Dissertation Research: Biogeography and Evolutionary Genetics of Stenocereus (Cactaceae)

研究生科尔内霍建议研究热带 柱状仙人掌属狭蜡仙人掌蛋白质电泳 方法，以重建物种水平的进化 关系。 果蝇属的苍蝇和 酵母与特定的仙人掌物种有关， 仙人掌-苍蝇-酵母系统已经是先前的主题， 生态和进化研究。 约20种 这些仙人掌分布在巴拿马河两岸 伊施莫斯和通过加勒比海，和该集团的地理 历史有问题。 拟议的研究 仙人掌的进化史可以与 那些已知的酵母和Drosphila与 仙人掌 拟议中的研究将检验重要的假设 关于人类进化和地理学的历史， 仙人掌，并将开辟一个新的研究领域的共同进化 涉及其他群体的活动。 替代假设将是 测试，其结果将举行的兴趣，为广大观众 植物学家、地理学家和进化生物学家。

Graduate student Cornejo proposes to study the tropical columnar cactus genus Stenocereus using protein electrophoresis methods in order to reconstruct species-level evolutionary relationships. Flies of the genus Drosophila and species of yeast are associated with particular cactus species, and this cactus-fly-yeast system has been the subject of previous ecological and evolutionary study. Approximately 20 species of these cacti are distributed on both sides of the Panamanian Ishthmus and through the Caribbean, and the group's biogeographic history is in question. The proposed research on the evolutionary history of the cacti will allow comparisons with those already known for the yeast and Drosphila associated with the cactus. The proposed research will test important hypotheses concerning the evolutionary and biogeographic history of the cacti, and will open a new area of research on coevolutionary processes involving other groups. Alternate hypotheses will be tested, and the results will hold interest for a wide audience of botanists, biogeographers, and evolutionary biologists.