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Related Concept Videos

Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

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...
Phylogenetic Trees03:21

Phylogenetic Trees

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.The length of the branches can depict time or the relative amount of change among organisms. For instance, the branch length might indicate the number of amino acid changes in the sequence that underlies the...
Phylogenetic Trees03:21

Phylogenetic Trees

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.The length of the branches can depict time or the relative amount of change among organisms. For instance, the branch length might indicate the number of amino acid changes in the sequence that underlies the...
Microbial Phylogeny01:28

Microbial Phylogeny

Understanding the evolutionary relationships among microorganisms is fundamental to microbial ecology and taxonomy. Phylogenetic trees are essential tools for inferring these relationships, relying primarily on comparative analyses of molecular sequences such as DNA, RNA, or proteins. In microbial studies, these trees typically depict the evolutionary paths of diverse bacterial and archaeal species by mapping genetic differences accumulated over time.Phylogenetic trees are composed of tips,...
Phylogenetic Species Concept in Microbiology01:22

Phylogenetic Species Concept in Microbiology

The phylogenetic species concept (PSC) is a framework used to delineate species based on evolutionary relationships, emphasizing shared ancestry and diagnosable genetic traits. Unlike morphological or biological species concepts, the PSC is particularly advantageous for microbial taxonomy, where traditional reproductive or phenotypic criteria often fall short due to the prevalence of asexual reproduction, minimal morphological differentiation, and widespread horizontal gene transfer among...
Phylogeny01:23

Phylogeny

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...

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Related Experiment Video

Updated: Jul 13, 2026

A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles
10:23

A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles

Published on: July 11, 2025

Rebuilding the species pool within a phylogenetic framework.

Sijia Yuan1, Yuhao Zhao2, Jean-Philippe Lessard3

  • 1Center for Global Change and Ecological Forecasting, Zhejiang Zhoushan Island Ecosystem Observation and Research Station, Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, Institute of Eco-Chongming, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China.

Trends in Ecology & Evolution
|July 11, 2026
PubMed
Summary

This study introduces a new phylogenetic framework to define the species pool, integrating evolutionary history. This approach enhances understanding of ecological communities and biogeography over long timescales.

Keywords:
dispersion fieldevolutionary processnull modelphylogenetic diversityprobabilistic approachspecies pool

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Last Updated: Jul 13, 2026

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Published on: July 11, 2025

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Biogeography

Background:

  • The species pool concept is crucial for linking ecological and evolutionary processes.
  • Existing definitions often overlook historical and evolutionary factors shaping species pools.
  • This gap limits understanding of long-term community assembly and biogeographic patterns.

Purpose of the Study:

  • To propose a novel phylogenetic framework for defining the species pool.
  • To incorporate evolutionary connectivity and historical processes into the species pool concept.
  • To provide deeper evolutionary insights for community ecology and conservation biogeography.

Main Methods:

  • Inferring evolutionary connectivity between communities within a biogeographic region.
  • Utilizing phylogenetic data to reconstruct historical relationships.
  • Developing a framework to define the species pool based on evolutionary history.

Main Results:

  • The proposed phylogenetic framework defines the species pool by evolutionary connectivity.
  • This definition better accounts for historical and evolutionary processes.
  • The framework is suitable for studying long-term assembly processes.

Conclusions:

  • A phylogenetic approach offers a more comprehensive definition of the species pool.
  • This framework advances our understanding of community ecology and biogeography.
  • It provides valuable evolutionary insights for conservation efforts.