Seedless fruit producing plants

A method for production of a seedless watermelon fruit comprising growing a watermelon plant and allowing pollination of said plant and harvesting the seedless fruit, wherein the watermelon plant comprises a mutant allele of a gene encoding a cyclin SDS like protein in homozygous form, wherein the mutant allele comprises a mutation in the promoter sequence resulting in no gene expression or reduced gene expression compared to a corresponding wild type allele or wherein the mutant allele encodes a non-functional protein or a reduced-function protein comprising a deletion, truncation, insertion or replacement of one or more amino acids, compared to the protein encoded by the wild type allele, wherein the cyclin SDS like protein of the wild type allele is encoded by one of the following nucleic acid molecules:

• a) a nucleic acid molecule, which encodes a protein with the amino acid sequence given under SEQ ID NO:
• 2;
• b) a nucleic acid molecule, which encodes a protein, the sequence of which has an identity of at least 80% with the amino acid sequence given under SEQ ID NO:
• 2;
• c) a nucleic acid molecule, which comprises the nucleotide sequence shown under SEQ ID NO:
• 1 or the complimentary sequence thereof;
• or
• d) a nucleic acid molecule, which has an identity of at least 90% with one of the nucleic acid sequences described under c).