Seedless fruit producing plants

A plant cell comprising a mutant allele of a gene encoding a cyclin SDS like protein, wherein the mutant allele comprises a mutation in one or more regulatory sequences resulting in no gene expression compared to a corresponding wild type allele or wherein the mutant allele encodes a protein comprising a deletion, truncation, insertion or replacement of one or more amino acids, compared to the protein encoded by the wild type allele, resulting in a loss of function of the cyclin SDS like protein, 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 or SEQ ID NO:
• 6 or SEQ ID NO:
• 12 or SEQ ID NO:
• 19 or SEQ ID NO:
• 20;
• b) a nucleic acid molecule, which encodes a protein, the sequence of which has an identity of at least 90% with the amino acid sequence given under SEQ ID NO:
• 2 or SEQ ID NO:
• 6 or SEQ ID NO:
• 12 or SEQ ID NO:
• 19 or SEQ ID NO:
• 20;
• c) a nucleic acid molecule, which comprises the nucleotide sequence shown under SEQ ID NO:
• 1 or SEQ ID NO:
• 5 or the complimentary sequence thereof;
• d) a nucleic acid molecule, which has an identity of at least 90% with one of the nucleic acid sequences described under c);
• e) a nucleic acid molecule, which hybridizes with at least one strand of one of the nucleic acid molecules described under a), b), c), or d) under stringent conditions;
• or
• f) a nucleic acid molecule, the nucleotide sequence of which deviates from the sequence of one of the nucleic acid molecules identified under a) or b) due to the degeneration of the genetic code.

A watermelon plant or plant part or seed comprising a mutant allele of a gene encoding a cyclin SDS like protein, wherein the mutant allele comprises a mutation in one or more regulatory sequences resulting in no gene expression compared to a corresponding wild type allele or wherein the mutant allele encodes a protein comprising a deletion, truncation, insertion or replacement of one or more amino acids, compared to the protein encoded by the wild type allele, resulting in a loss of function of the cyclin SDS like protein, 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 that encodes a protein with the amino acid sequence of SEQ ID NO:
• 2;
• b) a nucleic acid molecule that encodes a protein comprising a sequence having an identity of at least 90% with the amino acid sequence of SEQ ID NO:
• 2;
• c) a nucleic acid molecule comprising the nucleotide sequence of SEQ ID NO:
• 1 or the complimentary sequence thereof;
• or
• d) a nucleic acid molecule comprising a nucleotide sequencing having an identity of at least 90% with the nucleotide sequence of SEQ ID NO:
• 1.