Genetic Resources Unit
Most of the world considers rice Asian in origin, but rice also has deep African roots. While Oryza sativa was domesticated in Asia, the only other domesticated species, O. glaberrima, is African rice.
AfricaRice’s genebank currently contains almost 22,000 accessions, 85% of which originated in Africa. In addition to the two cultivated rice species, these include the five African crop wild relatives. Long-term conservation is carried out at its new genebank at Bouaké, Côte d’Ivoire.
Characterisation and evaluation of crop diversity are major activities at AfricaRice, with special attention being given to screening for resistance to major diseases and environmental stresses. As a result, genes for resistance to diseases and pests such as rice yellow mottle virus (RYMV), blast and African rice gall midge are now identified. The GRU is collaborating in studies to use high-throughput precision phenotyping to identify further useful traits. Early flowering and tolerance of stagnant flooding are traits that are also being explored in the collections.
Other important activities include the restoration of lost crop diversity to countries affected by war, provision of conservation services to NARS, and training and capacity building.
A formal germplasm health unit is in the process of being set up.
Useful information
Genebank Manager: Marie-Noelle Ndjiondjop
Key staff: Genebank researchers: Fatima Bachabi, Dro Daniel Tia, Goungoulou Alphonse Junior, Kpeki Bienvenu.
Key performance indicators of CGIAR genebanks, 2012-2018
HINT: Use the search key to filter the data. For descriptions of performance indicators, click here.| Indicator | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 |
|---|---|---|---|---|---|---|
| Total number of accessions | 19,983 | 19,983 | 19,954 | 21,300 | 21,300 | 21,300 |
| Total number of accessions that are currently available | 14,000 | 15,596 | 16,371 | 17,969 | 18,889 | 19,421 |
| Number of seed accessions | 19,983 | 19,983 | 19,954 | 21,300 | 21,300 | 21,300 |
| Number of vegetatively propagated accessions | 0 | 0 | 0 | 0 | 0 | 0 |
| Number of live plant accessions | 0 | 0 | 0 | 0 | 0 | 0 |
| Number of seed accessions held in long-term storage and safety duplicated at two levels | 5,382 | 5,536 | 8,046 | 10,453 | 13,144 | 13,144 |
| Number of vegetatively-propagated accessions in cryopreservation or safety duplicated as in vitro | 0 | 0 | 0 | 0 | 0 | 0 |
Genebank operations, 2012-2018
HINT: Use the search key to filter the data| Indicator | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 |
|---|---|---|---|---|---|---|---|
| Number accessions received | 451 | 244 | 871 | 127 | 171 | 0 | 24 |
| Number accessions regenerated | 237 | 1,818 | 1,597 | 712 | 164 | 920 | 532 |
| Number accessions multiplied | 1,800 | 735 | 1,412 | 2,086 | 4,136 | 718 | 3,700 |
| Number accessions health tested | 450 | 595 | 547 | 1,276 | 700 | 1,064 | 1,705 |
| Number accessions cleaned | 450 | 595 | 547 | 1,276 | 700 | 0 | - |
| Number accessions viability tested | 1,200 | 2,500 | 3,596 | 6,984 | 6,972 | 4,075 | 1,730 |
Number of samples distributed to users within and outside the CGIAR, 2012-2018
HINT: Use the search key to filter the data. For descriptions of performance indicators, click here.| Indicator | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 |
|---|---|---|---|---|---|---|
| Number of samples distributed within the CGIAR | 8,149 | 11,389 | 1,073 | 3,682 | 396 | |
| Number of samples distributed outside the CGIAR | 5,400 | 9,146 | 868 | 721 | 631 | |
| Total number of samples distributed | 13,549 | 20,535 | 1,941 | 4,403 | 1,027 | 1,405 |
| Number of accessions distributed within the CGIAR | 4,370 | 1,802 | 941 | 2,892 | 396 | 952 |
| Number of accessions distributed outside the CGIAR | 2,072 | 3,935 | 378 | 491 | 631 | 277 |
| Total number of accessions distributed | 6,442 | 5,737 | 1,319 | 3,383 | 1,027 | 1,229 |
Publications by AfricaRice 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 |
|---|---|---|---|
| Cubry, P., Tranchant-Dubreuil, C., Thuillet, A.-C., Monat C., Ndjiondjop, M.-N., Labadie, K., Cruaud, C., Engelen, S., Scarcelli, N., Rhoné, B., Burgarella, C., Dupuy, C., Larmande, P., Wincker, P., François, O., Sabot, F., Vigouroux, Y. | The rise and fall of African rice cultivation revealed by analysis of 246 new genomes. | Current Biology | READ |
| Lv, S., Wu, W., Wang, M., Meyer, R.S., Ndjiondjop, M.-N., Tan, L., Zhou, H., Zhang, J., Fu, Y., Cai, H., Sun, C., Wing, R.A., Zhu, Z. | Genetic control of seed shattering during African rice domestication. | Nature Plant | READ |
| Ndjiondjop, M.N., Alachiotis, N., Pavlidis, P., Goungoulou, A., Kpeki, S.B., Zhao, D., Semagn, K. | Comparisons of molecular diversity indices, selective sweeps and population structure of African rice with its wild progenitor and Asian rice. | Theoretical and Applied Genetics: International Journal of Plant Breeding Research | READ |
| Ndjiondjop, M.N., Semagn, K., Sow, M., Manneh, B., Gouda,A.C., Kpeki, S.B., Pegalepo, E., Wambugu, P., Sie, M., Warburton, M.L. | Assessment of genetic variation and population structure of diverse rice genotypes adapted to lowland and upland ecologies in africa using SNPs. | Frontiers in Plant Science | READ |
| Ndjiondjop, M.N., Semagn, K., Zhang, J., Gouda, A.C., Kpeki, S.B., Goungoulou, A., Wambugu, P., Dramé, K.N., Bimpong, I.K., Zhao, D. | Development of species diagnostic SNP markers for quality control genotyping in four rice (Oryza L.) species. | Molecular breeding : new strategies in plant improvement | READ |
| Shaibu, A.A., Uguru, M.I., Sow, M., Maji, A.T., Ndjiondjop, M.N., Venuprasad, R. | Screening African rice (Oryza glaberrima) for tolerance to abiotic stresses: II lowland drought. | Crop Science | READ |
| Ndjiondjop, M.N., Wambugu, P., Sangare, J., Gnikoua, K. | The effects of drought on rice cultivation in sub-Saharan Africa and its mitigation: A review. | African Journal of Agricultural Research | READ |
| Ndjiondjop, M.N., Alachiotis, N., Pavlidis, P. ,Goungoulou A, Kpeki SB., Zhao D, Semagn K | Comparisons of molecular diversity indices, selective sweeps and population structure of African rice with its wild progenitor and Asian rice. | Theoretical and Applied Genetics: International Journal of Plant Breeding Research | READ |
Publications by AfricaRice 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 |
|---|---|---|---|
| Shaibu, A.A., Uguru, M.I., Sow, M., Maji, A.T., Ndjiondjop, M.N., Venuprasad, R. | Screening African rice (Oryza glaberrima) for tolerance to abiotic stresses: II lowland drought. | Crop Science | READ |
| Monat, C., Pera, B., Ndjiondjop, M.N., Sow, M., Tranchant-Dubreuil, C., Bastianelli, L., Ghesquière, A., Sabot, F. | De novo assemblies of three Oryza glaberrima accessions provide first insights about pangenome of African rice. | Genome Biology and Evolution Advance | READ |
| Kam, H., Ndjiondjop, M.N., Sanou, J., Sow, M., Ouedraogo, I., Laing, M. | Diversity assessment and geographical variability of rice landraces collected from Burkina Faso. | International Journal of Development and Sustainability | READ |
| Kam, K., Ndjiondjop, M.N., Liang, M.D., Ahmadi, N. | Molecular characterisation and diversity analysis of burkina faso rice landraces using 23 microsatellite markers and establishment of a core collection. | International Journal of Current Research | READ |
| Ndjiondjop, M.N., Semagn, K., Gouda, A.C., Kpeki, S.B., Dro Tia, D., Sow, M., Goungoulou, A., Sie, M., Perrier, X., Ghesquiere, A., Warburton, M.L. | Genetic variation and population structure of oryza glaberrima and development of a mini-core collection using DArTseq. | Frontiers in PLant Science | READ |