P. Hazra, A. K. Dutta
Parthenocarpy is the production of fruit without fertilization. Substantially seedless tomatoes resulting from genetic parthenocarpy would be beneficial in the food preparation and process products industries because the seeds would not need to be removed prior to processing. The investigations were carried out in Department of Vegetable crops, Bidhan Chandra Krishi Viswavidyalaya, West Bengal (2004-05 – 2007-08) to determine the inheritance pattern of parthenocarpy in ‘Oregon Pride’ tomato and to examine the linkage between parthenocarpy and two marker genes. Expression of parthenocarpy in ‘Oregon Pride’ was facultative and fruit with less than 20 seeds were classified as parthenocarpic in the short winter of Eastern India. Expression of parthenocarpy in the segregating population of all the 3 crosses indicated the involvement of the second gene designated as “ii”, an independent gene which influenced the pat-2 gene having major effect for the control of parthenocarpy. Inheritance of parthenocarpy, stem pigmentation (pigmented/non-pigmented stem), leaf character (cut/potato leaf) and their joint segregation could not detect genetic linkages between parthenocarpy (pat-2 pat-2 ii ii) and two marker genes: stem pigmentation (aw+/aw) and leaf character (c+/c).
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