Monsanto Invest B.v.

Monsanto Invest N.v.

Monsanto Holland B.v.

Adriaan Willem Van Heusden

Willem Hendrik Lindhout

Hendrikus Johannes Finkers

Remco Van Berloo

Johannes Arnoldus Laurentius Van Kan

Arjen Ten Have

Paulus Cornelis Maris

Benoit Gorguet

The present invention relates toplants carrying one or more of the pat-6, pat-7, pat-8 and pat-9 parthenocarpy genes. Preferred plants comprise a pair of pat-6 and pat-7 genes or a pair of pat-8 and pat-9 genes, whereby preferably the plant is homozygous for at least one of the two genes in the pair, more preferably the plant is homozygous for both genes in the pair. Such plants are capable of producing seedless tomatoes. The invention further relates to methods for producing plants carrying one or more of the pat-6, pat-7, pat-8 and pat-9 parthenocarpy genes using marker-assisted breeding.

Parthenocarpy genes in tomato

The present invention relates to a method for detecting a quantitative trait locus (QTL) associated with resistance toin tomato, including the steps of crossing a-resistant donor tomato plant with a non-resistant, or-susceptible, recipient tomato plant, contacting one or more offspring plants with an infective amount of, quantitatively determining the disease incidence and/or the rate of lesion growth in the one or more offspring plants, establishing a genetic linkage map that links the observed disease incidence and/or rate of lesion growth to the presence of chromosomal markers of the donor tomato plant in the one or more offspring plants, and assigning to a QTL the contiguous markers on the map that are linked to a reduced disease incidence and/or a reduced lesion growth rate.

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The present invention relates to a method for detecting a quantitative trait locus (QTL) associated with resistance toin tomato, comprising the steps of crossing a-resistant donor tomato plant with a non-resistant, or-susceptible, recipient tomato plant, contacting one or more offspring plants with an infective amount of, quantitatively determining the disease incidence and/or the rate of lesion growth in said one or more offspring plants, establishing a genetic linkage map that links the observed disease incidence and/or rate of lesion growth to the presence of chromosomal markers of said donor tomato plant in said one or more offspring plants, and assigning to a QTL the contiguous markers on said map that are linked to a reduced disease incidence and/or a reduced lesion growth rate.

Growing community of inventors

Wageningen, Netherlands

Adriaan Willem Van Heusden