Author

Hiroki Takai

National Institute for Environmental Studies

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Evolutionary Biology· 1

Signature Assays, Organisms & Methods

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Organism:bacteria (other)· 1 Approach:experimental assay· 1 Research Focus:host-pathogen & immune response· 1

Frequent Co-Authors

Kohei OguchiiD· 1 shared Minoru MoriyamaiD· 1 shared Naruo NikohiD· 1 shared Ryuichi KogaiD· 1 shared Shuji ShigenobuiD· 1 shared Takahiro HosokawaiD· 1 shared Takema FukatsuiD· 1 shared Yayun Wang· 1 shared

Activity by Year

2026-2026 · peak 1/yr

Co-Author Collaboration Network

8 top collaborators · 28 mutual co-author links

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1 shared paperEvolutionary Biology

Kohei OguchiORCID

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1 paper

Recent·Most cited

Tryptophanase disruption underlies the evolution of insect-bacterium mutualism

Yayun Wang, Minoru Moriyama, Ryuichi Koga, Kohei Oguchi, Takahiro Hosokawa, Hiroki Takai, Shuji Shigenobu, Naruo Nikoh, Takema Fukatsu

The paper shows that disrupting the tryptophanase gene in bacteria enables mutualism with stinkbugs, suggesting this gene loss facilitated the evolution of insect-bacterium mutualism.

Nature Microbiology · Feb 27, 2026Peer-reviewedEvolutionary Biology