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World Agroforestry Centre (ICRAF)

Genetic Resources Unit

The Genetic Resources Unit of the World Agroforestry Center (ICRAF) conserves a wide diversity of about 190 species. These are wild, partially domesticated and domesticated trees used in agroforestry systems to supply fruit, timber, medicines and other products.

Genebank technician working at ICRAF’s facilities in Nairobi, Kenya.
Genebank technician working at ICRAF’s facilities in Nairobi, Kenya. Credit: Shawn Landersz

Many accessions are maintained in field genebanks managed in collaboration with national partners. The field genebanks supply propagating material to local partners in addition to gathering valuable data on the performance of the accessions.

The genebank works closely with research partners to supply agroforestry tree diversity for ICRAF domestication programs and other researchers.

In addition, ICRAF maintains a unique collection of African dryland woody-fodder species.

ICRAF staff carry out basic tests for diseases of quarantine risk. The genebank relies on national partners to monitor plant health in the field genebanks.

Useful information

Leader in Tree Diversity, Domestication and Delivery: Ramni Jamnadass
Head of genebank: Alice Muchugi
Seed scientist: Zakayo Kinyanjui
Genebank Database Officer: Simon Kang’ethe

Forages

Multipurpose trees

Key performance indicators of CGIAR genebanks, 2012-2018

HINT: Use the search key to filter the data. For descriptions of performance indicators, click here.
Crop Indicator 2012 2013 2014 2015 2016 2017 2018
Fruit trees Total number of accessions 3,600 3,600 3,600 3,600 3,600 3,600 8,246
Fruit trees Total number of accessions that are currently available 0 0 0 3,600 3,600 3,600 8,246
Fruit trees Number of seed accessions 3,600 3,600 3,600 3,600 3,600 3,600 8,246
Fruit trees Number of vegetatively-propagated accessions 0 0 0 0 0 0 -
Fruit trees Number of live plant accessions 0 0 0 0 0 0 8,246
Fruit trees Number of seed accessions held in long-term storage and safety duplicated at two levels 0 0 325 610 610 610
Fruit trees Number of vegetatively-propagated accessions in cryopreservation or safety duplicated as in vitro 0 0 0 0 0 0 -
Multipurpose trees Total number of accessions 5,307 5,490 4,577 5,345 5,594 5,997 6,336
Multipurpose trees Total number of accessions that are currently available 4,882 4,122 1,341 2,084 2,735 3,292 4,728
Multipurpose trees Number of seed accessions 5,307 5,490 4,577 5,345 5,594 5,997 6,336
Multipurpose trees Number of vegetatively-propagated accessions 0 0 0 0 0 0 -
Multipurpose trees Number of live plant accessions 0 0 0 0 0 0
Multipurpose trees Number of seed accessions held in long-term storage and safety duplicated at two levels 0 0 0 777 777 777 1,085
Multipurpose trees 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
Crop Indicator 2012 2013 2014 2015 2016 2017 2018
Fruit trees Number accessions received 0 18 12 0 131 0 -
Fruit trees Number accessions regenerated 0 0 0 0 0 0
Fruit trees Number accessions multiplied 0 0 0 119 0 0
Fruit trees Number accessions health tested 0 2,120 1,480 1,544 3,600 398 8,246
Fruit trees Number accessions cleaned 0 0 0 0 520 0
Fruit trees Number accessions viability tested 0 0 0 0 0 0
Multipurpose trees Number accessions received 190 50 48 202 261 212 15
Multipurpose trees Number accessions regenerated 0 0 0 0 0 0 -
Multipurpose trees Number accessions multiplied 389 0 30 0 0 0
Multipurpose trees Number accessions health tested 290 35 103 117 298 736 531
Multipurpose trees Number accessions cleaned 0 0 0 0 0 0 -
Multipurpose trees Number accessions viability tested 409 112 203 928 1,162 917 644

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.
Crop Indicator 2012 2013 2014 2015 2016 2017 2018
fruit trees Number of samples distributed within the CGIAR 260 736 2,844 1,529 5,745 6,972 577
fruit trees Number of samples distributed outside the CGIAR 0 622 601 1,682 7,387 2,069 2,069
fruit trees Total number of samples distributed 260 1,358 3,445 3,211 13,132 9,041 2,646
fruit trees Number of accessions distributed within the CGIAR 45 66 132 226 37 133 65
fruit trees Number of accessions distributed outside the CGIAR 0 130 77 64 148 149 149
fruit trees Total number of accessions distributed 45 196 209 290 185 282 214
multip trees Number of samples distributed within the CGIAR 401 88 77 139 82 37 28
multip trees Number of samples distributed outside the CGIAR 332 268 232 408 359 890 885
multip trees Total number of samples distributed 733 356 309 547 441 927 913
multip trees Number of accessions distributed within the CGIAR 230 51 45 56 42 26 17
multip trees Number of accessions distributed outside the CGIAR 141 92 75 56 59 298 113
multip trees Total number of accessions distributed 371 143 120 112 101 324 113
all crops Number of samples distributed within the CGIAR 661 824 2,921 1,668 5,827 7,009
all crops Number of samples distributed outside the CGIAR 332 890 833 2,090 7,746 2,959
all crops Total number of samples distributed 993 1,714 3,754 3,758 13,573 9,968
all crops Number of accessions distributed within the CGIAR 275 117 177 282 79 159
all crops Number of accessions distributed outside the CGIAR 141 222 152 120 207 447
all crops Total number of accessions distributed 416 339 329 402 286 606

Publications by ICRAF 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
Tata,H. L., Muchugi, A., Kariba, R., Van Noordwijk, M. Genetic diversity of Dyera polyphylla (Miq.) Steenis populations used in tropical peatland restoration in Indonesia. Mires and Peat READ
Nyoka, B.I., Kamanga, R., Njoloma, J., Jamnadass, R., Mng'omba, S.A., Muwanje, S. Quality of tree seedlings produced in nurseries in Malawi: an assessment of morphological attributes. Forests, Trees and Livelihoods READ
Muriira, N., Muchugi, A., Yu, A., Xu, J. C., Liu, A. Genetic diversity analysis reveals genetic differentiation and strong population structure in Calotropis plants. Scientific reports READ
Chang, Y., Liu, H., Liu, M., Liao, X., Kumar Sahu, S., Fu, Y., Song, B., Cheng, S., Kariba, R., Muthemba, S., Hendre, P., Mayes, S., Kuan Ho, W., E.J. Yssel, A., Kendabie, P., Wang Linzhou Li, S., Muchugi, A., Jamnadass, R., Lu, H., Peng,S., Van Deynze, A., Simons, A., YanaShapiro, H.,Van de Peer, Y., Xu, X., Yang,H.,Wang, J., Liu, X. The draft genomes of five agriculturally important African orphan crops. Giga Science READ
Cornelius, J.P., Pinedo-Ramírez, R., Sotelo Montes, C., Ugarte-Guerra, L.J., Weber, J.C. Efficiency of early selection in Calycophyllum spruceanum and Guazuma crinita, two fast-growing timber species of the Peruvian Amazon. Canadian Journal of Forest Research
READ
Alain, T., Ebenezar, A., Roger, L., Zacharie, T., Van Damme, P., Daniel, O., Ramni, J. Effects of pre-severance irradiance on the growth of Allanblackia floribunda Oliv. stockplants and on the subsequent rooting capacity of leafy stem cuttings. Journal article (New Forests) READ
Tiep, H.V., Thuong, H., Nguyen, L., Thi Lua, H. Van Thuan, V., Thi Kieu, L., Carsan, S., Degrande, A., Catacutan, D., Harwood, C. Domestication of Docynia indica in Vietnam. Forests, Trees and Livelihoods READ

Publications by ICRAF 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
Tata,H. L., Muchugi, A., Kariba, R., Van Noordwijk, M. Genetic diversity of Dyera polyphylla (Miq.) Steenis populations used in tropical peatland restoration in Indonesia. Mires and Peat READ
Cornelius, J.P., Pinedo-Ramírez, R., Sotelo Montes, C., Ugarte-Guerra, L.J., Weber, J.C. Efficiency of early selection in Calycophyllum spruceanum and Guazuma crinita, two fast-growing timber species of the Peruvian Amazon. Canadian Journal of Forest Research
READ
Bazié, P., Ky-Dembele, C., Jourdan, C., Roupsard, O., Zombré, G., & Bayala, J Synchrony in the phenologies of fine roots and leaves of Vitellaria paradoxa in different land uses of Burkina Faso. Agroforestry Systems READ
Tsobeng, A., Asaah, E., Tchoundjeu, Z., Van Damme, P., Ofori, O., Jamnadass, R. Growth, flowering and fruiting of stecklings, grafts and seedlings of Allanblackia floribunda Oliver (Clusiaceae). Agroforestry Systems READ
Roshetko, J.M., Dawson I.K., Urquiola, J., Lasco, R.D., Leimona, B., Weber, J.C., Bozzano, M., Lillesø, J.P.B., Graudal, L., Jamnadass, R. To what extent are genetic resources considered in environmental service provision? A case study based on trees, carbon sequestration and the Clean Development Mechanism. Climate and Development READ
Gachuiri, A.N., Carsan, S., Karanja, E., Parmutia, M., Kuyah, S. Diversity and importance of local fodder tree and shrub resources in mixed farming systems of central Kenya. Forests, Trees and Livelihoods READ
Muthai, K., Karori, M., Muchugi, A., Indieka, A.,Dembele, C., Mng’omba, S., Jamnadass, R. Nutritional variation in baobab (Adansonia digitata L.) fruit pulp and seeds based on Africa geographical regions. Journal of Food Science and Nutrition READ
Minja, R.R., Kimaro, A.A., Mpanda, M., Moshy, S., Mwaijande, V.,Ngereza,
A., Ambrose, J., Ndee, A., Kihula, B., Nyalusi, G.
Effects of rootstock type and scion cultivar on
grafting success and growth of mango
(Mangifera indica L.) seedlings.
Journal of Experimental Agriculture International READ
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