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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,...
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...

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Related Experiment Video

Updated: Jul 5, 2026

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
08:57

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Published on: August 14, 2018

DupTree: a program for large-scale phylogenetic analyses using gene tree parsimony.

André Wehe1, Mukul S Bansal, J Gordon Burleigh

  • 1Department of Computer Science, Iowa State University, Ames, IA 50011, USA.

Bioinformatics (Oxford, England)
|May 14, 2008
PubMed
Summary
This summary is machine-generated.

DupTree is novel software for inferring species trees from gene trees using gene tree parsimony. This new algorithm improves runtime for genome-scale phylogenetic analyses.

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Related Experiment Videos

Last Updated: Jul 5, 2026

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
08:57

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Published on: August 14, 2018

A Practical Guide to Phylogenetics for Nonexperts
12:00

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

Creating and Applying a Reference to Facilitate the Discussion and Classification of Proteins in a Diverse Group
07:49

Creating and Applying a Reference to Facilitate the Discussion and Classification of Proteins in a Diverse Group

Published on: August 16, 2017

Area of Science:

  • Computational Biology
  • Phylogenetics
  • Bioinformatics

Background:

  • Inferring rooted species trees from gene trees is crucial for understanding evolutionary relationships.
  • Existing methods for gene tree parsimony can be computationally intensive, limiting scalability.

Purpose of the Study:

  • To introduce DupTree, a new software program designed for efficient and scalable phylogenetic analysis.
  • To implement a novel algorithm for gene tree parsimony that significantly enhances computational performance.

Main Methods:

  • DupTree utilizes a novel algorithm for the gene tree parsimony approach.
  • The software allows for the examination of alternate rootings and weighting of gene tree reconciliation costs.
  • It is an open-source project written in C++.

Main Results:

  • The novel algorithm in DupTree significantly improves the runtime of standard search heuristics for gene tree parsimony.
  • DupTree enables the first truly genome-scale phylogenetic analyses.
  • The software provides flexibility in exploring phylogenetic hypotheses through adjustable rooting and weighting parameters.

Conclusions:

  • DupTree offers a computationally efficient solution for inferring rooted species trees from gene trees.
  • The software facilitates large-scale phylogenetic analyses, advancing the field of evolutionary biology.
  • DupTree is a valuable, open-source tool for researchers in bioinformatics and computational biology.