Parthenocarpic Watermelon Plants Without Pollinator Interplanting
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Solution Overview
Problem
Current methods for producing seedless watermelons require interplanting with pollinator plants, which reduces yield and increases production costs due to the need for separate harvesting and processing of seeded and seedless fruits, and are susceptible to climate-induced asynchrony in flowering and fertility times.
Innovation Solution
Introduction of a mutant allele of the WOP1 gene (wop1) in watermelon plants, which confers facultative parthenocarpy, allowing seedless fruit production without pollination and eliminating the need for pollinator plants, thereby increasing yield and simplifying harvesting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If triploid watermelon plants are used to produce seedless fruits, then seedless fruit quality is improved, but pollination is required which reduces productivity due to the need for pollenizer plants
Solution Approach 1:
The invention changes the genetic parameter of the watermelon plant by introducing a mutant allele of a recessive gene (WOPl) that confers facultative parthenocarpy. This genetic parameter change allows triploid plants to produce seedless fruits without pollination, eliminating the need for pollenizer plants and increasing yield per area while maintaining seedless fruit quality
2Reliability
If pollenizer plants are planted alongside triploid hybrid plants to enable pollination, then fruit set is achieved, but device complexity increases due to the need for multiple plant types and harvesting separation
Solution Approach 1:
The invention extracts and eliminates the pollenizer plant component from the production system. By introducing the mutant WOPl allele into triploid hybrid plants, the system achieves fruit set through facultative parthenocarpy without requiring separate pollenizer plants, thereby simplifying the production system while maintaining reliable fruit set
3Ease of manufacture
If diploid watermelon plants are used for self-pollination to produce seeded fruits, then propagation is simplified, but product purity deteriorates due to mixing of seeded and seedless fruits
Solution Approach 1:
The invention inverts the traditional approach by making the triploid hybrid plants (not the diploid pollenizers) capable of self-pollination and seed production through the mutant WOPl allele. This allows the seedless fruit-producing plants to also serve as their own pollinators when needed, eliminating the need for separate diploid pollenizer plants and preventing mixing of seeded and seedless fruits, thus maintaining product purity while preserving propagation capabilities
Data Source
Figure 1A~1C
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AI summary
The present invention is directed to seedless fruit producing watermelon plants. The present invention also comprises methods for production of said plants and methods for producing seedless watermelon fruits.