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Table 1 Distribution of paralogous gene pairs for 25 plant species targeted by this study

From: Both mechanism and age of duplications contribute to biased gene retention patterns in plants

Specie Chr Initial PCG Duplicates Number of duplicates by duplication type Number of duplicates by Ks range
WGD Tandem Undefined 0 < Ks ≤ 0.5 0.5 < Ks ≤ 1 1 < Ks ≤ 1.5 1.5 < Ks ≤ 2 Ks > 2
Arabidopsis lyrata 16 32670 6378 3442 1816 1120 2251 2216 966 945 228
Arabidopsis thaliana 10 33602 6194 2740 1232 2222 1657 2407 1183 947 222
Amborella trichopoda 26 26460 3322 15 998 2309 1861 427 402 632 137
Brachypodium distachyon 10 26678 3573 1025 1768 780 981 1024 835 733 175
Carica papaya 18 28072 1915 24 455 1436 603 210 402 700 126
Citrullus lanatus 22 23438 2806 385 1015 1406 691 435 751 930 227
Eucalyptus grandis 22 36449 11120 390 6424 4306 8106 925 1029 1060 240
Fragaria vesca 14 34809 3974 1021 1606 1347 1500 979 684 811 184
Glycine max 40 46509 15242 9721 2087 3434 11697 1961 790 794 185
Helianthus annuus 34 44144 9925 57 995 8873 4651 2805 1551 918 108
Lotus japonicus 12 26818 2682 184 627 1871 1159 774 415 334 51
Malus domestica 34 63515 15551 2761 1308 11482 13084 1258 683 526 107
Manihot esculenta 36 30800 7134 2530 703 3901 4915 837 716 666 110
Medicago truncatula 16 57587 5098 1083 2419 1596 2902 1262 543 391 115
Oryza sativa ssp. indica 24 48788 8349 1957 2869 3523 3361 2169 1665 1154 317
Oryza sativa ssp. japonica 24 59430 5559 1482 2173 1904 1928 1584 1233 814 183
Physcomitrella patens 54 36137 3769 306 202 3261 637 1848 883 401 99
Populus trichocarpa 36 41521 9721 5609 1988 2124 7572 738 704 707 147
Ricinus communis 20 31221 2558 155 614 1789 628 435 683 812 176
Sorghum bicolor 20 34686 4267 1048 1698 1521 1468 1061 993 745 186
Solanum lycopersicum 24 34432 7100 1234 2561 3305 3184 2287 872 757 209
Selaginella moellendorffii 16–27 22285 1885 351 608 926 1457 129 102 197 66
Theobroma cacao 20 46269 3488 722 1553 1213 1199 601 822 866 201
Vitis vinifera 38 26644 4536 528 1935 2073 1918 852 1042 724 128
Zea mays 20 39597 6336 590 1396 4350 3792 1095 813 636 153
  1. Chr Number of Chromosomes, Initial PCG Initial number of Protein-coding gene sequences