Sweet Grape Tomato Lines With High Sugar And Disease Resistance
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Solution Overview
Problem
Current tomato breeding techniques have limitations in developing new lines and varieties with improved traits such as high sugar content, disease resistance, and uniformity, which are essential for enhanced crop yield and fruit quality.
Innovation Solution
The development of tomato lines CHI 15-2113, CHD 15-2114, and hybrid variety BX 0154 3756, which exhibit improved traits like high sugar content, resistance to tomato mosaic virus, and disease resistance, achieved through selective breeding and genetic stabilization, allowing for the production of homogeneous seed populations and tissue cultures that retain these characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding techniques are used to develop new tomato lines, then genetic diversity is maintained, but genetic uniformity and predictability of performance are reduced
Solution Approach 1:
The breeding program segments the development process into distinct phases: creating homozygous inbred lines through repeated self-pollination, then crossing specific lines to produce uniform F1 hybrids. This segmentation allows genetic diversity to be captured in the inbred lines while producing uniform commercial hybrids with predictable performance.
Solution Approach 2:
The patent changes the genetic parameter from heterogeneous breeding populations to homozygous inbred lines, and then to uniform F1 hybrids. This parameter change enables both genetic diversity (through multiple inbred lines) and genetic uniformity (within each hybrid population), resolving the contradiction.
2Manufacturing precision
If multiple generations of selfing and selection are performed to develop inbred lines, then genetic uniformity within lines is improved, but time required for breeding is increased
Solution Approach 1:
The patent performs preliminary action by creating and maintaining a library of homozygous inbred lines before the actual hybridization program. Once these lines are established, they can be crossed repeatedly to produce uniform hybrids without requiring additional generations of selfing, thus reducing overall breeding time while maintaining genetic uniformity.
3Productivity
If hybrid cultivars are developed to improve yield and performance, then productivity is increased, but complexity of the breeding program and seed production is increased
Solution Approach 1:
The patent utilizes the natural self-pollinating characteristic of tomato plants to maintain homozygous inbred lines and produce uniform F1 hybrids. This self-service mechanism simplifies the breeding program by eliminating the need for complex cross-pollination management while still achieving high productivity through hybrid vigor.
4Manufacturing precision
If selection for high sugar content is performed, then fruit quality is improved, but genetic diversity for other traits may be reduced
Solution Approach 1:
The breeding program segments trait selection by creating specialized inbred lines with different strengths (e.g., high sugar content, disease resistance, yield). These segmented lines are then crossed to produce hybrids that combine multiple desirable traits, maintaining genetic diversity while achieving high fruit quality through specific trait combinations.
Data Source
AI summary
The invention provides seed and plants of tomato line CHI 15-2113, tomato line CHD 15-2114 and hybrid tomato variety BX 0154 3756. The invention thus relates to the plants, seeds and tissue cultures of tomato line CHI 15-2113, tomato line CHD 15-2114 and hybrid tomato variety BX 0154 3756, and to methods for producing a tomato plant produced by crossing a plant of tomato line CHI 15-2113, tomato line CHD 15-2114 or hybrid tomato variety BX 0154 3756 with itself or with another tomato plant, such as a plant of another line or variety. The invention further relates to seeds and plants produced by such crossing. The invention further relates to parts of a plant of tomato line CHI 15-2113, tomato line CHD 15-2114 or hybrid tomato variety BX 0154 3756, including the fruit and gametes of such plants.