Table 1 Locations of the Brassica A- and C-genome centromeres
ChromosomeStart (Mbp)End (Mbp)Size of centromere-containing region (Mbp)*Chromosome length (Mbp)**
A0113.114.11.023.1
A0213.914.20.324.7
A0328.029.71.729.7
A045.86.30.519.1
A0510.910.90.0723.0
A0611.111.10.0224.3
A073.35.21.924.0
A083.95.21.418.9
A0915.615.90.333.7
A102.95.32.417.3
C117.924.26.238.3
C231.832.20.346.1
C340.641.91.360.6
C417.119.42.348.9
C517.628.310.742.6
C68.08.40.537.2
C75.47.21.844.5
C85.86.40.638.3
C923.123.40.348.4
  • * Represents the conservative outer boundaries within which the active centromeric region must fall. SNPs with the maximum heterozygosity for each chromosome were assumed to be within the centromere region. The first SNP marker to show decreased heterozygosity in the direction of each telomere was taken as a flanking marker for the centromere boundary.

  • ** As covered by polymorphic SNP markers in the assembled B. napus Darmor v4.1 reference genome sequence (Chalhoub et al. 2014).