Percentages of genome-specific absent bands and novel bands for AFLP, mAFLP and cDNA-AFLP in hybrids and allotetraploids.

A−, B−, C−: specific fragments lost belonging to Brassica A, B, C genomes, respectively; a,b,c,d,: Groups in each column significantly different by χ2 -test, P<0.05; The * indicates that the percentages of the change from different genomes in each hybrid in each row are insignificantly different (the chi-square test, α = 0.05), respectively. The ** revealed by cDNA-AFLP in A.C.B were insignificantly different (the chi-square test, α = 0.05).