01:119:115 Lecture Notes - Lecture 22: Carl Linnaeus, Linnaean Taxonomy, Phylogenetics

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:115
• Professor: A Keating

Document Summary

Study of diversity of organisms and evolutionary relationships. Genus name capitalized, but specific epithet is not. Genus can be abbreviated, but specific epithet cannot. Genus is unique and can specify all species within genus. Taxon grouping of organisms at any one of these levels. All species at a certain level share the characteristics of that group. Taxonomists group organisms together based on particular characteristics. Study of the evolutionary history of a species or group of species. Branching diagram represents hypothesis of evolutionary history of group of organisms. Each branch point represents divergence of 2 lineages from a common ancestor (ca) Dichotomies 2-way branch points a) b) c) a) b) a) b) c) a) b) c) d) Rooted trees one branch that represents most recent common ancestor of all taxa on tree. Basal taxon lineage that diverged early in history of group a) b) c) Lies on a branch that originates near common ancestor.