Search research articles

ACERCA DE JoVE

Visión General Liderazgo Blog Centro de Ayuda JoVE

AUTORES

Proceso de Publicación Consejo Editorial Alcance y Políticas Revisión por Pares Preguntas Frecuentes Enviar

BIBLIOTECARIOS

Testimonios Suscripciones Acceso Recursos Consejo Asesor de Bibliotecas Preguntas Frecuentes

INVESTIGACIÓN

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archivo

EDUCACIÓN

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Centro de Recursos para Profesores Sitio de Profesores

Términos y Condiciones de Uso

Política de Privacidad

Videos de Conceptos Relacionados

Understanding Species and Reproductive Barriers

Understanding Species and Reproductive Barriers

A species is a group of organisms that interbreed and produce fertile offspring. Typically, individuals of the same species appear similar and share common characteristics due to their highly similar genomes. However, not all organisms that look alike are members of the same species. Various mechanisms keep most species discrete. While some mechanisms prevent reproductive behavior and fertilization (pre-zygotic isolation), others prevent the production of fertile offspring after mating has...

Formation of Species

Formation of Species

Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.Allopatric SpeciationIn allopatric speciation, gene flow between two populations of the same species is prevented by a geographic barrier, like...

Genetics of Speciation

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.The genetics of speciation involves the different traits or isolating mechanisms preventing gene exchange, leading to reproductive isolation. Reproductive isolation can be due to reproductive barriers that have effects either before or after the formation of a zygote. Pre-zygotic mechanisms prevent fertilization from occurring, and post-zygotic mechanisms...

Gene Flow

Gene Flow

Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.

Microbial Morphologies

Microbial Morphologies

Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...

Phylogenetic Species Concept in Microbiology

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...

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por

Same author

Habitat-specific trends in taxonomic, functional, and phylogenetic diversity in European plant communities over a century.

Nature communications·2026

Same author

Identity Salience and Field-Course Engagement: From Deficits to Assets.

Ecology and evolution·2026

Same author

Rapid adaptation and extinction in synchronized outdoor evolution experiments of <i>Arabidopsis</i>.

Science (New York, N.Y.)·2026

Same author

Growth form and lifespan of herbaceous species mediate the role of traits in short-term drought response.

Nature ecology & evolution·2026

Same author

Reconciling links between diversity and population stability across global plant communities.

The New phytologist·2026

Same author

Plant community, ecosystem, and abiotic data from a global change experiment in mountain grasslands in Norway.

Scientific data·2026

Search research articles

Video Experimental Relacionado

Updated: Jul 5, 2026

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Published on: October 29, 2016

Las limitaciones de dispersión son importantes para las especies de morfospecies microbianas.

Richard J Telford¹, Vigdis Vandvik, H J B Birks

¹Bjerknes Centre for Climate Research, Allégaten 55, N-5007 Bergen, Norway. richard.telford@bjerknes.uib.no

Science (New York, N.Y.)

|May 20, 2006

Resumen

Muchas especies microbianas parecen estar en todas partes, pero este estudio encuentra diferencias regionales. Las comunidades microbianas están estructuradas de manera similar a los organismos más grandes, desafiando la teoría de que "todo está en todas partes".

Más Videos Relacionados

Assessing Biofilm Dispersal in Murine Wounds

Assessing Biofilm Dispersal in Murine Wounds

Published on: August 7, 2021

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

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

Published on: July 11, 2025

Videos de Experimentos Relacionados

Last Updated: Jul 5, 2026

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Published on: October 29, 2016

Assessing Biofilm Dispersal in Murine Wounds

Assessing Biofilm Dispersal in Murine Wounds

Published on: August 7, 2021

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

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

Published on: July 11, 2025

Área de la Ciencia:

Ecología Ecología Ecología.
Microbiología Microbiología.
Biología evolutiva Biología evolutiva.

Sus antecedentes:

Los macroorganismos suelen tener rangos geográficos restringidos.
Las especies microbianas a menudo se consideran cosmopolitas, con distribuciones ubicuas.
La teoría del "todo está en todas partes, pero, el medio ambiente selecciona" explica el cosmopolitismo microbiano a través de grandes tamaños de población y dispersión.

Objetivo del estudio:

Para investigar los patrones de distribución de las especies de morfología microbiana.
Para probar la teoría de que "todo está en todas partes" frente a la variabilidad genética regional observada.
Determinar si las comunidades microbianas están estructuradas por procesos de metacomunidad.

Principales métodos:

Análisis de la variabilidad genética regional dentro de las morfospecies microbianas.
Comparación de los patrones de distribución observados con las predicciones de modelos de dispersión ubicuos.
Detección de procesos de metacomunidad en poblaciones microbianas.

Principales resultados:

Se detectó evidencia de una considerable variabilidad genética regional dentro de las morfospecies microbianas.
Contrariamente a las expectativas de dispersión ubicua, se identificaron procesos de metacomunidad a escala regional en poblaciones microbianas.
Los patrones observados desafían la teoría de que "todo está en todas partes" para las especies microbianas.

Conclusiones:

Las distribuciones de las especies microbianas no se explican únicamente por la dispersión ubicua.
Los procesos de metacomunidad influyen significativamente en la estructura de la comunidad microbiana, similar a los macroorganismos.
La estructuración ecológica y evolutiva de los mundos microbiano y macrobiano puede ser análoga.