North America: 118 , 63 Mexico, Central and South America: 14301 , 68 Asia: 13825 , 5214 Africa: 841 , 3032 Europe Yemen: 1 , 40 Syria: 1884 , 91 Saudi Arabia: 12 , 7 Palestine: 0 , 7 Oman: 6 , 47 Lebanon: 7 , 30 Jordan: 6 , 37 Israel: 187 , 0 Near East 1934 , 259 Iraq: 47 , 79 Afghanistan: 846 , 904 Cluster I: 8876 , 2260 Southern Russia: 0 , 85 Georgia: 117 , 128 Azerbaijan: 11 , 189 Armenia: 29 , 151 Caucasus: 157 , 553 Western Asia: 10967 , 3072 Pakistan: 374 , 808 Others (Bangladesh, Bhutan, Maldives, Sri Lanka): 0 , 0 Nepal: 262 , 31 India: 317 , 165 South Asia 953 , 1004 Mongolia: 24 , 15 Korea (South and North): 0 , 0 Japan: 64 , 147 China: 1700 , 61 Eastern Asia: 1788 , 223 Uzbekistan: 12 , 152 Turkmenistan: 2 , 48 Tajikistan: 87 , 570 Kyrgyzstan: 4 , 18 Kazakhstan: 7 , 127 Central Asia: 112 , 915 Tunisia 30 , 374 Morocco: 140 , 232 Libya: 0 , 16 Egypt: 42 , 78 Algeria: 31 , 425 North Africa: 243 , 1125 Ethiopia: 532 , 1891 Ukraine: 8 , 37 Russia (except Southern Russia): 110 , 332 Romania: 2 , 40 Hungary: 20 , 4 Croatia 1 , 4 Bulgaria: 9 , 21 Bosnia and Herzegovina: 1 , 5 South-Eastern Europe and Russia: 151, 443 Others Europe: 78 , 121 Switzerland: 26 , 48 Sweden: 5 , 8 Poland: 70 , 12 Norway: 1 , 1 Holland: 9 , 5 Germany: 52 , 24 GBR-IRL: 8 , 2 France: 16 , 13 Denmark: 9 , 0 Belgium: 0 , 1 Austria: 8 , 60 North West Europe: 204 , 174 Spain: 86 , 138 Portugal: 162, 54 Macedonia: 0 , 3 Italy: 25 , 36 Greece: 16 , 170 Cyprus: 2 , 1 Albania: 13 , , 0 Mediterranean Europe: 304 , 402 Iran: 7983, 1277 Other African countries Turkey: 3223, 1182 Bread wheat landrace diversity in the CGIAR collections: Complementarity of CIMMYT and ICARDA Accessions conserved at CIMMYT and ICARDA were mapped onto the end-groups in the tree and against crop suitability area on the map (FAO/IIASA 2011). 97% of the 62 end-groups in the Bread Wheat Diversity Tree are represented in CGIAR collections. 84% are well represented or have a fair representation. 50% of the groups that have no or poor representation at CIMMYT have at least a fair representation in ICARDA collections. References FAO/IIASA. 2011. Global agro-ecological zones (GAEZ v3.0). FAO Rome, Italy and IIASA, Laxenburg, Austria. Van Treuren, R., Engels, J. M. M., Hoekstra, R., and Van Hintum, T. J. 2009. Optimization of the composition of crop collections for ex situ conservation. Plant Genetic Resources 7(2), 185–193. For more information, visit http://bit.ly/wheat-tree or scan the below QR code Number of accessions in the end-group Bread wheat landraces CIMMYT: 33,150 accessions; ICARDA: 10,726 accessions The thickness of the branches is proportional to the number of accessions held in CGIAR collections 62 end-groups 1 2 3 CIMMYT CGIAR assuming no duplication between CIMMYT and ICARDA ICARDA CGIAR assuming duplication between CIMMYT and ICARDA Well represented ( > 49 accessions), e.g. Spain Fair representation (10-49 accessions), e.g. Ukraine Poor representation (1-9 accessions), e.g. Cyprus No representation, e.g. Korea No representation at ICARDA Poor representation at ICARDA Fair representation at ICARDA Well represented at ICARDA end-groups with no or poor representation at CIMMYT 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Iran: large CI M M YT collectio n, sm aller IC A R D A c o llectio n China: large CIMM YT collection North Africa: large ICARD A collectio n, s m aller C I M M Y T c o ll e c ti o n R u s sia: IC A R D A g o o d g e o gr ap hic al co v era g e, s m aller C IM M Y T collectio n Collecting site of accession conserved at ICARDA Collecting site of accession conserved at CIMMYT Suitable area for bread wheat Area not suitable for bread wheat The Bread Wheat Diversity Tree is a representation of the structure of the bread wheat genepool obtained by dividing it into hierarchical clusters (Van Treuren et al. 2009).