DNA Content (C-Values), Chromosome Numbers, and Mating System of Medicinal, Aromatic, and Stimulant Plants

The chapter summarizes genetic and breeding basics of 2255 medicinal, aromatic, and stimulant plant species. This special plant group contains very different species from all plant families. The DNA C-value is one of the basics for several molecular methods. The gametophytic and sporophytic chromosome numbers show the ploidy level and support selection of an appropriate breeding method. Another important prerequisite to effective breeding work is basic knowledge of flower and pollination biology of the respective species. The compilation can serve as a stepping stone for planning new breeding projects.