The T.T. Chang Genetic Resources Center in The Philippines is the largest collection of rice diversity in the world, with more than 130,000 accessions, including genetic stocks, landraces and wild relatives.
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IRRI has a strong focus on seed conservation research, largely directed to greater longevity of seeds in storage and improved precision of predicted seed longevity. The T.T. Chang Genetic Resources Center is actively working to improve efficiency, for example by testing an automated seed sorter that will allow seed processing to take place overnight and thus free staff for other routine operations.
The genetic resources center also has a molecular genetics team working on genetic diversity and biosystematics, and using genetic markers to find beneficial versions of genes. Data are managed, maintained and made available through the International Rice Genebank Collection Information System (IRGCIS).
The Germplasm Health Unit is well established and is a recognized component of the Philippines quarantine and phytosanitary certification system with responsibilities to the Philippines Government as well as to IRRI.
Key staff
Head, T.T. Chang Genetic Resources Center: Venuprasad Ramaiah
Head of Germplasm Health Unit: Gururaj Kulkarni
Genebank Manager: Flora de Guzman
Key performance indicators of CGIAR genebanks, 2012-2019
HINT: Use the search key to filter the data. For descriptions of performance indicators, click here.| Indicator | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
|---|---|---|---|---|---|---|---|---|
| Base number of accessions in the collections (see description note) | 117,164 | 121,595 | 126,593 | 127,577 | 127,917 | 130,139 | 130,465 | 132,166 |
| Number of accessions that are viability tested, disease-free and with sufficient seed number for immediate distribution. | 107,202 | 113,194 | 117,061 | 120,131 | 120,074 | 119,763 | 120,734 | 122,250 |
| Number of seed accessions in the collections | 117,164 | 121,595 | 126,593 | 127,577 | 127,917 | 130,139 | 130,465 | 132,166 |
| Number of vegetatively-propagated accessions in the collections | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Number of live plant accessions | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 |
| Numbers of accessions in seed collections held in long-term storage and safety duplicated in a major genebank and in the Svalbard Global Seed Vault. | 114,446 | 114,886 | 114,886 | 116,294 | 116,294 | 116,294 | 116,290 | 116,286 |
| Number of vegetatively-propagated accessions (e.g., roots, tubers, bananas) in cryopreservation or safety duplicated as in vitro samples. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Of the accessions that are legally and physically available, how many are wild species? | 4,494 | 4,496 | 4,475 | |||||
| Base number of accessions in the collections (see description note) | 117,164 | 121,595 | 126,593 | 127,577 | 127,917 | 130,139 | 130,465 | 132,166 |
| Number of accessions that are viability tested, disease-free and with sufficient seed number for immediate distribution. | 107,202 | 113,194 | 117,061 | 120,131 | 120,074 | 119,763 | 120,734 | 122,250 |
| Number of seed accessions in the collections | 117,164 | 121,595 | 126,593 | 127,577 | 127,917 | 130,139 | 130,465 | 132,166 |
| Number of vegetatively-propagated accessions in the collections | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Number of live plant accessions | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 |
| Numbers of accessions in seed collections held in long-term storage and safety duplicated in a major genebank and in the Svalbard Global Seed Vault. | 114,446 | 114,886 | 114,886 | 116,294 | 116,294 | 116,294 | 116,290 | 116,286 |
| Number of vegetatively-propagated accessions (e.g., roots, tubers, bananas) in cryopreservation or safety duplicated as in vitro samples. | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Of the accessions that are legally and physically available, how many are wild species? | 0 | 0 | 0 | 0 | 0 | 4,494 | 4,496 | 4,475 |
Genebank operations, 2012-2019
HINT: Use the search key to filter the data| Indicator | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
|---|---|---|---|---|---|---|---|---|
| Number of accessions with passport & characterization data available | . | . | . | . | . | . | . | 132,126 |
| Number accessions received | 2,148 | 6 | 0 | 40 | 210 | 1,756 | 29 | 146 |
| Number accessions regenerated | 68 | 57 | 211 | 12 | 2,537 | 359 | 337 | 175 |
| Number accessions multiplied | 3,078 | 6,281 | 2,609 | 5,894 | 3,291 | 2,980 | 2,680 | 1,583 |
| Number accessions health tested | 18,351 | 6,120 | 6,360 | 11,934 | 8,065 | 8,789 | 11,022 | 9,321 |
| Number accessions cleaned | 201 | 208 | 160 | 39 | 1,376 | 99 | 162 | 20 |
| Number accessions viability tested | 18,521 | 28,453 | 54,670 | 41,309 | 21,570 | 24,364 | 24,098 | 23,871 |
| Number of accessions with passport & characterization data available | . | . | . | . | . | . | . | 132,126 |
Number of samples distributed to users within and outside the CGIAR, 2012-2019
HINT: Use the search key to filter the data. For descriptions of performance indicators, click here.| Indicator | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
|---|---|---|---|---|---|---|---|
| Total number external germplasm requests | 162 | 205 | 149 | 112 | 136 | 107 | 119 |
| Number of samples distributed internally within the Center and to another CGIAR Center | 31,467 | 17,625 | 28,730 | 13,423 | 26,682 | 19,662 | 4,545 |
| Number of samples distributed to users outside the CGIAR | 13,065 | 14,407 | 8,454 | 4,581 | 9,136 | 7,534 | 5,309 |
| Sum of samples distributed within and outside the CGIAR | 44,532 | 32,032 | 37,184 | 18,004 | 35,818 | 27,196 | 9,854 |
| Number of accessions distributed internally within the Center and to another CGIAR Center | 9,929 | 11,848 | 9,013 | 11,742 | 20,239 | 16,965 | 4,521 |
| Number of accessions distributed to users outside the CGIAR | 7,931 | 10,841 | 5,539 | 3,975 | 8,989 | 7,274 | 5,305 |
| Sum of accessions distributed within and outside the CGIAR | 17,860 | 22,689 | 14,552 | 15,717 | 29,228 | 24,239 | 9,826 |
| Total number external germplasm requests | 162 | 205 | 149 | 112 | 136 | 107 | 119 |
| Number of samples distributed internally within the Center and to another CGIAR Center | 31,467 | 17,625 | 28,730 | 13,423 | 26,682 | 19,662 | 4,545 |
| Number of samples distributed to users outside the CGIAR | 13,065 | 14,407 | 8,454 | 4,581 | 9,136 | 7,534 | 5,309 |
| Sum of samples distributed within and outside the CGIAR | 44,532 | 32,032 | 37,184 | 18,004 | 35,818 | 27,196 | 9,854 |
| Number of accessions distributed internally within the Center and to another CGIAR Center | 9,929 | 11,848 | 9,013 | 11,742 | 20,239 | 16,965 | 4,521 |
| Number of accessions distributed to users outside the CGIAR | 7,931 | 10,841 | 5,539 | 3,975 | 8,989 | 7,274 | 5,305 |
| Sum of accessions distributed within and outside the CGIAR | 17,860 | 22,689 | 14,552 | 15,717 | 29,228 | 24,239 | 9,826 |
Publications by IRRI genebank staff in 2019
Recent publications with at least one CGIAR genebank staff as author. HINT: Use the search key to filter the data.| Authors | Article title | Publication name | URL |
|---|---|---|---|
| Jae-Sung Lee, Marlina Velasco-Punzalan, Myrish Pacleb, Rocel Valdez, Tobias Kretzschmar, Kenneth L McNally, Abdel M Ismail, Pompe C Sta Cruz, N Ruaraidh Sackville Hamilton, Fiona R Hay | Variation in seed longevity among diverse Indica rice varieties | Annals of Botany | READ |
| Jae-Sung Lee, Jieun Kwak, Jun-Hyeon Cho, Dmytro Chebotarov, Mi-Ra Yoon, Jeom-Sig Lee, N. Ruaraidh Sackville Hamilton, Fiona R. Hay | A high proportion of beta-tocopherol in vitamin E is associated with poor seed longevity in rice produced under temperate conditions | Plant Genetic Resources | READ |
| Jae-Sung Lee, Nese Sreenivasulu, Ruaraidh Sackville Hamilton, Ajay Kohli | Brown Rice, a Diet Rich in Health Promoting Properties | Journal of Nutritional Science and Vitaminology | READ |
| Wang C, Yu H, Huang J, Wang WS, Faruquee M, Zhang F, Zhao X, Fu B, Chen K, Zhang H, Tai SS, Wei CC, Li J, McNally K, Alexandrov N, Gao X, Li Z, Xu J & Zheng TQ | Towards a deeper haplotype mining of complex traits in rice with RFGB v2.0 | Plant Biotechnology Journal | READ |
| Zapico F, Hernandez J, Borromeo T, McNally K, Dizon J, Fernando E | Traditional Agro-ecosystems in Southern Philippines: Vulnerabilities, Threats and Interventions | Int. J. of Disaster Resilience Built Env. | READ |
| Santos JD, Chebotarov D, McNally KL, Bartholomé J, Droc G, Billot C, Glaszmann JC | Fine scale genomic signals of admixture and alien introgression among Asian rice landraces | Genome Biology and Evolution | READ |
| Fuentes RR, Chebotarov D, Duitama J, Smith S, De la Hoz JF, Mohiyuddin M, Wing RA, McNally KL, Tatarinova T, Grigoriev A, Mauleon R, Alexandrov N | Structural variants in 3,000 rice genomes | Genome Research | READ |
| Cal A, Sanciangco M, Rebolledo MC, Luquet D, Torres R, McNally K, Henry A | Leaf morphology, rather than plant water status, underlies genetic variation of rice leaf rolling under drought | Plant Cell Environment | READ |
| Venske E, Stafen CF, de Oliveira VF, Quecini VM, da Maia LC, de Magalhães AM, McNally KL, de Oliveira AC, Pegoraro C | Genetic diversity, linkage disequilibrium and population structure in a working panel of Brazilian rice accessions | J Appl Genet | READ |
| OA Agbeleye, MR Olubiyi, BO Ehirim, AO Shittu, OL Jolayemi, VO Adetimirin, OJ Ariyo, KA Sanni, and R Venuprasad. | Screening African rice (O. glaberrima Steud.) for tolerance to Abiotic Stress. III. Flooding. | Sabrao Journal of Breeding and Genetics | READ |
| N Kuya, J Sun, K Iijima, R Venuprasad and T Yamamoto, | Novel method for evaluation of anaerobic germination in rice and its application to diverse genetic collections. | Breeding Science | READ |
| A Kohli, BPM Swamy and R Venuprasad, 2019. | Interfacing conventional and modern approaches to speedup and focus plant breeding, | Rural 21 | READ |
Publications by IRRI genebank staff in 2018
Recent publications with at least one CGIAR genebank staff as author. HINT: Use the search key to filter the data.| Authors | Article title | Publication name | URL |
|---|---|---|---|
| Halewood, M., Chiurugwi, T., Sackville Hamilton, R., Kurtz, B., Marden, E., Welch, E., Michiels, F., Mozafari, J., Sabran, M. ,Patron, N., Kersey, P., Bastow, R., Dorius, S., Dias, S,. McCouch, S., Powell, W. | Tansley review: Plant genetic resources for food and agriculture: opportunities and challenges emerging from the science and information technology revolution. | New Phytologist | READ |
| Halewood, M., Lopez Noriega, I., Ellis, D., Roa, C., Rouard, M., Sackville Hamilton, R. | Using Genomic sequence information to increase conservation and sustainable use of crop diversity and benefit-sharing. | Biopreservation and Biobanking | READ |
| Norton, G.J., Travis , A.J., Douglas, A., Fairley, S., De Paiva Alves, E., Naredo, E., McNally, K.L., Sumon, M., Islam, R., Price, A.H. | Genome wide association mapping of grain and straw biomass traits in the rice Bengal and Assam Aus Panel (BAAP) grown under alternate wetting and drying and permanently flooded irrigation. | Frontiers in Plant Science | READ |
| Wang, D., Agosto-Perez, F., Chebotarov, D., Shi, Y., Marchini, J., Fitzgerald, M., McNally, K.L., Alexandrov, A., McCouch, S.R. | An imputation platform to enhance integration of rice genetic resources. | Nature Communications | READ |
| Wang, W.S., Mauleon, R., Hu, Z.Q., Chebotarov ,D., Tai, S.S., Wu, Z.C., Li, M., Zheng, T.Q., Fuentes, R.R., Zhang, F., Mansueto, L., Copetti, D., Sanciangco, M., Palis, K.C., Xu, J.L., Chen, S., Fu, B.Y., Zhang, H.L., Gao, Y.M., Zhao, X.Q., Shen, F., Cui, X., Yu, H., Li, Z.C., Chen, M.L., Detras, J., Zhou, Y.L., Zhang, X.Y., Zhao, Y., Kudrna, D., Wang, C.C., Li, R., Jia, B., Lu, J.Y., He, X.C., Dong, Z.T., Xu, J.B., Li, Y.H., Wang, M., Shi, J.X., Li, J., Zhang, D.B., Lee , S.H., Hu, W.S., Poliakov, A., Dubchak, I., Ulat, V.J., Borja, F.N., Mendoza, J.R., Al, J., Li, J., Gao, Q., Niu, Y.C., Yue, Z., Naredo, M.E.B., Talag, J., Wang, X.Q., Li, J.J., Fang, X.D., Yin, Y., Glaszmann, J.C., Zhang, J.W., Li, J.Y., Hamilton, R.S., Wing, R.A., Ruan, J., Zhang, G.Y., Wei, C.C., Alexandrov, N., McNally, K.L.*, Li, Z.K., Leung, H. | Genomic variation in 3,010 diverse accessions of Asian cultivated rice. | Nature | READ |
| Scheben, A., Chan, C.K.K., Mansueto, L., Mauleon, R., Larmande, P., Alexandrov, N., Wing, R., McNally, K.L., Quesneville, H., Edwards, D. | Comparing progress in single-access information systems for wheat and rice crop improvement. | Briefings in Bioinformatics | READ |
| Stein, J.C., Yu, Y.S., Copetti, D., Zwick, D.J., Zhang, L., Zhang, C.G., Chougule, K., Gao, D.Y., Iwata, A., Goicoechea, J.L., Wei, S., Wang, J., Liao, Y., Wang, M.H., Jacquemin, J., Becker, C., Kudrna, D., Zhang, J.W., Londono, C.E.M., Song, X., Lee, S.H., Sanchez, P., Zuccolo, A., Ammiraju, J.S.S., Talag, J., Danowitz, A., Rivera, L.F., Gschwend, A.R., Noutsos,C., Wu, C.C., Kao, S.M., Zeng, J.W., Wei, F.J., Zhao., Q., Feng, Q., E.L., Baidouri., M., Carpentier, M.C., Lasserre, E., Cooke., R., da Rosa Farias, D., da Maia, L.C., dos Santos, R.S., Nyberg, K.G., McNally, K.L., Mauleon, R., Alexandrov, N, Schmutz J, Flowers D, Fan CZ, Weigel D., Jena, K.K., Wicker, T., Chen, M.S., Han, B,, Henry, R., Hsing, Y.I.C., Kurata, N,, Costa de Oliveira, A., Panaud, O., Jackson, S.A., Machado, C.A., Sanderson, M.J., Long, M.Y., Ware, D., Wing, R.A. | Genomes of 13 domesticated and wild rice relatives unveil genetic conservation, turnover and innovation across the genus Oryza. | Nature Genetics | READ |
| Hay, F.R.,Valdez, R., Lee, J.S., Cruz, P.S. | Seed longevity phenotyping: recommendations on research methodology. | Journal of Experimental Botany | READ |
| Lee, J.S., Wissuwa, M., Zamora, O.B., Ismail, A.M. | Novel sources of aus rice to zinc deficiency tolerance identified through association analysis using high- density SNP array. | Rice Science | READ |
| Timple, S.E., Hay, F.R. | High-temperature drying of seeds of wild Oryza species intended for long-term storage. | Seed Science and Technology | READ |
Publications by IRRI genebank staff in 2017
Recent publications with at least one CGIAR genebank staff as author. HINT: Use the search key to filter the data.| Authors | Article title | Publication name | URL |
|---|---|---|---|
| Mansueto, L., Fuentes, R.R., Borja, F.N., Detras, J., Abriol-Santos, J.M., Dmytro Chebotarov, D., Millicent Sanciangco, M., Palis, K., Copetti, D., Poliakov, A., Dubchak, I., Solovyev, V., Wing, R.A., Sackville Hamilton, R., Mauleon, R., McNally, K.L., Alexandrov, N. | Rice SNP-seek database update: new SNPs, indels, and queries | Nucleic Acids Research | READ |
| Naredo, M.E.B., Mercado, S.M.Q., Banaticla-Hilario, M.C.N., Berdos, M.L., Rodriguez, M.A., McNally, K.L., Sackville Hamilton, N. | Genetic diversity patterns in ex situ collections of Oryza officinalis wall. ex watt revealed by morphological and microsatellite markers. | Genetic Resources and Crop Evolution | READ |
| Catolos, M., Sandhu, N., Dixit, S., Shamsudin, N.A.A., Naredo, M.E.B., McNally, K.L., Henry, A., Diaz, M.G., Kumar, A. | Genetic loci enhancing grain yield and root development under variable rice cultivation conditions. | Frontiers of Plant Science | READ |
| Whitehouse, K.J., Hay, F.R., Ellis, R.H. | High-temperature stress during drying improves subsequent rice (Oryza sativa L.) seed longevity. | Seed Science Research | READ |
| Lee, J.S., Kwak, J., Yoon, M.R., Lee, J.S., Hay F.R. | Contrasting tocol ratios associated with seed longevity in rice variety groups. | Seed Science Research | READ |
| Timple, S.E., Hay, F.R. | High-temperature drying of seeds of wild Oryza species intended for long-term storage. | Seed Science and Technology | READ |
