BIO120H1 Lecture Notes - Lecture 10: Binomial Nomenclature, Cladistics, Willi Hennig
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BIO120H1 Full Course Notes
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In july 1839 darwin began his notebook on the transmutation of species and on page 37 he wrote i think above his first evolutionary tree. Phylogenetics & macroevolution: how to best classify life systematics, taxonomy, and cladistics, phylogenetic trees and the reconstruction of evolutionary history using molecular data, character evolution, the origin of adaptations and key innovations. What is the purpose of a biological classification: Name is key to the literature on an organism. Enables interpretation of origins and evolutionary history. A named taxonomic unit at any level (plural=taxa) The study of biodiversity and the evolutionary relationships among organisms. Schools of taxonomy: philosophical wars of the 70"s and 80"s. Classifying species based solely on overall resemblance (now largely dead) Classifying species on the basis of phylogenetic relationships. Can include morphology but includes other info like chromosome number, sequence date, biogeography) The birth of cladistics and the building of phylogenetic trees:
