Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Genetics of Speciation02:16

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...
Formation of Species01:31

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...
Speciation Rates01:07

Speciation Rates

Speciation can proceed at markedly different rates, and evolutionary biologists commonly describe these differences through the models of gradualism and punctuated equilibrium. Both patterns explain how new species arise, but they differ in the tempo and continuity of evolutionary change. In both cases, evolutionary change arises from heritable variation within populations, with natural selection often shaping traits that improve survival and reproduction under specific environmental conditions.
Understanding Species and Reproductive Barriers01:17

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...
Fungal Group Zygomycota01:29

Fungal Group Zygomycota

Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...
Hybrid Zones02:29

Hybrid Zones

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.Gene flow and natural selection are evolutionary mechanisms that shape the outcome of a hybrid zone. Gene flow...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Unveiling the hidden virome of Sclerotinia sclerotiorum: New tools and discoveries in mycovirus detection.

Virology·2026
Same author

Using the SeqCode to validate the names of reclassified lineages of rhizobia and agrobacteria.

Systematic and applied microbiology·2026
Same author

Mating-type locus structure affects gene expression in unidirectional mating-type switching fungi.

G3 (Bethesda, Md.)·2026
Same author

A comprehensive genome-centred taxonomy for agrobacteria and rhizobia in the <i>Bartonellaceae</i> and <i>Rhizobiaceae</i> families.

International journal of systematic and evolutionary microbiology·2026
Same author

Comparative analysis of mitochondrial genomes in the Ceratocystidaceae reveals highly conserved gene organization despite substantial genome size variation.

BMC genomics·2026
Same author

Equipped for success: genomes and metabolomes of the European Amanita muscaria are conserved in its novel South African range.

The New phytologist·2026
Same journal

<i>Cryptoporus densiflorus</i>, sp. nov. (Polyporaceae), from East Asia and a reassessment of species distributions in <i>Cryptoporus</i>.

Mycologia·2026
Same journal

Molecular dynamics modeling of the <i>Candida albicans</i> membrane for the discovery of membrane-binding antifungal peptides.

Mycologia·2026
Same journal

Free-living fungi in the Anthropocene and impacts on public health, food security, and biodiversity.

Mycologia·2026
Same journal

<i>Fusarium xyrophilum</i> facilitates its dispersal by exploiting sensory biases of generalist insects through pseudoflowers.

Mycologia·2026
Same journal

Phylogenomic systematics of <i>Lanmaoa</i> (Boletaceae) reveals cryptic diversity, resolves global evolutionary relationships, and suggests a novel psychoactive lineage.

Mycologia·2026
Same journal

Pyrodiversity-biodiversity hypothesis and soil fungi-barking up the wrong tree or only at the wrong time?

Mycologia·2026
See all related articles

Related Experiment Video

Updated: Jun 6, 2026

Sexual Development and Ascospore Discharge in Fusarium graminearum
08:20

Sexual Development and Ascospore Discharge in Fusarium graminearum

Published on: March 29, 2012

Cryptic speciation in Fusarium subglutinans.

Emma T Steenkamp1, Brenda D Wingfield, Anne E Desjardins

  • 1Department of Genetics, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria 0002, South Africa.

Mycologia
|December 16, 2010
PubMed
Summary
This summary is machine-generated.

Phylogenetic analysis reveals cryptic species within Fusarium subglutinans, indicating divergence into distinct taxa. These findings challenge current Fusarium taxonomy and highlight ongoing speciation in this fungal complex.

More Related Videos

A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates
11:48

A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates

Published on: October 28, 2021

Related Experiment Videos

Last Updated: Jun 6, 2026

Sexual Development and Ascospore Discharge in Fusarium graminearum
08:20

Sexual Development and Ascospore Discharge in Fusarium graminearum

Published on: March 29, 2012

A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates
11:48

A Contrast of Three Inoculation Techniques used to Determine the Race of Unknown Fusarium oxysporum f.sp. niveum Isolates

Published on: October 28, 2021

Area of Science:

  • Mycology
  • Plant Pathology
  • Evolutionary Biology

Background:

  • Taxonomic classification of Fusarium species within the Gibberella fujikuroi complex relies on morphological, biological, and phylogenetic concepts.
  • Morphological and biological species concepts present challenges in Fusarium taxonomy, with phylogenetic approaches offering more consistent identifications.
  • Recent studies show discordance between biological and phylogenetic species concepts, particularly within Fusarium subglutinans (mating population E).

Purpose of the Study:

  • To investigate whether the observed subdivision within Fusarium subglutinans sensu stricto represents true species divergence or intraspecific diversity.
  • To clarify the taxonomic status of Fusarium subglutinans mating population E isolates.
  • To contribute to a more accurate understanding of Fusarium species complexes.

Main Methods:

  • Phylogenetic concordance analyses were performed on DNA sequence data from six nuclear regions.
  • Twenty-nine Fusarium subglutinans isolates from mating population E, collected from maize and teosinte across a wide geographic range, were analyzed.
  • Isolates were subjected to molecular phylogenetic analysis to assess genetic relationships.

Main Results:

  • Phylogenetic analyses revealed two major distinct groups within the studied Fusarium subglutinans isolates, indicative of cryptic species.
  • These cryptic species were further resolved into smaller, reproductively isolated groups, suggesting ongoing speciation.
  • The observed divergences were not correlated with geographic origin, host plant (maize or teosinte), or observable phenotypic traits.

Conclusions:

  • Fusarium subglutinans populations are undergoing divergence, leading to the formation of distinct cryptic species.
  • These findings suggest that lineages within F. subglutinans are actively separating into new taxa.
  • The study underscores the complexity of Fusarium taxonomy and the utility of phylogenetic methods in resolving cryptic diversity.