogenic compounds.Pygeum: A plant genus of the family ROSACEAE. Bark extract of P. africanum is an ingredient of folk remedies to treat PROSTATIC HYPERPLASIA.Rosales: An order of the ANGIOSPERMS, subclass Rosidae. Its members include some of the most known ornamental and edible plants of temperate zones including roses, apples, cherries, and peaches.Fruit: The fleshy or dry ripened ovary of a plant, enclosing the seed or seeds.F-Box Motifs: Protein structural motifs that play a role in protein-protein binding. The motifs are comprised of approximately 50 residues. Their name derives from the fact that they were found in cyclin F.Amygdalin: A cyanogenic glycoside found in the seeds of Rosaceae.Self-Incompatibility in Flowering Plants: One of many different processes which occur in ANGIOSPERMS by which genetic diversity is maintained while INBREEDING is prevented.Hydrogen Cyanide: Hydrogen cyanide (HCN); A toxic liquid or colorless gas. It is found in the smoke of various tobacco products and released by combustion of nitrogen-containing organic materials.Plum Pox Virus: A species of the genus POTYVIRUS that affects many species of Prunus. It is transmitted by aphids and by infected rootstocks.Fragaria: A plant genus of the family ROSACEAE known for the edible fruit.