Tomato Hybrid SVTH5912 Breeding for Uniform Trait Stacking
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Solution Overview
Problem
Existing tomato breeding methods struggle to develop uniform varieties with desirable traits such as disease resistance, insect resistance, and modified carbohydrate metabolism, leading to unpredictable performance and non-uniform populations of hybrid plants.
Innovation Solution
Development of tomato hybrid SVTH5912 and its parent lines FIR-A820-8142 and FDR-A820-8126, incorporating specific genetic loci through backcrossing, genetic transformation, and genome editing to introduce traits like herbicide tolerance, disease resistance, and modified carbohydrate metabolism, ensuring a homogeneous seed population and uniform plant performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to combine desirable traits, then genetic diversity is increased, but uniformity of the hybrid population deteriorates
Solution Approach 1:
The breeding process is segmented into distinct phases: first developing uniform homozygous parent lines through self-pollination and selection, then crossing these standardized parents to produce uniform F1 hybrids. This segmentation allows genetic diversity to be captured in the parent lines while maintaining uniformity in the commercial hybrid population.
Solution Approach 2:
Homozygous parent lines are developed and standardized before the hybrid crossing stage. This preliminary action of creating uniform parental stocks ensures that when crosses are made, the resulting F1 hybrids exhibit consistent uniformity while still incorporating diverse desirable traits from different parental lines.
2Adaptability or versatility
If multiple desirable traits are combined in a single variety, then versatility is improved, but breeding complexity increases
Solution Approach 1:
Multiple desirable traits are merged into uniform homozygous parent lines through selective breeding and selection. These pre-combined trait packages are then crossed to produce F1 hybrids that inherit the combined traits. This merging approach allows multiple traits to be combined without proportionally increasing breeding complexity, as the trait combination work is done in advance during parent line development.
3Stability of the object's composition
If homozygous inbred plants are developed through self-pollination, then uniformity is improved, but genetic diversity is reduced
Solution Approach 1:
The solution moves from a single dimension (uniformity within a line) to multiple dimensions by creating uniform homozygous parent lines that are then crossed. Each parent line maintains uniformity through self-pollination, but the cross between different uniform parent lines introduces genetic diversity in a new dimension, producing F1 hybrids that are both uniform within themselves and genetically diverse across different trait combinations.
Data Source
AI summary
The invention provides seeds and plants of tomato hybrid SVTH5912, tomato line FIR-A820-8142, and tomato line FDR-A820-8126. The invention thus relates to the plants, seeds, plant parts, and tissue cultures of tomato hybrid SVTH5912, tomato line FIR-A820-8142, and tomato line FDR-A820-8126 and to methods for producing a tomato plant produced by crossing such plants with themselves or with another plant, such as a tomato plant of another genotype. The invention further relates to seeds and plants produced by such crossing. The invention further relates to plants, seeds, plant parts, and tissue cultures of tomato hybrid SVTH5912, tomato line FIR-A820-8142, and tomato line FDR-A820-8126 comprising introduced beneficial or desirable traits.