Pea Line SV7688QF Breeding Segmentation
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Solution Overview
Problem
Current pea breeding methods face challenges in developing uniform, high-yielding varieties with desirable traits like disease resistance and nutritional value, as they often result in unpredictable performance due to genetic non-uniformity in hybrid plants.
Innovation Solution
The development of the pea line SV7688QF, which is a mid-season, determinate afila variety with enhanced sweetness and multiple disease resistances, achieved through pedigree selection and genetic stabilization, ensuring uniformity and stability across environmental influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pedigree breeding and recurrent selection are used to develop inbred plants, then genetic diversity is improved, but uniformity and predictability of hybrid performance deteriorate
Solution Approach 1:
The breeding program segments the development process into distinct phases: first developing homozygous inbred lines through self-pollination and selection, then crossing these stabilized lines to produce uniform F1 hybrids. This segmentation allows genetic diversity to be captured in the inbred line development phase while ensuring uniformity in the final hybrid phase.
Solution Approach 2:
The patent applies preliminary action by extensively self-pollinating and selecting parent lines over multiple generations before crossing them. This preliminary stabilization of the parent lines ensures that when hybrids are produced, they will be uniform and predictable, resolving the contradiction between diversity and uniformity.
2Adaptability or versatility
If cross-pollination is used to produce hybrid plants, then genetic diversity is improved, but uniformity of the population deteriorates
Solution Approach 1:
The patent ensures homogeneity by using homozygous inbred lines as parents, which are genetically uniform. When these uniform parents cross-pollinate, they produce F1 hybrids that are also uniform because both parents contribute identical alleles at each locus. This maintains population uniformity while still benefiting from hybrid vigor.
3Manufacturing precision
If self-pollination is used to develop homozygous lines, then uniformity is improved, but genetic diversity deteriorates
Solution Approach 1:
The breeding program segments the development process into distinct phases: first developing homozygous inbred lines through self-pollination and selection, then crossing these stabilized lines to produce uniform F1 hybrids. This segmentation allows genetic diversity to be captured in the inbred line development phase while ensuring uniformity in the final hybrid phase.
Solution Approach 2:
The patent applies preliminary action by extensively self-pollinating and selecting parent lines over multiple generations before crossing them. This preliminary stabilization of the parent lines ensures that when hybrids are produced, they will be uniform and predictable, resolving the contradiction between diversity and uniformity.
Data Source
AI summary
The invention provides seed and plants of the pea line designated SV7688QF. The invention thus relates to the plants, seeds and tissue cultures of pea line SV7688QF, and to methods for producing a pea plant produced by crossing a plant of pea line SV7688QF with itself or with another pea plant, such as a plant of another line. The invention further relates to seeds and plants produced by such crossing. The invention further relates to parts of a plant of pea line SV7688QF, including the seed, pod, and gametes of such plants.