Brassica plants resistant to downy mildew

The present invention relates to a plant of the genus Brassica resistant to Peronospora brassicae, said plant comprising a QTL on chromosome 8 and optionally a QTL on chromosome 4 and/or a QTL on chromosome 1. The presence of a QTL on the chromosome 8 can be identified by using at least one selected from the group consisting of markers of SEQ ID No.1 to 7; the presence of a QTL on the chromosome 4 can be identified by using at least one selected from the group consisting of markers of SEQ ID No. 8-16; and the presence of a QTL on the chromosome 1 can be identified by using at least one selected from the group consisting of markers of SEQ ID No. 17 to 22. Wherein the QTL is as comprised in the genome of a plant of the genus Brassica that was preserved at its representative seed in the NCIMB with accession number NCIMB 43346. 本发明涉及对油菜霜霉具有抗性的芸苔属植物，所述植物包含8号染色体上的QTL以及任选地4号染色体上的QTL和/或1号染色体上的QTL。所述8号染色体上的QTL的存在可通过使用选自SEQ ID No.1至7的标记中的至少一种来鉴定；所述4号染色体上的QTL的存在可通过使用选自SEQ ID No.8-16的标记中的至少一种来鉴定；以及所述1号染色体上的QTL的存在可通过使用选自S