Spinach Line SMB66-1082F Breeding for Downy Mildew Resistance
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Solution Overview
Problem
Current spinach breeding programs lack new lines with improved traits such as enhanced yield, resistance to diseases, and adaptability to stress conditions, which are essential for improving crop quality and farmer and consumer benefits.
Innovation Solution
Development of the spinach line SMB66-1082F, which exhibits traits like mid-late bolting, long petioles, dark green leaf color, resistance to downy mildew, and stay-green characteristics under stress, achieved through pedigree selection and potentially enhanced by genetic transformation techniques, resulting in a uniform and stable seed population.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If pedigree breeding and recurrent selection are used to develop inbred plants, then genetic uniformity and true breeding progeny are achieved, but breeding time and program complexity increase
Solution Approach 1:
The patent applies preliminary action by establishing和维护ing ongoing breeding programs that continuously develop new spinach lines with improved traits. The breeding infrastructure, including parental lines and selection protocols, is prepared in advance so that new varieties can be developed systematically over time rather than starting from scratch each time a new variety is needed.
Solution Approach 2:
The patent implements continuity of useful action through sustained breeding programs that have been actively developing new spinach lines across multiple generations. The breeding process is maintained continuously rather than intermittently, allowing for the steady accumulation of genetic improvements and the consistent production of uniform, true-breeding progeny.
2Reliability
If self-pollination and selection over many generations are performed to create homozygous plants, then uniform true breeding progeny are produced, but the breeding process becomes lengthy and complex
Solution Approach 1:
The patent applies self-service by utilizing the natural self-pollination mechanism of spinach plants to achieve homozygosity. Rather than requiring complex external intervention for each pollination event, the plants naturally self-pollinate, and breeders simply need to select and propagate the desired phenotypes from the resulting progeny. This leverages the plant's own reproductive mechanism to achieve the breeding goal.
Solution Approach 2:
The patent uses copying by creating and propagating homozygous inbred lines that can be replicated indefinitely with consistent traits. Once a desired genotype is established through selection, it can be copied through self-pollination to produce uniform progeny that reliably reproduce the same characteristics, eliminating the need to重新开始 the selection process for each new crop.
3Productivity
If new spinach lines with improved traits are developed, then crop yield and quality are enhanced, but the breeding program requires sustained effort and resources
Solution Approach 1:
The patent applies merging by combining multiple desirable traits into single spinach lines through controlled crossing and selection. Rather than developing separate lines for each trait (disease resistance, yield, quality), the breeding program integrates these traits together in unified varieties, achieving multiple benefits simultaneously from each breeding investment.
Solution Approach 2:
The patent implements universality by developing spinach lines that possess multiple functions and traits within a single variety. The bred lines are designed to simultaneously provide disease resistance, high yield, and superior quality characteristics, making each developed line a multi-functional solution that addresses several agricultural needs at once rather than requiring separate specialized lines.
Data Source
AI summary
The invention provides seed and plants of the spinach line designated SMB66-1082F. The invention thus relates to the plants, seeds and tissue cultures of spinach line SMB66-1082F, and to methods for producing a spinach plant produced by crossing a plant of spinach line SMB66-1082F with itself or with another spinach 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 spinach line SMB66-1082F, including the fruit and gametes of such plants.