POWDERY MILDEW RESISTANCE PROVIDING GENES IN CUCUMIS SATIVUS

The present invention relates to an impaired powdery mildew resistance conferring gene， the amino acid sequence encoded by said resistance conferring gene is shown in SEQ ID No. 2; wherein said impairment is one or more mutations in said gene resulting in the absence of a protein expression product; or said impairment is one or more mutations in said gene resulting in a non-functional protein expression product; and wherein said impairment provides powdery mildew resistance. The present invention relates to powdery mildew resistance providing genes of the Cucumis family， and especially Cucumis sativus， wherein said resistance is provided by impairment of the present genes. Further， the present invention relates plants comprising the present impaired resistance conferring genes and seeds， embryos or other propagation material thereof. Especially， the present invention relates to powdery mildew resistance conferring genes， wherein the amino acid sequence encoded by said resistance conferring gene is selected from the group consisting of SEQ ID No. 2， SEQ ID No. 4， SEQ ID No. 6， SEQ ID No. 8， SEQ ID No. 10， SEQ ID No. 12， SEQ ID No. 14， SEQ ID No. 16， SEQ ID No. 18， SEQ ID No. 20 and SEQ ID No. 22， and amino acid sequences with more than 70% identity， preferably more than 80% identity， more preferably more than 90% identity， and most preferably more than 95% identity.