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Koshikawa Lab
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The lab connects development and evolution through insect color patterns and adaptation to life underground.
AboutAbout the lab
Linking life in the wild to the mechanisms of development
The Koshikawa Lab conducts research that connects the lives of organisms in the wild to the evolution of developmental mechanisms.
With the keyword Eco-Evo-Devo (ecology, evolution, and development), it works mainly with insects.
The lab investigates how the wing and body patterns of the fruit fly Drosophila guttifera are formed and what roles they serve.
It also studies the adaptation of blind ground beetles, which live in shallow underground layers and are thought to have lost their vision.
Key terms
- Development
- The process in which cells of a fertilized egg repeat division and differentiation until a single individual is formed
- Gene regulatory network
- A web of connections in which genes regulate one another's activity. It determines the pathway by which shapes and patterns are formed
- Adaptive evolution
- The spread through a population, over generations, of traits that make survival easier in a given environment
NewsLab news
A doctoral student won a poster presentation award at Hokkaido Bio "Mix-up"
A doctoral student won the Best English Presentation Award at the joint meeting of the Entomological Society of Japan and the Japanese Society of Applied Entomology and Zoology
A doctoral student won an excellent presentation award at the Hokkaido Branch Meeting of the Zoological Society of Japan
A master's student won the top prize at the master's thesis presentation session of the Division of Biosphere Science, Graduate School of Environmental Science
ResearchResearch themes
With the keyword Eco-Evo-Devo (ecology, evolution, and development), the lab aims to connect the lives of organisms in the wild to the evolution of developmental mechanisms. Using insects and other organisms, it seeks to find interesting phenomena and principles.
*Illustrative imageHow patterns are formed
The lab investigates the mechanisms by which the wing and body patterns of the fruit fly Drosophila guttifera are formed. It also studies how the gene regulatory network that controls them came to be established over the course of evolution.
*Illustrative imageWhat are patterns useful for?
The lab studies what functions and roles the wing and body patterns of Drosophila guttifera have.
*Illustrative imageEvolution of insects living underground
Focusing on blind ground beetles, which live in shallow underground layers and are thought to have lost their vision, the lab studies the mechanisms of vision loss and adaptive evolution to the underground environment from the perspectives of behavior, structure, and the genome.
MembersFaculty
The members of the Koshikawa Lab are faculty, researchers, technical assistants, graduate students, and undergraduate students.As of 2026
- ProfessorShigeyuki Koshikawa
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Dguttifera” MA Hanson / CC BY-SA 4.0 (cropped)
- How patterns are formed: “Dphalerata wing female” MA Hanson / CC BY-SA 4.0 (cropped)
- What are patterns useful for?: “Dguttifera2” MA Hanson / CC BY-SA 4.0 (cropped)
- Evolution of insects living underground: “Trechus-undetermined-01-fws” Francisco Welter-Schultes / CC0 (cropped)
- Related lab (Kuroiwa-Chikami-Yang Lab): “Chicken embryo” Mjeltsch / CC BY-SA 4.0 (cropped)
- Related lab (Kotani Lab): “Danio rerio port” Soulkeeper / Public domain (cropped)
- Related lab (Fujita Lab): “Ecotypes of Physcomitrella patens” Lab of Ralf Reski (http://en.wikipedia.org/wiki/Ralf_Reski) / CC BY-SA 3.0 (cropped)
- Related lab (Naramoto Lab): “Arabidopsis thaliana kz07” Krzysztof Ziarnek, Kenraiz / CC BY-SA 4.0 (cropped)
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