Figure 3.

Small‐ to mid‐scale genomic rearrangements on chromosome A03 of B.napus. (a) Circos plot showing small‐ to mid‐scale insertion and deletion events in 12 B. napus accessions, using chromosome A03 as an example. Each track represents a single accession in the following order from outside to inside: Express 617, Quinta, Tapidor, R53 (all winter type), No2127, N99, Westar, PAK85912 (spring type), Gangan, Shengli, Zheyou7 and ZS11 (semi‐winter type). Deletions are represented by yellow blocks, whereas insertions are shown by red blocks. Darker blocks in (A) represent regions containing both deletions and insertions in different genotypes. Arrows I and II mark selected segmental SV events specific for a particular ecotype. (b) Expanded view of the chromosome segment depicted by arrow I in A. Arrow III represents a 50 kbp region containing segmental deletion and insertion events detected in all winter and spring ecotypes but not in the semi‐winter types. Arrow IV indicates a 40 kbp region containing segmental deletions detected only in the four semi‐winter types and three of spring types. Arrow V indicates a 40 kbp region containing segmental insertions detected only in the four semi‐winter types and one of the spring types. (c) Expanded view of the chromosome segment depicted by arrow II in A. Arrow VI indicates a 120 kbp region containing segmental insertions only in the four spring types.