Powdery Mildew Resistance Providing Genes in Cucumis Sativus

An isolated cucumber plant that is resistant to powdery mildew comprising in its genome an impaired powdery-mildew susceptibility gene, wherein the presence of the impaired powdery-mildew susceptibility gene is determinable by a decrease, absence, or loss of function of at least one of SEQ ID NO:

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• 22.

A cDNA transcribed from a nucleotide sequence selected from SEQ ID NO:

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• 21.

A method for obtaining a cucumber plant that is resistant to powdery mildew, comprising introducing an impairment to at least one nucleotide sequence selected from SEQ ID NO:

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• 21 in a cucumber plant that is susceptible to powdery mildew.