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Table 1 Linkage disequilibrium (LD) decay estimated for different soybean chromosomes

From: Genetic architecture of cyst nematode resistance revealed by genome-wide association study in soybean

Chromosome No. Chr. size (Mb) No. of markers* LD decay (Kb) Required marker**
1 55.92 1,426 250 224
2 51.66 2,130 300 172
3 47.78 1,428 150 319
4 49.24 1,677 200 246
5 41.94 1,513 300 140
6 50.72 1,595 175 290
7 44.68 1,801 500 89
8 47.00 2,167 250 188
9 46.84 1,649 250 187
10 50.97 1,846 200 255
11 39.17 1,433 200 196
12 40.11 1,271 250 160
13 44.41 2,240 200 222
14 49.71 1,677 300 166
15 50.94 2,130 400 127
16 37.40 1,496 125 299
17 41.91 1,734 225 186
18 62.31 2,894 500 125
19 50.59 1,855 600 84
20 46.77 1,308 150 312
Total 950.07 35,270 250 3,800
  1. Chr. – Chromosome, LD – Linkage disequilibrium, *– number of markers used in present study, **– Average number of required makers was estimated based on the chromosome size and LD decay at r 2 = 0.2