Related Experiment Video
Updated: Jan 22, 2026

03:53
Author Spotlight: Efficient Venom Extraction Method from Trichogramma Parasitoid Wasps
Published on: October 6, 2023
2.1K
Bioinformatic analysis suggests potential mechanisms underlying parasitoid venom evolution and function
Gloria Alvarado1, Sarah R Holland1, Jordan DePerez-Rasmussen1
1School of Biological Sciences, Illinois State University, Normal, IL, USA.
Genomics
|June 28, 2019
Summary
Parasitoid wasp venoms contain proteins that alter host insects. This study analyzes Ganaspis sp. 1 venom proteins, revealing evolutionary processes shaping venom complexity and function in host immune evasion.
Area of Science:
- Insect biology
- Evolutionary biology
- Biochemistry
Background:
- Hymenopteran parasitoid wasps utilize venom to manipulate arthropod hosts.
- Previous proteomic studies have characterized parasitoid venoms.
- Understanding venom composition is crucial for host-parasite interaction studies.
Purpose of the Study:
- To bioinformatically characterize the venom protein content of Ganaspis sp. 1.
- To investigate the evolutionary processes driving venom gene evolution in this parasitoid.
- To identify potential virulence functions of Ganaspis sp. 1 venom.
Main Methods:
- Bioinformatic analysis of venom proteins from Ganaspis sp. 1.
- Comparative genomics to infer evolutionary events.
- Literature review for known venom functions.
Main Results:
- Identification of diverse venom proteins in Ganaspis sp. 1.
- Evidence for multifunctionalization, co-option, gene duplication, and horizontal gene transfer in venom evolution.
- Uncovered additional predicted virulence functions, including immune evasion mechanisms.
Conclusions:
- Ganaspis sp. 1 venom evolution is shaped by multiple evolutionary processes.
- The venom possesses diverse functions, including significant roles in host immune evasion.
- This study advances the understanding of parasitoid venom composition and function.
Related Concept Videos
Mechanical Protein Functions
5.5K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
5.5K
The Evidence for Evolution
47.7K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
47.7K
Convergent Evolution
31.5K
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.
31.5K
Mechanical Protein Function
2.5K
2.5K
Eukaryotic Evolution
40.3K
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...
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
40.3K
Synteny and Evolution
3.8K
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...
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.8K

