A study of plant domestication and evolution through the taxonomic revision of wild North American Humulus, a phytochemical assay for stimulant alkaloids in Celastraceae, and a phylogeographic analysis of Catha edulis in areas of historic cultivation
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The cultivation of plant species is essential to the survival of humans. The process of artificial selection that is used to modify wild individuals into improved cultivars results in genetic and morphological changes from wild progenitors. In order to understand the evolutionary patterns and processes involved with artificial selection both wild and cultivated populations must be thoroughly studied. Numerous methods are used to study the process of evolution under cultivation such as biology, chemistry, geography, history, linguistics and archeology. The understanding of evolution in a crop ...