Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

The Roles of Bacteria and Fungi in Plant Nutrition

The Roles of Bacteria and Fungi in Plant Nutrition

Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.

Epiphytes, Parasites, and Carnivores

Epiphytes, Parasites, and Carnivores

Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the biosynthesis of the...

Diversity of Protists II

Diversity of Protists II

Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...

Microbial Interactions: Parasitism

Microbial Interactions: Parasitism

Parasitism is a form of microbial interaction in which parasitic microbes exploit a host organism for nutrients and shelter, often at the host's expense. Unlike mutualistic relationships, where both organisms benefit, parasitism benefits only the parasite and harms the host.Classification of ParasitesMicrobial parasites are broadly classified based on their location relative to the host.Ectoparasites remain on the host’s surface, such as the skin or outer tissues, drawing nutrients...

Microbe-Plant Interactions

Microbe-Plant Interactions

Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...

Production of Biopesticides

Production of Biopesticides

Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...

You might also read

Related Articles

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

Sort by

Same author

Retrotransposed gene copies persist under relaxed selection in wild Spodoptera frugiperda.

Molecular biology and evolution·2026

Same author

LepEU: A Consortium to Study the Population Genomics of Butterflies and Moths Across Europe.

Evolutionary applications·2026

Same author

Investigating the Genetic Underpinnings of Ongoing Fall Armyworm (FAW) Range Expansion in Aotearoa New Zealand.

Ecology and evolution·2026

Same author

Genomic Analysis Reveals Annual Variation in the Migratory Pathways to East Asia in the Brown Planthopper (<i>Nilaparvata lugens</i>).

Evolutionary applications·2025

Same author

Is the extreme within-population genome size variation real in Spodoptera frugiperda?

PloS one·2025

Same author

Lepidopteran Genomes Have Denser Transposable Elements in Smaller Chromosomes, Likely Driven by Non-allelic Homologous Recombination.

Genome biology and evolution·2025

Search research articles

Related Experiment Video

Updated: Jun 21, 2026

Protocols for Investigating the Host-tissue Distribution, Transmission-mode, and Effect on the Host Fitness of a Densovirus in the Cotton Bollworm

Protocols for Investigating the Host-tissue Distribution, Transmission-mode, and Effect on the Host Fitness of a Densovirus in the Cotton Bollworm

Published on: April 12, 2017

Two host-plant strains in the fall armyworm.

Kiwoong Nam¹, Nicolas Nègre¹, Clara Ines Saldamando Benjumea²

¹DGIMI, Université de Montpellier, INRAE, Montpellier, France.

|March 4, 2024

Summary

The fall armyworm (Spodoptera frugiperda) consists of two strains, corn and rice, which are confirmed as host-plant strains. Host-plant adaptation drives the incipient speciation of this major agricultural pest.

Keywords:

Spodoptera frugiperda fall armyworm host‐plant adaptation incipient speciation

More Related Videos

Hyperactive piggyBac Transposase-mediated Germline Transformation in the Fall Armyworm, Spodoptera frugiperda

Hyperactive piggyBac Transposase-mediated Germline Transformation in the Fall Armyworm, Spodoptera frugiperda

Published on: September 23, 2021

Author Spotlight: Analysis of Ovarian Anatomy in Migratory Insects to Overcome Experimental Challenges

Author Spotlight: Analysis of Ovarian Anatomy in Migratory Insects to Overcome Experimental Challenges

Published on: July 14, 2023

Related Experiment Videos

Last Updated: Jun 21, 2026

Protocols for Investigating the Host-tissue Distribution, Transmission-mode, and Effect on the Host Fitness of a Densovirus in the Cotton Bollworm

Protocols for Investigating the Host-tissue Distribution, Transmission-mode, and Effect on the Host Fitness of a Densovirus in the Cotton Bollworm

Published on: April 12, 2017

Hyperactive piggyBac Transposase-mediated Germline Transformation in the Fall Armyworm, Spodoptera frugiperda

Hyperactive piggyBac Transposase-mediated Germline Transformation in the Fall Armyworm, Spodoptera frugiperda

Published on: September 23, 2021

Author Spotlight: Analysis of Ovarian Anatomy in Migratory Insects to Overcome Experimental Challenges

Author Spotlight: Analysis of Ovarian Anatomy in Migratory Insects to Overcome Experimental Challenges

Published on: July 14, 2023

Area of Science:

Entomology
Evolutionary Biology
Genomics

Background:

The fall armyworm (Spodoptera frugiperda) is a significant agricultural pest impacting crops like corn, rice, and sorghum.
Two morphologically similar strains, the corn strain and the rice strain, have been identified based on host preference.

Purpose of the Study:

To present evidence from population genomics studies to support the classification of fall armyworm strains as host-plant strains.
To investigate the role of host-plant adaptation in the evolutionary divergence of fall armyworm strains.

Main Methods:

Population genomics analyses were employed to study the genetic structure and evolutionary relationships of fall armyworm strains.
Comparative genomic approaches were used to identify signatures of selection related to host-plant adaptation.

Main Results:

Population genomics data provide strong support for the designation of the corn and rice fall armyworm populations as distinct host-plant strains.
Evidence suggests that host-plant adaptation is a key factor contributing to the early stages of speciation in Spodoptera frugiperda.

Conclusions:

The findings confirm the existence of host-plant strains within the fall armyworm (Spodoptera frugiperda).
Host-plant adaptation is identified as a significant evolutionary driver, potentially leading to incipient speciation in this pest species.