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Related Concept Videos

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,...
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...
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...
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 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...

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Related Experiment Video

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The ITS2 Database
16:17

The ITS2 Database

Published on: March 12, 2012

iPhy: an integrated phylogenetic workbench for supermatrix analyses.

Martin O Jones1, Georgios D Koutsovoulos, Mark L Blaxter

  • 1Institute of Evolutionary Biology, University of Edinburgh, Edinburgh EH93JT, UK. martin.jones@ed.ac.uk

BMC Bioinformatics
|January 26, 2011
PubMed
Summary
This summary is machine-generated.

iPhy is a user-friendly web tool for assembling, analyzing, and sharing DNA sequence data for phylogenetic studies. It simplifies data handling and promotes best practices in phylogenetic analysis and taxon selection.

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Area of Science:

  • Bioinformatics
  • Computational Biology
  • Evolutionary Biology

Background:

  • Increasing molecular sequence data necessitates user-friendly tools for phylogenetic analysis.
  • Current phylogenetic pipelines present technical barriers and dependency issues.
  • Systematic bias and taxon choice limit future phylogenetic study accuracy.

Purpose of the Study:

  • To present iPhy, a web application simplifying DNA sequence dataset assembly and analysis for phylogenetics.
  • To enable non-technical users to conduct multigene phylogenetic investigations.
  • To facilitate data sharing and promote best practices in phylogenetic research.

Main Methods:

  • Developed iPhy as a client-server web application.
  • Integrated gene set collection, alignment, and analysis-ready file generation.
  • Enabled import/storage of external phylogenetic trees and integration with iTol for visualization.

Main Results:

  • iPhy allows users to assemble, share, and analyze DNA sequence datasets for phylogenetic studies.
  • The application simplifies data collection, alignment, and phylogenetic analysis file generation.
  • Systematic biases can be mitigated through explicit sequence selection criteria within iPhy.

Conclusions:

  • iPhy offers an accessible platform for large-scale phylogenetic dataset management.
  • The tool encourages adherence to best practices in phylogenetic analysis and taxon selection.
  • iPhy supports both non-technical users via a web interface and advanced users via local deployment.