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Eiji Nitasaka Last modified date:2021.06.17

Associate Professor / Information biology
Department of Biology
Faculty of Sciences

Graduate School
Undergraduate School
Other Organization

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Descrption about mutant strains, genes, and literatures of the Japanese morning glory .
Academic Degree
Doctor of Science
Country of degree conferring institution (Overseas)
Field of Specialization
Genetics/Plant Molecular Genetics
Total Priod of education and research career in the foreign country
Outline Activities
We are conducting genetic and molecular biological research mainly on Ipomoea nil, which is a unique material for genetic research in Japan.
Specifically, by isolating the genes responsible for the mutants of Ipomoea nil, we are elucidating the mechanisms of plant morphogenesis and studying the structure and transposition mechanisms of the transposons that induce the mutations.
In addition, as the representative institution of the National BioResource Project "Morning Glory" of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), we collect and maintain mutant lines and their information, conduct genetic analysis, maintain genome-related information, collect closely related species, and analyze phylogenetic relationships.
 In addition, mutants of the morning glory are originated in Edo period and are extremely valuable. Most of them are preserved only in this laboratory in Japan. For this reason, we are cooperating with museums and botanical gardens around Japan, such as the National Museum of Japanese History (Sakura City, Chiba Prefecture), for display and analysis of literature.
Research Interests
  • Studies on morphological mutants and their responsible transposable elements in the Japanese morning glory
    keyword : Morning glory, Ipomoea nil, transposon, transposable element
  • Studies on body color mutations in reptiles
    keyword : reptile snake albino
Current and Past Project
  • A national project to develop a systematic collection, preservation, and provision system for bioresources that are widely used as experimental materials in life science research and that are recognized as particularly important by the government.
Academic Activities
1. Eiji Nitasaka, Insertion of an En/Spm-related transposable element into a floral homeotic gene DUPLICATED causes a double flower phenotype in the Japanese morning glory, Plant J., 10.1046/j.1365-313X.2003.01896.x, 36, 4, 522-531, Vol 36, 522-531, 2003.11.
Works, Software and Database
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Educational Activities
Graduate Education: Research guidance, education on molecular biological experimental methods, and thesis reading are provided for graduate students from master's to doctoral level. In the Graduate School of Systems Life Sciences, I teach Molecular Life Sciences I, Advanced Molecular Life Sciences II, Life Science I, and Life Science II in collaboration with other faculty members.
Undergraduate Education: Evolutionary Biology in the first semester of the second year teaches basic genetics, Molecular and Cellular Biology in the second semester of the second year teaches cell biology with a focus on gene function, and Advanced Life Sciences in the first semester of the third year teaches recent topics in plant science and molecular biology with English literature.
KIKAN (Arts and Science) Education: In the second semester of the first year, lectures are given on basic biology.
Professional and Outreach Activities
I have cooperated with museums and botanical gardens in Japan and abroad in the display of mutants of morning glories, and has written and appeared in media (newspapers, TV, magazines, etc.) related to morning glories. .