Dictionary > Phylogenetic tree

Phylogenetic tree

Definition
noun, plural: phylogenetic tree
A tree diagram that shows the evolutionary histories and relationships of groups of organisms based on the phylogenies of different biological species
Supplement
The phylogenetic tree is a tree diagram to show the evolutionary histories and relationships among taxonomic groups. It is used in phylogenetics, which is a branch of biology that is concerned mainly in the study of evolutionary relatedness among various groups of organisms through molecular sequencing data and morphological data matrices. The phylogenetic tree is essential in phylogenetics since it has been used to understand biodiversity, genetics, evolutions, and ecology among groups of organisms.
The phylogenetic tree shows phylogeny, i.e. the similarities and differences in morphology and genetics between groups of organisms (or taxa). The taxa that are joined together in the phylogenetic tree implicate evolutionary relatedness. They may also be hypothesized to have descended from a hypothetical common ancestor (internal node). When the ancestral path is implicated the phylogenetic tree is said to be rooted. There are different types of phylogentic trees. A rooted phylogenetic tree is when the nodes implicate the most recent common ancestor of taxa being analyzed. Another type of phylogenetic tree is the unrooted tree. In this type of tree, there is no assumption on ancestry but only the evolutionary relatedness.
Synonym(s):

  • evolutionary tree

See also:

  • phylogeny
  • phylogenetics
  • systematics
  • evolution
  • taxonomy
  • classification
  • species


    You will also like...

    Homo Species
    The Homo Species

    The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..

    Structural depiction of catalase, an enzyme
    Protein Activity and Cellular Metabolism

    Proteins have a crucial role in various biological activities. Get to know how proteins are able to perform as enzymes, ..

    vitamins
    A Balanced Vitamin Diet – Vitamins A – K

    A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..

    Chromosome Mutations
    Chromosome Mutations

    Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..

    Origins of Life on Earth
    Origins of Life on Earth

    Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

    Pikas are an indicator species for climate change
    Indicator Species and Endangered Species

    Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..