International Rice Genebank

Also known as: IRRI Genebank · International Rice Genebank Collection

Definition

The International Rice Genebank is the seed bank of the International Rice Research Institute (IRRI) at Los Baños, Laguna — the world’s largest collection of rice genetic diversity, holding the cultivated rices, African rice, and wild relatives on which global rice breeding and conservation depend. IRRI’s own current figure is 132,000 accessions housed in the genebank, and the Genesys global portal records 133,087 accessions for the institute, of which 126,606 are Oryza sativa, the Asian cultivated rice. (IRRI — official website (archived), Genesys — PHL001) The collection has been assembled since 1962, when IRRI began international collaborative collecting, and its dedicated facility was constructed in 1977 and significantly renovated and upgraded in 1994. (IRRI — Genetic Resources Center (archived)) The genebank operates under the International Treaty on Plant Genetic Resources for Food and Agriculture, supplying seed samples to requesters under the treaty’s conditions. (IRRI — International Rice Genebank (archived))

The genebank is the crop’s insurance policy and its working library at once: 128,186 of its accessions fall within the treaty’s multilateral system of access and benefit-sharing, 124,049 are available for distribution, and roughly 228,000 samples have been dispatched to 103 countries over the past quarter-century. (Genesys — PHL001) Its home institute’s history — the 1960 founding, the IR8 revolution, the CGIAR membership this wiki’s International Rice Research Institute entry documents — is the context; the genebank is the institute’s permanent collection, the part that exists to outlast every research program it serves.

Identities

Source	Identifier	URL
Wikipedia	N/A (redirects to International Rice Research Institute)	N/A
Wikidata	International Rice Genebank (Q117359359)	https://www.wikidata.org/wiki/Q117359359
DBpedia	N/A (redirects to International_Rice_Research_Institute)	N/A
ProductOntology	N/A	N/A
Wiktionary	N/A	N/A
Library of Congress Subject Headings (LCSH)	Gene banks, Plant (sh85053733)	https://id.loc.gov/authorities/subjects/sh85053733
MeSH	N/A	N/A
NCBI Taxonomy	N/A	N/A
AGROVOC	N/A	N/A
Google Scholar	International Rice Genebank IRRI germplasm Oryza sativa wild relatives accessions ITPGRFA Svalbard genetic resources conservation Los Baños	N/A
ConceptNet	N/A	N/A
OpenCyc	N/A	N/A

Also Known As

IRRI Genebank
International Rice Genebank Collection

Examples and Analogies

A lending library for the world’s rice: the genebank works like a national library’s reserve stack — countries deposit their varieties for safekeeping and for sharing, breeders request seeds under treaty conditions, and more than 228,000 samples have gone out to 103 countries, so the collection functions as a public good rather than a warehouse. (Genesys — PHL001, IRRI — International Rice Genebank (archived))
Two temperatures, two purposes: the base collection at −20°C holds vacuum-sealed seeds for the long term, while the active collection at 2–4°C holds foil-seeded packets for distribution — the archive and the reading room of the same institution, with viability tested every ten years for the base and five for the active collection and seed regenerated whenever germination falls below 85 percent. (IRRI — Genetic Resources Center (archived), IRRI — International Rice Genebank (archived))
A backup with a backup: about 95 percent of the genebank’s accessions are safety-duplicated at the Svalbard Global Seed Vault — 123,474 accessions — and at the United States’ National Center for Genetic Resources Preservation, the standard genebank practice of never keeping the world’s rice in one refrigerator. (Genesys — PHL001)
Verified genebank data:
Holdings: 132,000 accessions per IRRI’s own statistics; 133,087 recorded in Genesys; 126,606 of them Oryza sativa (IRRI — official website (archived), Genesys — PHL001)
Composition: the collection spans Oryza sativa (Asian rice, indica and japonica groups), Oryza glaberrima (African rice), twenty-four wild species found in Asia, Africa, Australia, and the Americas, and nine species from seven related genera; by type, about 38 percent are traditional cultivars and landraces, 11 percent breeding materials or advanced cultivars, and 3 percent wild relatives (IRRI — International Rice Genebank (archived), Genesys — PHL001)
Provenance: India (17,663 accessions), Laos (15,686), and Indonesia (10,245) are the most represented sources (Genesys — PHL001)
Timeline: collection since 1962; facility constructed 1977; significantly renovated and upgraded 1994; more than 90,000 samples by the early 2000s; more than 130,000 as of December 2018 (IRRI — Genetic Resources Center (archived), IRRI — International Rice Genebank (archived))
Access regime: 128,186 accessions in the ITPGRFA multilateral system; 124,049 available for distribution (Genesys — PHL001)
Data quality: average Passport Data Completeness Index of 7.49 in Genesys, with germplasm records managed through the International Rice Genebank Collection Information System (Genesys — PHL001, IRRI — International Rice Genebank (archived))

Usage Scenarios

1. Distributing Germplasm to Breeders and Researchers

National rice programs, universities, and companies request seed under the treaty’s conditions; the genebank’s distribution record — roughly 228,000 samples to 103 countries over 25 years, with 124,049 accessions currently available — is the working measure of its role in world rice improvement. (Genesys — PHL001, IRRI — International Rice Genebank (archived))

2. Conserving Diversity Against Genetic Erosion

The genebank exists because farmers’ traditional varieties disappear as improved varieties spread and wild species lose habitat — the erosion it counters by regenerating seed when viability drops below 85 percent and by maintaining wild species in dedicated screenhouses, more than 3,000 potted specimens in the early-2000s count. (IRRI — International Rice Genebank (archived), IRRI — Genetic Resources Center (archived))

3. Safety Duplication

Roughly 95 percent of the collection is duplicated at the Svalbard Global Seed Vault (123,474 accessions) and at the US National Center for Genetic Resources Preservation — the Arctic and American backups that would allow reconstruction of the collection after any Los Baños catastrophe. (Genesys — PHL001)

4. Feeding Breeding Programs

The collection underwrites the breeding science this wiki’s International Rice Research Institute and Golden Rice entries document: landraces supplying disease resistance and stress tolerance, glaberrima contributing traits to African rice improvement, and wild relatives as the reservoir of genes absent from cultivated pools — distributed for research and breeding, including commercial use, through the international network IRRI has operated since 1975. (IRRI — International Rice Genebank (archived), Wikipedia — IRRI)

5. Managing and Sharing Genebank Data

Curators maintain passport and characterization data in the International Rice Genebank Collection Information System and publish to the Genesys portal — the data layer with a 7.49 passport-completeness score that lets researchers worldwide search the collection before requesting a single seed. (IRRI — International Rice Genebank (archived), Genesys — PHL001)

Strategies

Conserve ex situ under an international treaty: holding the world’s rice diversity inside a treaty-governed multilateral system — 128,186 of the accessions — converts national germplasm into a shared research resource with standard access conditions rather than bilateral bargaining. (Genesys — PHL001, IRRI — International Rice Genebank (archived))
Split the collection by temperature and purpose: the −20°C base collection for permanence and the 2–4°C active collection for distribution let the same accessions be both preserved forever and lent continuously. (IRRI — Genetic Resources Center (archived), IRRI — International Rice Genebank (archived))
Duplicate everything that matters: near-total safety duplication at Svalbard and in the United States follows the genebank rule that no collection should exist in one place — the practice that makes the Los Baños facility’s losses recoverable. (Genesys — PHL001)
Regenerate on a viability trigger, not a calendar: testing every five to ten years and regrowing any accession below 85 percent germination keeps the collection alive without wasteful cycle-growing of healthy stock. (IRRI — International Rice Genebank (archived), Genesys — PHL001)
Collect where the diversity is: the provenance record — India, Laos, Indonesia at the top — reflects decades of targeted collecting partnerships with national programs, including the Laos collecting that added more than 10,000 samples from 1995. (Genesys — PHL001, IRRI — Genetic Resources Center (archived))

Security and Safety Measures

Cold-chain integrity as the core safeguard: the base collection at −20°C in vacuum-sealed aluminum cans and the active collection at 2–4°C in foil packets are engineered against the seed-aging arithmetic the genebank itself documents — seed at 95 percent initial viability held at 30°C and 13.5 percent moisture falls to 1 percent viability in five months. (IRRI — Genetic Resources Center (archived), IRRI — International Rice Genebank (archived))
Viability monitoring: scheduled germination testing — every five years for active-collection seed, every ten for base-collection seed — with regeneration below the 85 percent threshold. (IRRI — International Rice Genebank (archived))
Remote safety duplication: 123,474 accessions at Svalbard and further duplicates at the US National Center for Genetic Resources Preservation, about 95 percent coverage overall. (Genesys — PHL001)
Wild species under managed conditions: the wild relatives that cannot be maintained as conventional seed stocks are kept in screenhouses as living plants — the specialized custody that keeps the reservoir of uncultivated genes in the collection. (IRRI — Genetic Resources Center (archived))
Treaty-governed access: distribution under ITPGRFA conditions standardizes who may receive material and on what terms — the legal framework that protects both the depositing countries’ interests and the collection’s open operation. (IRRI — International Rice Genebank (archived))

Historical Context

The collection began with the institute: IRRI started international collaborative collecting in 1962, two years after its founding at Los Baños, and the breeding program that produced IR8 in 1966 drew on that early germplasm. The dedicated genebank facility was constructed in 1977 — the year the international system of agricultural research centers was consolidating — and was significantly renovated and upgraded in 1994. (IRRI — Genetic Resources Center (archived), Wikipedia — IRRI)

The collection then compounded across three decades: more than 90,000 samples of cultivated rice and wild species by the early 2000s, more than 130,000 by December 2018, and about 132,000 by the mid-2020s, with Laos alone contributing more than 10,000 samples from 1995. The genebank’s international standing traveled with its host: a review quoted by IRRI called it “a model for others,” and the collection joined the CGIAR genebank system and the Genesys data infrastructure that now publishes its holdings to the world. (IRRI — Genetic Resources Center (archived), IRRI — International Rice Genebank (archived), Genesys — PHL001)

The legal era matured around the biology. The collection is managed under the International Treaty on Plant Genetic Resources for Food and Agriculture, which placed 128,186 of the genebank’s accessions in its multilateral system and fixed the conditions under which seed leaves Los Baños; safety duplication matured in parallel, from the early backup at the USDA’s Fort Collins storage laboratory to the current 123,474 accessions in the Svalbard Global Seed Vault. The genebank enters its seventh decade as the standing collection of the world’s most important food crop — the institute’s permanent core, and the Philippine-hosted half of the global rice conservation system. (IRRI — International Rice Genebank (archived), Genesys — PHL001, IRRI — Genetic Resources Center (archived))

Challenges and Controversies

Genetic Erosion Versus Collection Growth

The genebank’s founding rationale — traditional varieties lost as farmers adopt modern ones, wild species lost to habitat destruction — remains unfinished: the collection grows precisely because the diversity it conserves keeps disappearing in the field, a race the genebank documents in its own conservation case. (IRRI — International Rice Genebank (archived))

Access, Benefit-Sharing, and the Multilateral System

Placing 128,186 accessions under the treaty’s multilateral system resolved the access question in principle, but the terms under which public collections share material — including for commercial use — remain a standing debate between source countries, researchers, and the seed industry; the genebank’s practice is distribution under treaty conditions, the framework the debate argues around. (Genesys — PHL001, IRRI — International Rice Genebank (archived))

The Maintenance Burden

Every accession is a permanent obligation — viability testing on a five-to-ten-year cycle, regeneration below 85 percent germination, wild species kept as living plants — so the genebank’s cost curve rises with its holdings while its funding rests on the international agricultural research system’s continuing commitment; the 1994 renovation records what deferred investment looks like at a facility of this kind. (IRRI — International Rice Genebank (archived), IRRI — Genetic Resources Center (archived))

Being the Single Largest Holder

As the biggest collection of rice genetic diversity in the world, the genebank concentrates responsibility as well as seeds — the reason for the 95-percent safety-duplication standard and the Svalbard deposits, and the standing question any single-site collection of a global crop must answer. (Genesys — PHL001, IRRI — International Rice Genebank (archived))