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Origin of Cultivated Plants Lab
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The lab reads the genomes of wheat, buckwheat, and yam to trace the origin and evolution of cultivated plants.
AboutAbout the lab
Cultivated plants are humanity's greatest cultural heritage.
The lab studies how cultivated plants arose and evolved.
Using a wide variety of cultivated plants from around the world collected through fieldwork, the lab analyzes genome sequences with bioinformatics.
Undergraduates are assigned to the Advanced Biological Science Course in their third year, and to this lab within the course in their fourth year (the graduate school is the Graduate School of Agriculture, Division of Applied Biosciences).
Key terms
- Domestication
- The process by which wild plants change into crops as people grow them
- Bioinformatics
- Methods that use computers to analyze large amounts of biological data, such as DNA sequences
ResearchResearch themes
The history of organisms, including cultivated plants, is written in their genomes. The lab analyzes the genome sequences of diverse cultivated plants from around the world, collected through fieldwork, to study the origin and evolution of cultivated plants.
*Illustrative imageSurveying the diversity of cultivated plants
The lab carries out natural-history research: it collects cultivated plants such as wheat, millets, buckwheat, yam, and rice, along with their closely related wild species, through field surveys, then grows, observes, and records them. It is also responsible for preserving genetic resources.
*Illustrative imageTracing origins through genomes
Using bioinformatics to examine genome sequences, the lab clarifies the relationships, origins, and evolution of cultivated plants and wild species at the genetic level. It has also isolated important genes involved in domestication and adaptation.
*Illustrative imageThe ongoing evolution of cultivated plants
Plants cultivated on a large scale are under strong selection from the organisms that cause diseases and pest damage, and they are still evolving today. Using cultivated plants, the lab studies the mechanisms of coevolution between organisms at the molecular level.
MembersFaculty
The lab's members are faculty, researchers, technical staff, technical assistants, administrative assistants, and doctoral, master's, and undergraduate students.
- Associate ProfessorToshiyuki Sakai
- Assistant ProfessorAoi Kudoh
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: “Field of buckwheat in Brazil” Jose.brenner / CC BY-SA 3.0 (cropped)
- Surveying the diversity of cultivated plants: “Regenerating local wheat and barley landraces ( )” Luigi Guarino from Rome, Italy / CC BY 2.0 (cropped)
- Tracing origins through genomes: “കാച്ചിൽ-കിഴങ്ങ്” Aruna at Malayalam Wikipedia / CC BY-SA 3.0 (cropped)
- The ongoing evolution of cultivated plants: “Millet 0” Amuzujoe / CC BY-SA 4.0 (cropped)
- Related lab (果樹園芸学分野): “Persimmon tree with many fruits - 1” KKPCW（Kyu3） / CC BY-SA 4.0 (cropped)
- Related lab (植物病理学分野): “Septoria-tritici” Maccheek / Public domain (cropped)
- Related lab (畜産資源学分野): “Longhorn cattle grazing marsh pasture - geograph.org.uk - 1520789” Evelyn Simak / CC BY-SA 2.0 (cropped)
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野): “Colony of Red spider mites (Tetranychus urticae)” Aleksey Gnilenkov from Moscow, Russia / CC BY 2.0 (cropped)
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