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Africa Rice Center (AfricaRice)

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.

A genebank worker take seed packets to the shelves in the new AfricaRice genebank in Mbe. Photo: Neil Palmer/Crop Trust

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.

Rice

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
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