Research

1. Elucidation of the Gene Network Controlling Leaf Shape in a Model Plant

We have been working to identify the genes that control the length, width, and thickness of Arabidopsis thaliana leaves. We are now working to fill the gap that remains between each gene function and leaf shape.

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1. Elucidation of the Gene Network Controlling Leaf Shape in a Model Plant

2. Elucidation of the mechanism that determines leaf size in model plants

The size control of organs is very important for multicellular organisms. In plant leaves, there is a phenomenon called "compensation" in which cell size increases excessively to compensate for insufficient cell proliferation. We are trying to solve this fascinating phenomenon.

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2. Elucidation of the mechanism that determines leaf size in model plants

3.Evo-Devo Study on Leaf Morphological Diversity

There is a great diversity of leaves in nature. There are many examples of specialized leaves that are not seen in mutants of Arabidopsis. On the basis of findings from model plants, we are trying to solve the evolutionary mechanism of specialized leaf morphologies.

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3.Evo-Devo Study on Leaf Morphological Diversity

4. Unveiling evolutionary mechanisms of adaptive traits in aquatic plant leaf

The leaves of aquatic plants have various adaptive traits, including heterophylly, a drastic phenotypic plasticity in leaf form. We are investigating the evolutionary mechanisms of such traits using plants of the genus Calltriche.

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4. Unveiling evolutionary mechanisms of adaptive traits in aquatic plant leaf

5. Understanding the evolution of leaf gene networks during plant evolution

We are conducting a project to elucidate the molecular mechanisms that enable land plants to acquire leaves by selecting several model plants from an evolutionary perspective and using molecular biological methods, transcriptomes, and informatics.

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5. Understanding the evolution of leaf gene networks during plant evolution

6. Other projects.

In addition to the above, the Tsukaya Lab. is conducting a variety of projects involving both model and non-model plants.

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6. Other projects.

Publications

*Boldfaced authors: related to the lab.

Members

Hirokazu TsukayaProfessor

Born in Kanagawa Prefecture, Japan. He has been a plant lover since his childhood. While his main field of interest is developmental biology, he is also involved in phylogenetic systematics, especially field surveys of fungus-parasitic plants in tropical Asia.

tsukaya [at:mark] bs.s.u-tokyo.ac.jp

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Hirokazu TsukayaProfessor

Born in Kanagawa Prefecture, Japan. He has been a plant lover since his childhood. While his main field of interest is developmental biology, he is also involved in phylogenetic systematics, especially field surveys of fungus-parasitic plants in tropical Asia.

tsukaya [at:mark] bs.s.u-tokyo.ac.jp

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Hiroyuki KogaAssistant professor
Hiroyuki KogaAssistant professor
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Hokuto NakayamaAssistant professor

hokuto [at] bs.s.u-tokyo.ac.jp

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Hokuto NakayamaAssistant professor

hokuto [at] bs.s.u-tokyo.ac.jp

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