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Plant Genetic Resources Lab
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A lab that collects and analyzes rice genetic resources to understand how seeds work.
AboutAbout the lab
Collecting, creating, and preserving useful genetic resources.
The Plant Genetic Resources Lab conducts genetics and plant breeding research on collecting and generating useful genetic resources in crops, and on developing, preserving, and managing their traits.
The lab holds that crop improvement requires useful genetic resources, and that it is important both to collect cultivated varieties widely from around the world and to create resources by inducing artificial mutations and clarify their traits.
Specifically, the lab works on genetic analysis of how storage proteins accumulate in rice seeds, development of rice mutant lines, and the preservation and characterization of rice landraces.
Key terms
- Genetic resources
- Varieties and lines with useful genes that serve as material for crop breeding. This lab collects and preserves them and evaluates their traits.
- Storage proteins
- Proteins stored in seeds. In rice seeds, glutelin, prolamin, and globulin accumulate.
- Mutant lines
- Lines in which mutations have been induced in genes by treating fertilized egg cells with a mutagen. They serve as material for studying gene function.
ResearchResearch themes
Crop improvement depends on useful genetic resources, and this lab places importance on collecting cultivated varieties from around the world, creating resources through artificial mutation, and clarifying their traits. Its research covers rice seed storage proteins, rice mutant lines, and rice landraces.
*Illustrative imageAccumulation of storage proteins in rice seeds
Rice seeds store three types of storage proteins in structures within the cell called protein bodies. Using mutants, the lab investigates the function of genes that control the transport and accumulation of these proteins.
*Illustrative imageDevelopment of rice mutant lines
The lab maintains rice morphological mutant lines, created by treating fertilized egg cells with the mutagen MNU, as part of the National BioResource Project. The lines are published in Oryzabase, and a system is in place to distribute them to countries around the world.
*Illustrative imagePreservation and evaluation of rice landrace genetic resources
The lab preserves rice varieties collected from various temperate regions and continues to evaluate their traits. The collection includes valuable genetic resources that can no longer be obtained from farmers, and the preserved lines are published as a database.
MembersFaculty
The Plant Genetic Resources Lab consists of faculty members, JSPS Research Fellows, technical assistants, doctoral and master's students, and research students.As of 2025
- ProfessorTakahiko Kubo
- Assistant ProfessorTakehiko Ogura
VoicesStudent voices
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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: “Rice diversity” IRRI Images / CC BY 2.0 (cropped)
- Accumulation of storage proteins in rice seeds: “Basmati Rice 2” Gaurav Dhwaj Khadka / CC BY-SA 4.0 (cropped)
- Development of rice mutant lines: “Green rice sheaves planted in a paddy field with long shadows at golden hour in Don Det Laos” Basile Morin / CC BY-SA 4.0 (cropped)
- Preservation and evaluation of rice landrace genetic resources: “Matta Rice” Gaurav Dhwaj Khadka / CC BY-SA 4.0 (cropped)
- Related lab (Eukaryotic Cell Microbiology Lab): “ATCC strains of Candida albicans, Pichia kudriavzevii, and Candida parapsilosis on Chromagar after 7 days of incubation” Ajay Kumar Chaurasiya / CC BY 4.0 (cropped)
- Related lab (Silkworm Genetic Resources Lab): “Silk worm adult01” smartneddy / CC BY-SA 3.0 (cropped)
- Related lab (Tropical Crop Science and Environment Lab): “Portrait of an ant, profile view” Retro Lenses / CC BY 4.0 (cropped)
- Related lab (Medical Entomology Lab): “Adult deer tick(cropped)” Photo by Scott Bauer. (USDA ARS) / Public domain (cropped)
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