Pepper Hybrid Breeding for Uniform Multi-Trait Performance
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Solution Overview
Problem
Existing pepper breeding methods struggle to produce uniform hybrid plants with desirable traits such as herbicide tolerance, insect resistance, and disease resistance, while maintaining genetic uniformity and predictability of performance.
Innovation Solution
Development of pepper hybrid SVPB9503 and its parent lines SBR-E719-1015 and SBY-HJ17-3100, incorporating specific genetic loci through backcrossing or genetic engineering to introduce traits like herbicide tolerance, insect resistance, and disease resistance, ensuring genetic uniformity and high yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to combine desirable traits, then genetic diversity increases, but genetic uniformity and performance predictability deteriorate
Solution Approach 1:
The breeding process is segmented into distinct phases: developing homozygous inbred parent lines through self-pollination, then crossing these standardized parents to produce uniform hybrid F1 progeny. This segmentation ensures that genetic diversity is introduced only at the controlled crossing stage, while maintaining uniformity within each generation.
Solution Approach 2:
The patent changes the genetic parameter state by transitioning from heterozygous diverse breeding populations to homozygous uniform inbred lines, and then to uniformly heterozygous hybrid F1 generation. This parameter change from diversity to uniformity at different stages resolves the contradiction between trait combination and performance predictability.
2Stability of the object's composition
If inbred plants are developed through self-pollination and selection, then genetic uniformity improves, but breeding time and complexity increase
Solution Approach 1:
Homozygous inbred parent lines are developed beforehand through multiple generations of self-pollination and selection before the hybridization step. This preliminary action ensures genetic uniformity is established in advance, allowing the subsequent hybrid F1 generation to immediately exhibit uniform performance without requiring additional time for stabilization.
3Adaptability or versatility
If multiple traits are combined in breeding pools, then trait versatility increases, but breeding process complexity increases
Solution Approach 1:
The breeding process is divided into separate phases: first developing inbred lines with specific traits through self-pollination, then crossing selected lines to combine traits in the F1 generation. This segmentation simplifies each individual step while achieving complex multi-trait combinations in the final hybrid, reducing overall process complexity.
Data Source
AI summary
The invention provides seeds and plants of pepper hybrid SVPB9503, pepper line SBR-E719-1015, and pepper line SBY-HJ17-3100. The invention thus relates to the plants, seeds, plant parts, and tissue cultures of pepper hybrid SVPB9503, pepper line SBR-E719-1015, and pepper line SBY-HJ17-3100 and to methods for producing a pepper plant produced by crossing such plants with themselves or with another plant, such as a pepper 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 pepper hybrid SVPB9503, pepper line SBR-E719-1015, and pepper line SBY-HJ17-3100 comprising introduced beneficial or desirable traits.