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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...
Synteny and Evolution02:31

Synteny and Evolution

John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral chromosome underwent...
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Eukaryotic Evolution

The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
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...
What is Evolutionary History?02:35

What is Evolutionary History?

Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.Phylogenetic trees illustrate the evolutionary relationships among these organisms. Scientists infer organisms’ common ancestry by evaluating shared morphological and genetic characteristics. Together, the fossil...
Convergent Evolution01:54

Convergent Evolution

Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.The structures that arise from convergent evolution are called analogous structures. They are similar in function even if they are dissimilar in structure. Further, structures can be analogous while also...

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IDEA: Interactive Display for Evolutionary Analyses.

Rain Simons1, Anup Mahurkar, Jonathan Crabtree

  • 1Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD 21201, USA. american691@yahoo.com

BMC Bioinformatics
|December 9, 2008
PubMed
Summary
This summary is machine-generated.

IDEA, a new graphical interface, simplifies molecular evolution analyses using codeml and baseml. It reduces errors and speeds up genome-wide studies by eliminating manual data handling and providing interactive results visualization.

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Area of Science:

  • Genomics
  • Molecular Evolution
  • Bioinformatics

Background:

  • Complete genomic sequences enable genome-wide molecular evolution analyses.
  • Phylogenetic Analysis by Maximum Likelihood (PAML) programs like codeml and baseml are widely used but lack a graphical user interface (GUI).
  • The absence of a GUI limits user accessibility and reduces analytical efficiency.

Purpose of the Study:

  • To develop an intuitive graphical user interface (GUI) for molecular evolution analyses.
  • To streamline the process of phylogenetic and molecular evolution analyses.
  • To improve the efficiency and accessibility of genome-wide evolutionary studies.

Main Methods:

  • Developed IDEA (Interactive Display for Evolutionary Analyses), a GUI that interacts with PHYLIP, codeml, and baseml.
  • Implemented graphical input and visualization interfaces to eliminate manual text file editing and parsing.
  • Enabled parallel data processing on local machines or computing grids.

Main Results:

  • IDEA provides a user-friendly interface for molecular evolution analyses, from parameter input to result exploration.
  • Graphical interfaces reduce errors and processing time associated with manual data handling.
  • Interactive output display offers immediate access to results, including phylogenies and evolutionary rates.

Conclusions:

  • IDEA significantly expedites genome-wide molecular evolution analyses by integrating multiple functions into a single tool.
  • The GUI simplifies the interpretation of complex evolutionary data through visualization.
  • IDEA enhances user efficiency and accessibility for molecular evolution studies.