Powerpoint 9 - Phylogenetics

Powerpoint 9 - Phylogenetics - Phylogenetics Phylogeny The...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Phylogenetics Phylogeny – The evolutionary history of a species or group of related species Outline: 1. Key concepts 2. Bionomial 3. Classification categories 4. Three domains and six kingdoms 5. Understanding Phylogenies 6. Examples of Using Phylogenetics 7. Key Terms 8. Conclusions Key Concepts: Phylogeny – The evolutionary history of a species or group of related species Systematics – Field of biology that deals with the diversity of life. Systematics is usually divided into the two areas of Phylogenetics and Taxonomy o Taxonomy is the science of describing, naming, and classifying organisms o Classification is the arrangement of organisms by their physical similarities, which reflect historical and evolutionary relationships Phylogenetics – Field of biology that deals with the relationships between organisms. It includes the discovery of these relationships, and the study of the causes behind this pattern. Binomial Millions of kinds of organisms exist In 18 th century, Carolus Linneaus developed modern binomial nomenclature o Each species has two unique names – hence binomial o Genus o Specific epithet o Each is italicized or underlined o Genus name is capitalized; species name is not Taxonomy employs a hierarchical system of classification The Linnean system, first formally proposed by Linneaus in Systema naturae in the 18 th century, has two main characteristics: Each species has a two-part name Species are organized hierarchically into broader and broader groups of organisms. Taxonomic Levels: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Classification Schemes Reflect Scientific Knowledge and Technology 1. Prior to 1970: two-kingdom system Plants and animals 2. 1969: Roger Whittaker-five-kingdom system: Monera, Protista, Fungi, Plantae, Animalia
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Powerpoint 9 - Phylogenetics - Phylogenetics Phylogeny The...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online