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International Maize and Wheat Improvement Center (CIMMYT)

Wellhausen-Anderson Genetic Resources Collections

CIMMYT manages diverse collections of maize and wheat.

A CIMMYT technician counts maize seeds in the CIMMYT genebank.
A CIMMYT technician counts maize seeds in the CIMMYT genebank. Credit: Getty Images Reportage photographer Juan Arrendodo

The wheat collection numbers about 150,000 accessions from more than 100 countries, and consists of bread wheat, durum wheat and triticale landraces, cultivars, genetic stocks, breeders’ materials and wild relatives. The maize collection of 28,000 accessions includes the world’s largest collection of maize landraces, created and maintained by farmers over many generations, as well as wild teosinte and Tripsacum wild relatives of maize.

CIMMYT is actively assessing the diversity of the maize and wheat seed collections using genomics technologies. Developing links between accession data and data from breeders are another focus of work. The genebank has been a pioneer in using GRIN-Global and in establishing a QMS. Several operations are certified to ISO 9001:2008 standard.

The Seed Health Unit ensures that all seed conserved in the genebank, as well as any seed imported to or exported from any of CIMMYT’s research locations, meets international phytosanitary standards. The Seed Health Unit has attained ISO/IEC 17025 accreditation.

Useful information

Genetic Resources Program director: Kevin Pixley
Maize germplasm bank manager: Denise Costich
Wheat germplasm bank manager: Tom Payne
Seed health laboratory manager: Monica Mezzalama

Maize

Wheat

Website

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 2013 2014 2015 2016 2017 2018
Maize Total number of accessions 27,820 28,067 28,316 28,339 28,446 28,494
Maize Total number of accessions that are currently available 14,848 17,788 17,551 18,887 17,470 18,055
Maize Number of seed accessions 27,820 28,067 28,316 28,339 28,333 28,494
Maize Number of vegetatively-propagated accessions 0 0 0 0 0 -
Maize Number of live plant accessions 0 0 0 0 113 161
Maize Number of seed accessions held in long-term storage and safety duplicated at two levels 8,334 8,334 8,334 24,575 21,465 21,465
Maize Number of vegetatively-propagated accessions in cryopreservation or safety duplicated as in vitro 0 0 0 0 0 -
Wheat Total number of accessions 147,706 149,764 152,835 154,744 154,476 155,325
Wheat Total number of accessions that are currently available 117,533 128,797 131,438 139,086 140,331 141,345
Wheat Number of seed accessions 147,706 149,764 152,835 154,744 154,476 155,325
Wheat Number of vegetatively-propagated accessions 0 0 0 0 0 -
Wheat Number of live plant accessions 0 0 0 0 0
Wheat Number of seed accessions held in long-term storage and safety duplicated at two levels 74,596 91,103 91,103 91,103 125,011 125,011
Wheat Number of vegetatively-propagated accessions in cryopreservation or safety duplicated as in vitro 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
Maize Number accessions received 0 712 1 19 0 0 389
Maize Number accessions regenerated 191 279 210 78 187 265 82
Maize Number accessions multiplied 1,591 1,056 1,292 694 530 254 316
Maize Number accessions health tested 1,982 2,538 962 2,499 1,645 1,354 2,681
Maize Number accessions cleaned 4 114 48 144 1,439 128 -
Maize Number accessions viability tested 734 1,290 1,037 1,440 881 1,299 2,014
Wheat Number accessions received 2,142 5,526 2,058 3,071 1,909 3,317 1,163
Wheat Number accessions regenerated 6,852 4,927 10,947 5,467 5,109 1,289 3,720
Wheat Number accessions multiplied 8,000 7,420 2,389 1,073 2,539 7,380 1,869
Wheat Number accessions health tested 18,688 16,179 11,873 7,096 16,116 1,607 15,178
Wheat Number accessions cleaned 233 3,706 1,116 750 0 0 -
Wheat Number accessions viability tested 6,562 11,790 13,527 9,667 8,459 11,776 6,600

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 2013 2014 2015 2016 2017 2018
wheat Number of samples distributed within the CGIAR 36,454 4,273 3,466 10,505 7,381 4,509
wheat Number of samples distributed outside the CGIAR 12,109 2,533 4,364 3,727 4,803 5,109
wheat Total number of samples distributed 48,563 6,806 7,830 14,232 12,184 9,618
wheat Number of accessions distributed within the CGIAR 30,156 3,717 3,386 10,004 6,846 4,208
wheat Number of accessions distributed outside the CGIAR 10,003 1,970 3,709 3,244 4,803 4,722
wheat Total number of accessions distributed 40,159 5,687 7,095 13,248 11,649 4,722
maize Number of samples distributed within the CGIAR 2,695 7,341 2,160 1,570 1,485 1,482
maize Number of samples distributed outside the CGIAR 2,587 5,005 3,006 5,769 4,902 8,899
maize Total number of samples distributed 5,282 12,346 5,166 7,339 6,387 10,381
maize Number of accessions distributed within the CGIAR 1,391 5,267 2,046 1,265 1,269 1,065
maize Number of accessions distributed outside the CGIAR 870 1,540 1,628 3,713 4,902 8,899
maize Total number of accessions distributed 2,261 6,807 3,674 4,978 6,171 9,964
all crops Number of samples distributed within the CGIAR 39,149 11,614 5,626 12,075 8,866
all crops Number of samples distributed outside the CGIAR 14,696 7,538 7,370 9,496 9,705
all crops Total number of samples distributed 53,845 19,152 12,996 21,571 18,571
all crops Number of accessions distributed within the CGIAR 31,547 8,984 5,432 11,269 8,115
all crops Number of accessions distributed outside the CGIAR 10,873 3,510 5,337 6,957 9,705
all crops Total number of accessions distributed 42,420 12,494 10,769 18,226 17,820

Publications by CIMMYT 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
Crespo-Herrera, L.A., Crossa, J., Huerta-Espino, J., Vargas, M., Mondal, S., Velu, G., Payne, T.S., Braun, H.J., Singh, R.P. Genetic gains for grain yield in CIMMYT’s semi-arid wheat yield trials grown in suboptimal environments. Crop Science READ
Sukhwinder-Singh Vikram, P., Sehgal, D., Burgueño, J., Sharma, A., Singh, S.K., Sansaloni, C.P., Joynson, R., Brabbs, T., Ortiz, C., Solís Moya, E., Velu, G., Gupta, N., Sidhu, H.S., Ashwani K. Basandrai, Basandrai, D., Ledesma-Ramires, L., Suaste-Franco, M.P., Fuentes Dávila, G., Ireta Moreno, J., Sonder, Kai, Vaibhav K. Singh, Singh, S., Sajid Shokat, Mian A.R. Arif, Khalil A. Laghari, Puja Srivastava, Bhavani, S., Satish Kumar, Dharam Pal, Jaiswal, J.P., Kumar, U., Harinder K. Chaudhary, Crossa, J., Payne, T.S., Imtiaz, M., Sohu, V.S., Gyanendra Pratap Singh, Bains, N., Hall, A.J.W., Pixley, K.V.. Harnessing genetic potential of wheat germplasm banks through impact-oriented-prebreeding for future food and nutritional security.  Scientific Reports READ
Morgounov, A.I.,Abugalieva, A.I.,Akan, K.,Akın, B.,Baenziger, S.,Bhatta, M.R.,Dababat, A.A.,Demir, L.,Dutbayev, Y.,Moustapha El Bouhssini,Erginbas-Orakci, G., Kishii, M.,Keser, M., Koc, E., Kurespek, A., Mujeeb-Kazi, A., Yorgancılar, A., Ozdemir, F., Ozturk, I., Payne, T.S., Qadimaliyeva, G., Shamanin, V., Subasi, K., Suleymanova, G., Yakisir, E., Zelenskiy, Y. High-yielding winter synthetic hexaploid wheats resistant to multiple diseases and pest. Plant Genetic Resources READ
Kumar, J., Saripalli, G., Gahlaut, V. et al.  Genetics of Fe, Zn, β-carotene, GPC and yield traits in bread wheat (Triticum aestivum L.) using multi-locus and multi-traits GWAS. Euphytica READ
Humberto Reyes-Valdes, M., Burgueno, J., Singh, S., Martinez, O., Paola Sansaloni, C. An informational view of accession rarity and allele specificity in germplasm banks for management and conservation. PLoS ONE READ
Gordon, E., Kaviani, M., Kagale, S., Payne, T., Navabi, A. Genetic diversity and population structure of synthetic hexaploid-derived wheat (Triticum aestivum L.) accessions. Genet Resour Crop Evol (2018).  READ
Contreras-Toledo, A. R., M. A. Cortés-Cruz, D. Costich, M. de Lourdes Rico-Arce, J. M. Brehm, and N. Maxted. A crop wild relative inventory for Mexico. Crop Science READ

Publications by CIMMYT 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
Contreras-Toledo, A. R., M. A. Cortés-Cruz, D. Costich, M. de Lourdes Rico-Arce, J. M. Brehm, and N. Maxted. A crop wild relative inventory for Mexico. Crop Science READ
Reynolds, M.P.,Pask, A., Hoppitt, W.J.E., Sonder, K., Sukumaran, S., Molero, G., Saint Pierre, C.,Payne, T.S., Singh, R.P., Braun, H.J., Gonzalez, F.G., Terrile, I.I., Barma, N.C.D, Abdul Hakim, M., He Zhonghu, Zheru Fan, Novoselovic, D., Maghraby, M., Gad, K.I.M., Galal, E.G., Hagras, A., Mohamed M. Mohamed, Morad, A.F.A., Kumar, U., Gyanendra Pratap Singh, Naik, R., Kalappanavar, I.K., Biradar, S., Prasad, S.V.S., Chatrath, R., Sharma, I., Panchabhai, K., Sohu, V.S., Gurvinder Singh Mavi, Vinod Kumar Mishra, Balasubramaniam, A., Jalal Kamali, M.R., Khodarahmi, M., Dastfal, M., Tabib Ghaffary, S.M., Jafarby, J., Nikzad, A.R., Moghaddam, H.A., Hassan Ghojogh, Mehraban, A., Solís Moya, E., Camacho Casas, M.A., Figueroa López, P., Ireta Moreno, J., Alvarado Padilla, J.I., Borbón Gracia, A., Torres, A., Quiche, YN., Upadhyay, S.R., Pandey, D., Imtiaz, M., Rehman, M.U., Hussain, M., Hussain, M., Ud-din, R., Qamar, M., Muhammad Kundi, Mujahid, M.Y., Ahmad, G., Khan, A.J., Mehboob Ali Sial, Mustatea, P., Well, E. von, Ncala, M., Groot, S. de, H. Strategic crossing of biomass and harvest index—source and sink—achieves genetic gains in wheat. Euphytica READ
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