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Table 3 Level of fractionation in the triplicated regions of the three Brassica genomes

From: Conserved microstructure of the Brassica B Genome of Brassica nigra in relation to homologous regions of Arabidopsis thaliana, B. rapa and B. oleracea

  Size (bp) Number of potential TEs Number of retained exons (%) Number of retained genic regions (%)1   Number of predicted genes (%)2 Number of ab initiogenes Gene density (gene/bp)
ContigA         
Arabidopsis 221029   388   67    
A Genome 311929 3 190 (48.97) 46 (68.66)   29 (43.28) 72 4332.35
B Genome 258940 5 207 (53.35) 44 (65.67)   35 (52.24) 71 3647.04
C Genome 586573 32 184 (47.42) 43 (64.18)   28 (41.79) 159 3689.14
     35 genes in all 3   
ContigB         
Arabidopsis 341067   496   89    
A Genome 365330 14 270 (54.44) 55 (61.80)   41 (46.07) 82 4455.24
B Genome 258875 1 288 (58.06) 62 (69.66)   46 (51.69) 64 4044.92
C Genome 828528 42 287 (57.86) 55 (61.80)   40 (44.94) 189 4383.75
     47 genes in all 3   
ContigC         
Arabidopsis 182585   243   42    
A Genome 154252 0 174 (71.60) 34 (80.95)   25 (59.52) 32 4820.38
B Genome 175460 2 163 (67.08) 36 (85.71)   31 (73.81) 38 4617.37
C Genome 398219 14 181 (74.49) 34 (80.95)   29 (69.05) 102 3904.11
     31 genes in all 3   
ContigD         
Arabidopsis 327453   456   88    
A Genome 278470 0 243 (53.29) 64 (72.73)   42 (47.73) 66 4219.24
B Genome 386079 4 336 (73.68) 73 (82.95)   48 (54.55) 115 3357.21
C Genome 362518 4 240 (52.63) 64 (72.73)   45 (51.14) 99 3661.80
     62 genes in all 3   
ContigE         
Arabidopsis 112818   222   34    
A Genome 132246 8 92 (41.44) 17 (50.00)   14 (41.18) 38 3480.16
B Genome 159548 7 85 (38.29) 15 (44.12)   14 (41.18) 42 3798.76
C Genome 234259 10 82 (36.94) 16 (47.06)   13 (38.24) 70 3346.56
     12 genes in all 3   
ContigF         
Arabidopsis 387646   503   96    
A Genome 510517 12 366 (72.76) 80 (83.33)   65 (67.71) 121 4219.15
B Genome 450974 8 371 (73.76) 84 (87.50)   70 (72.92) 113 3990.92
C Genome 543877 37 363 (72.17) 86 (89.58)   62 (64.58) 159 3420.61
     76 genes in all 3   
  1. 1. Indicates the presence of complete and partial genes as determined by significant homology to any region of the annotated genes in A. thaliana. 2. Indicates homology to complete A. thaliana genes based on the maintenance of intron/exon structure.