TABLE 3

Comparison between published homologous regions and collinear regions

Reference speciesReference Brassica positionReference A.t. (ch.)Reference A.t. (Mbp)aCitationB.o. LGA.t. position (Mbp)Collinear
B. oleracea C7127.4Quiros et al. (2001)O3b30No
B. oleracea C4412.3Quiros et al. (2001)O9b12.6Yese
B. oleracea BAC contig47.3O'Neill and Bancroft (2000)O1c7.3Yes
B. oleracea BAC contig47.3O'Neill and Bancroft (2000)O7c7.3Yes
B. oleracea BAC contig47.3O'Neill and Bancroft (2000)O3c7.3Yese
B. oleracea BAC contig520.0O'Neill and Bancroft (2000)O7c19.8Yes
B. oleracea BAC contig520.0O'Neill and Bancroft (2000)O2c18.1Yes
B. oleracea BAC contig520.0O'Neill and Bancroft (2000)O9c23.9Yes
B. oleracea C1319.6Sadowski et al. (1996)O7c19.8Yes
B. oleracea C6319.6Sadowski et al. (1996)O7c18.5Yes
B. nigra G557.0Lagercrantz (1998)O2d9.8Yes
B. nigra G857.0Lagercrantz (1998)O3d5.7Yes
B. nigra G257.0Lagercrantz (1998)O9d6.6Yes
B. nigra G8214.0Lagercrantz (1998)O3d15.6Yes
B. nigra G1214.0Lagercrantz (1998)O4d13.2Yes
B. nigra G6214.0Lagercrantz (1998)O4d13.8Yes
B. nigra G731.6Lagercrantz (1998)O1d1.3No
B. nigra G731.6Lagercrantz (1998)O3d2.0Yes
B. nigra G138.1Lagercrantz (1998)O5d6.4Yes
B. napus N1, N1148.0Cavell et al. (1998)O1d7.3Yes
B. napus N3, N1748.0Cavell et al. (1998)O7d7.3Yes
B. napus N8, N1848.0Cavell et al. (1998)O3c7.3Yese

A.t., A. thaliana; B.o., B. oleracea.

  • a The position of a previously reported region within A. thaliana that was similar to Brassica was estimated one of two ways. An A. thaliana genetic marker(s) was identified within the region of Brassica-Arabidopsis homology, and the BAC location of the marker was acquired using Mapviewer (www.arabidopsis.org). Or, Brassica markers within the homologous region were sequenced and the homologous A. thaliana physical position was identified using blastn.

  • b Homology between the cited linkage group and our linkage group was determined using the relationships inferred by Hu et al. (1998).

  • c Our B. oleracea linkage group and a B. oleracea BAC were considered homologous if both had similarity to the same position within the A. thaliana genome.

  • d Homeology was determined using the relationships inferred by Lagercrantz and Lydiate (1996) and/or using markers shared in both studies.

  • e The region was detected by the collinearity algorithm as collinear, but it was not significant at P < 0.05.