Related Experiment Video
Updated: Aug 29, 2025

07:09
A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq
Published on: May 28, 2021
9.7K
Insect opsins and evo-devo: what have we learned in 25 years?
Kyle J McCulloch1, Aide Macias-Muñoz2, Adriana D Briscoe3
1Department of Ecology, Evolution and Behavior, University of Minnesota, Saint Paul, MN 55108, USA.
Summary
Insect opsins, the molecular basis of color vision, are key to understanding animal vision evolution. New technologies promise to unlock the diverse mechanisms shaping insect eyes and behavior.
Area of Science:
- Evolutionary biology
- Neuroscience
- Animal behavior
Background:
- Opsins are visual pigments crucial for color vision in animals.
- Fruit fly (Drosophila melanogaster) research has significantly advanced understanding of opsin genotype-phenotype relationships.
- Comparative studies in insects reveal evolutionary mechanisms like gene duplication and homologue switching in eye evolution.
Purpose of the Study:
- To explore the diversity of insect eyes and the evolution of opsins.
- To highlight how technological advancements are enabling new discoveries in insect vision.
Main Methods:
- Leveraging genome editing technologies.
- Utilizing in vitro expression assays.
- Comparative genomics and evolutionary analysis.
Main Results:
- Significant progress in understanding opsin function and evolution in insects.
- Identification of key evolutionary pathways shaping insect visual systems.
- Established genotype-phenotype relationships in opsin research.
Conclusions:
- Advancements in genome editing and in vitro assays are opening new avenues for insect opsin research.
- Future studies will further elucidate the evolutionary biology, visual neuroscience, and animal behavior related to insect vision.
- The study of insect opsins offers profound insights into the diversity of animal visual systems.
Related Concept Videos
Gene Duplication and Divergence
6.3K
The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
6.3K
Channel Rhodopsins
2.6K
Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
2.6K
Evolutionary Psychology
380
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
380

