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Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

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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...
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Phylogenetic Trees03:21

Phylogenetic Trees

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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.
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Phylogeny01:23

Phylogeny

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

Gene Evolution - Fast or Slow?

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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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The Tree of Life - Bacteria, Archaea, Eukaryotes02:40

The Tree of Life - Bacteria, Archaea, Eukaryotes

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The “tree of life” describes the evolution of life and the evolutionary relationships between organisms. The root of the tree is the common ancestor to all life on Earth. All other species radiate from this point, much like the branches of a tree. The numerous tips of these branches on the tree of life represent every living, or extant, species. Extinct species, which are species that no longer exist, can be found towards the center of the tree. Currently, these organisms, both...
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Protein Families02:47

Protein Families

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Protein families are groups of homologous proteins; that is, they have similarities in amino acid sequences and three-dimensional structures. Protein families usually occur because of gene duplication, where an additional copy of a gene is inserted into the genome of an organism.   Mutations that change the amino acids but still allow the protein to be properly synthesized, will lead to new protein family members.   If these new proteins contain similar amino acids in key...
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Updated: Sep 10, 2025

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
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Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

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Filogenética estructural de las proteínas

Caroline Puente-Lelievre1,2, Ashar Malik3,4,5, Jordan Douglas2,6

  • 1School of Biological Sciences, The University of Auckland, Auckland, New Zealand.

Genome biology and evolution
|August 21, 2025
PubMed
Resumen
Este resumen es generado por máquina.

La filogenética estructural de proteínas utiliza estructuras 3D para rastrear historias evolutivas, ofreciendo información sobre la evolución de las proteínas, especialmente en regiones de baja similitud de secuencia. Los avances en IA ahora proporcionan datos estructurales accesibles, mejorando el análisis filogenético.

Palabras clave:
Biología evolutivaEvolución molecularFilogenéticaEstructura de las proteínasel examenFilogenética estructural

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Área de la Ciencia:

  • Evolución molecular
  • Biología estructural
  • La bioinformática

Sus antecedentes:

  • La estructura de la proteína está más conservada que la secuencia, lo que la hace valiosa para el análisis evolutivo.
  • El
  • La zona crepuscular
  • de baja similitud de secuencia plantea desafíos para los métodos filogenéticos tradicionales.
  • Los datos estructurales limitados de alta resolución históricamente limitaban el campo.

Objetivo del estudio:

  • Revisar el estado actual de la filogenética estructural de las proteínas.
  • Esbozar métodos para extraer conocimientos evolutivos de los datos estructurales.
  • Para resaltar las aplicaciones clave y las direcciones futuras en el campo.

Principales métodos:

  • Utilizando datos estructurales de proteínas en 3D para el análisis filogenético.
  • Aprovechar los avances de la inteligencia artificial para obtener datos estructurales accesibles y de alta calidad.
  • Desarrollar y aplicar métodos para construir árboles filogenéticos a partir de estructuras de proteínas.

Principales resultados:

  • La filogenética estructural de las proteínas ofrece una mayor resolución evolutiva que la secuencia sola, particularmente en regiones desafiantes de baja similitud.
  • La accesibilidad a los datos estructurales impulsada por la IA supera las limitaciones históricas.
  • Los métodos actuales están avanzando, pero aún se quedan atrás de los modelos probabilísticos basados en secuencias.

Conclusiones:

  • La filogenética estructural de las proteínas es un campo de rápido avance con un potencial significativo.
  • La integración de la secuencia y los datos estructurales está preparada para mejorar los análisis filogenéticos.
  • Las direcciones futuras incluyen un mayor desarrollo de modelos probabilísticos y colaboraciones interdisciplinarias.