"Tropical crop genetic resources"
Advancement of tropical crop genetic resources utilization through the development of database, technologies and research networking

Related Research Program



JIRCAS maintains diverse genetic resources of sugarcane, indica rice, tropical fruit trees, and Brachiaria (tropical grass) at the Tropical Agriculture Research Front in Ishigaki Island, a subtropical environment. These tropical crops play an important role as food, energy production, calorie and nutrient sources, cash crops, and fodder in the production areas. Amid concerns about global climate change, sustainable and stable production of these crops is an urgent issue. The introduction of tropical crops and their cultivation and dissemination technologies is expected to be one of the measures to combat global warming in Japan, and will contribute to the expansion of production areas and diversification of food and nutrient sources.


This project aims to create a shared resource of information, technology and materials, and contribute to the promotion of sustainable production under unstable environmental conditions, as well as production and utilization in Japan through the research networking of tropical crop genetic resources to share issues with domestic and overseas organizations, and development of varieties and technologies that take advantage of the diversity.

Research Themes

  • Organization of diversity information and establishment of collaboration for advanced utilization of genetic resources
  • Development of evaluation methodologies and functional analysis of genetic resources
  • Development of new varieties and breeding materials using genetic resources, and development of cultivation techniques for utilization
  • Domestic research collaboration to promote the utilization of genetic resources

Target Countries

Thailand, Philippines, Laos, Myanmar, Japan (and other countries/regions covered through external project collaborations)

Target Beneficiaries

Farmers in the target area, staffs of technical extension offices, local government and administrative agencies, research institutions for agriculture and genetic resources, seed suppliers, processors, international organizations, etc.

Project Leader

YAMANAKA Shinsuke (Tropical Agriculture Research Front)


Related Pages


Philippine Sugar Regulatory Administration Officials Visit JIRCAS

On March 24–30, 2024, JIRCAS welcomed visitors from the Sugar Regulatory Administration (SRA) of the Department of Agriculture of the Philippines. Ms. Ma. Mitzi V. Mangwag, Board Member and Acting Administrator, together with Atty. Ignacio S. Santillana, Deputy Administrator, visited the Tropical Agricultural Research Front (TARF) in Ishigaki Island and JIRCAS Headquarters in Tsukuba. JIRCAS and SRA are collaborating on three projects: ‘Climate change measures in Monsoon Asia,' ‘Yama-Sato-Umi agroecosystem connectivity', and 'Tropical crop genetic resources.'

Indonesia’s PT PG Rajawali I Delegation Visits TARF

A delegation from Indonesia's PT PG Rajawali, led by Dr. Nanik Soelistyowati, Operational Director, along with 11 accompanying members, paid a visit to the Tropical Agriculture Research Front (TARF) on November 14, 2023.

51st TARF Public Lecture Successfully Held on September 12

The 51st TARF Public Lecture entitled "Exploring the Diversity of Tropical Fruit Trees Around the World" was successfully held at the Ishigaki City Health and Welfare Center on Tuesday, September 12, 2023. The event was attended by 52 people.

Press Release

Event, Symposium

- (JST)
Exploring TARF Research in Ishigaki Island ! ~The 17th TARF Online Lecture~
The 51st TARF Public Lecture
―Exploring the Diversity of Tropical Fruit Trees Around the World―
Ishigaki City Health and Welfare Center
(Tonoshiro 1357-1, Ishigaki City, Okinawa 907-0004)
JIRCAS-FFTC Workshop Innovation and Networking of Sugarcane Research for Future Sugarcane Industry in Asia Pacific Region
Registration period:
- (JST)

Research Highlights