Related Concept Videos
01:23Phylogeny
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Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
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03:21Phylogenetic Trees
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Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.
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01:31Taxonomy
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Taxonomy is the science of defining and naming groups of biological organisms based on shared characteristics. It uses a hierarchy of increasingly inclusive categories with Latin names. The smallest units of taxonomy, species and genus, are used to assign a formal, taxonomic name to each species in a system. This classification system, referred to as binomial nomenclature, was formalized by Carolus Linnaeus in the 18th century.
Hierarchy of Taxonomy
The hierarchy that Carolus Linnaeus first...
Hierarchy of Taxonomy
The hierarchy that Carolus Linnaeus first...
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02:54Evolutionary Relationships through Genome Comparisons
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Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
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02:40The Tree of Life - Bacteria, Archaea, Eukaryotes
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The “tree of life” describes the evolution of life and the evolutionary relationships between organisms. The root of the tree is the common ancestor to all life on Earth. All other species radiate from this point, much like the branches of a tree. The numerous tips of these branches on the tree of life represent every living, or extant, species. Extinct species, which are species that no longer exist, can be found towards the center of the tree. Currently, these organisms, both...
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02:40The Tree of Life - Bacteria, Archaea, and Eukaryotes
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A unified view of homology.
Cladistics : the international journal of the Willi Hennig Society·2023
Same author
Are monophyly and synapomorphy the same or different? Revisiting the role of morphology in phylogenetics.
Cladistics : the international journal of the Willi Hennig Society·2021
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A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles
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Individuals, kinds, phylogeny and taxonomy
1Laboratório de Sistemática Vegetal, Departamento de Botânica, Universidade de São Paulo, Rua do Matão 277, São Paulo, SP 05508-090, Brazil E-mail: lcsassis@ib.usp.br; leandassis@gmail.com.
Cladistics : the International Journal of the Willi Hennig Society
|December 31, 2021
Summary
No abstract available in PubMed .
