Table 3.
Average distance of linkage disequilibium (LD) decay ( r 2 = 0.1) on A- and C-subgenome chromosomes, calculated using 24,994 unique, genome-wide SNP markers with minor allele frequency (MAF) ≥0.5, in a collection of 203 Chinese semi-winter B. napus accessions
| Subgenome | Chromosome | LD decay (Mb) | No. of SNPs |
|---|---|---|---|
| A-subgenome | A01 | 0.11-0.12 | 1117 |
| A02 | 0.08-0.09 | 891 | |
| A03 | 0.14-0.15 | 1646 | |
| A04 | 0.20-0.25 | 1139 | |
| A05 | 0.18-0.19 | 1249 | |
| A06 | 0.13-0.14 | 1153 | |
| A07 | 0.13-0.14 | 1412 | |
| A08 | 1.50-2.00 | 820 | |
| A09 | 1.00-1.50 | 1166 | |
| A10 | 0.45-0.50 | 1171 | |
| Mean | 0.25-0.30 | 1176 | |
| C-subgenome | C01 | 7.00-7.50 | 2041 |
| C02 | 5.00-5.50 | 1891 | |
| C03 | 0.60-0.65 | 2094 | |
| C04 | 3.50-4.00 | 2473 | |
| C05 | 0.40-0.45 | 718 | |
| C06 | 0.80-0.85 | 905 | |
| C07 | 7.00-7.50 | 1285 | |
| C08 | 7.00-7.50 | 1156 | |
| C09 | 1.00-1.50 | 667 | |
| Mean | 2.00-2.50 | 1581 | |
| A + C | Mean | 0.85-0.90 | 1378 |