Fig. 4 Phylogenetic tree of the three A genome contained species B. rapa, B. juncea and B. napus

Figure 4 Phylogenetic tree of the three A genome contained species B. rapa, B. juncea and B. napus (A) Evaluated with a set of markers (16,077) which was aligned to unique positions of A, B and C genomes (ABC-markers), respectively; the figure shown B. juncea being separated from other two species. (B), Evaluated with a subset of markers (3,296) which were uniquely aligned to A genome; the figure shown a close relationship between B. juncea and B. rapa, and together separated from B. napus. 26 accessions of the three Brassica species, i.e, B. rapa, B. juncea and B. napus, were used.