Xanthomonas campestris pv. campestris resistant brassica plant and preparation thereof

A method for providing a Xanthomonas campestris pv. campestris resistant Brassica acceptor plant, the method comprising:

• providing a first Brassica oleracea donor plant comprising a Quantitative Trait Locus 1 (QTL1) and a Quantitative Trait Locus 2 (QTL2) in its genome, wherein said Brassica oleracea donor plant is a Brassica plant with deposit number NCIMB 41553;
• and
• introgressing of, or genomically combining, Quantitative Trait Locus 1 (QTL1) and Quantitative Trait Locus 2 (QTL2) from the donor plant in a Brassica acceptor plant;
• wherein Quantitative Trait Locus 1 (QTL1) comprises one or more RAMP markers chosen from the group consisting of a fragment of 158 to 162 bp with primer combination SEQ ID No:
• 1 and primer 6;
• a fragment of 283 to 287 bp with primer combination SEQ ID No:
• 2 and primer 6;
• a fragment of 370 to 374 bp with primer combination SEQ ID No:
• 3 and primer 6;
• and a fragment of 41 to 45 bp with primer combination SEQ ID No:
• 4 and primer 6;
• and
• wherein Quantitative Trait Locus 2 (QTL2) comprises one or more RAMP markers chosen from the group consisting of a fragment of 88 to 92 bp with primer combination SEQ ID No:
• 5 and primer 6;
• a fragment of 125 to 129 bp with primer combination SEQ ID No:
• 6 and primer 6;
• a fragment of 334 to 338 bp with primer combination SEQ ID No:
• 7 and primer 6;
• and a fragment of 47 to 51 bp with primer combination SEQ ID No:
• 8 and primer 6;
• and
• wherein the Brassica acceptor plant is, regarding its genome, not identical with the Brassica oleracea donor plant.