Dissertation Research: Systematics and Evolution in Calochortus (Liliaceae)

研究生布莱恩·内斯，在 华盛顿州立大学的道格拉斯·索迪斯博士 将研究马里波萨的几个物种群 百合属，Calochortus。 形态学、生物化学和 染色体多样性的属提出了挑战性的问题， 物种的识别和进化的决定 他们之间的关系。 奈斯先生将使用现代分子技术 同工酶和核糖体分析方法， 叶绿体DNA，以衡量基因组差异之间 物种，并确定祖先物种的 高染色体数目（多倍体）分类群。 生化数据将是 与形态学和染色体信息整合在一起， 更新的分类处理这些北美西部 植物 本文将几种分析方法结合起来， 进化多样性的研究构成了一个模型程序， 系统研究。

Graduate student Bryan Ness, under the supervision of faculty adviser Dr. Douglas Soltis of Washington State University, will study several species groups in the mariposa lily genus, Calochortus. Morphological, biochemical and chromosomal diversity in the genus pose challenging problems for the recognition of species and the determination of evolutionary relationships among them. Mr. Ness will employ modern molecular methods for analysis of isozymes and of ribosomal and chloroplast DNA in order to measure genomic differences between species, and to determine progenitor species for the high-chromosome number(polyploid) taxa. Biochemical data will be integrated with morphological and chromosomal information in an updated taxonomic treatment of these western North American plants. The combination of several analytical approaches in the study of evolutionary diversity constitutes a model program of systematic research.