phylogeny

Examples of phylogeny in the following topics:

• Superphylum Ecdysozoa

  • There are two main hypotheses about the phylogeny of the Ecdysozoans.
  • The other idea about the phylogeny of the Ecdysozoa is called the coelomate hypothesis.

• Genomic Similiarities between Distant Species

  • Phylogeny describes the relationships of an organism, such as the relationship with its ancestors and the species it is most closely related.
  • Genes have been shown to be passed between species which are only distantly related using standard phylogeny, thus adding a layer of complexity to the understanding of phylogenetic relationships.
  • The various ways that HGT occurs in prokaryotes is important to understanding phylogenies.

• Horizontal Gene Transfer

  • These transfers allow even distantly-related species (using standard phylogeny) to share genes, influencing their phenotypes.
  • These transfers allow even distantly-related species (using standard phylogeny) to share genes, influencing their phenotypes.
  • Explain how horizontal gene transfer can make resolution of phylogenies difficult

• Distinguishing between Similar Traits

  • Scientists must determine which type of similarity a feature exhibits to decipher the phylogeny of the organisms being studied.
  • Ultimately, the coupled use of both morphologic and molecular information is more effective in determining phylogeny.

• Constructing an Animal Phylogenetic Tree

  • Evolutionary trees, or phylogeny, is the formal study of organisms and their evolutionary history with respect to each other.
  • Phylogeny is evolutionary history shown by the relationships found when comparing polymeric molecules such as RNA, DNA, or proteins of various organisms.

• Measuring Biodiversity

  • It differs from molecular phylogeny in that the main goal is not to determine patterns of relationship, but to identify an unknown sample in terms of a preexisting classification.

• Limitations to the Classic Model of Phylogenetic Trees

  • Genes have been shown to be passed between species which are only distantly related using standard phylogeny, thus adding a layer of complexity to the understanding of phylogenetic relationships.

• The Diversity of Life

  • The evolution of various life forms on Earth can be summarized in a phylogenetic tree using phylogeny .

• Web, Network, and Ring of Life Models

  • Others have proposed abandoning any tree-like model of phylogeny in favor of a ring structure.

• The Levels of Classification

  • Historically, scientists classified organisms using physical characteristics, but as DNA technology developed, more precise phylogenies have been determined.