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. 2012 Sep 27;7(9):e45751. doi: 10.1371/journal.pone.0045751

Figure 6. Microsynteny analysis of homologous regions related to BnFLC.A3b, BnFRI.A3, and BnCBF.A3.

Figure 6

Collinear gene models are connected by dotted lines. (A) The colored bar in the center represents the portion of chromosome 3 of B. napus that contains the three genes. The blue arrow indicates the opposite orientation of the ‘W’ block. The left-hand box represents a region of the ‘J’ block (BnA3-J) in which BnFLC.A3b and BnCBF.A3 are located, and alignment of conserved gene models of BnC3-J of B. napus, the triplicated regions (BrA3-J, BrA4-J and BrA5-J) of B. rapa, and the homologous regions in A. thaliana and A. lyrata. Red lines connect the collinear gene models in the ‘J’ block next to FLC and CBF homologues. The right-hand box represents a region of the ‘W’ block in which BnFRI.A3 is located, and alignment of conserved gene models in the triplicated regions (BrA2-W, BrA3-W and BrA4-W) of B. rapa, and the homologous regions in A. thaliana and A. lyrata. Red lines connect the FRI homologues and the FRI homologous fragments. (B) Detailed structure of a region in BrA3-J (indicated by a green box in the left-hand box of (a) from the BAC clone KBrH038M21; [35]). Repeat sequences were identified between the homologues of At2g30000 and At2g30020. GF-1 and GF-2 represent two gene fragments homologous to the ‘R’ block genes, At5G10200 and At5G10150, respectively.