Spinach Line SSB66-1092M Breeding for Disease Resistance
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Solution Overview
Problem
Current spinach breeding programs lack new lines with improved traits such as increased yield, resistance to diseases, and adaptability to various environmental conditions, which limits crop quality and productivity.
Innovation Solution
Development of the spinach line SSB66-1092M, which is a homozygous line with specific traits like slow bolting, fast growth, resistance to downy mildew, and semi-erect growth habit, achieved through pedigree selection and potentially enhanced by genetic transformation techniques to introduce traits like herbicide tolerance and insect resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop spinach lines, then existing varieties have been obtained, but new lines with improved traits such as increased yield, disease resistance, and environmental adaptability are lacking
Solution Approach 1:
The patent applies parameter changes by developing a new spinach line (SSB66-1092M) with modified genetic parameters that simultaneously improve multiple traits including yield, disease resistance, and environmental adaptability. The breeding process involves selecting and combining specific genetic parameters to create a line that outperforms traditional varieties across multiple dimensions.
2Stability of the object's composition
If homozygous inbred plants are developed through pedigree breeding, then uniform varieties are produced, but the process requires multiple generations of selfing and selection which is time-consuming
Solution Approach 1:
The patent employs preliminary action by pre-selecting parent lines with desirable traits and using targeted crossing strategies to accelerate the development of uniform homozygous lines. The SSB66-1092M line was developed through systematic pedigree selection and evaluation across generations, with careful selection of parental combinations to reduce the time required to achieve uniformity and stability.
3Productivity
If spinach is grown in conditions that maximize yield, then productivity increases, but the plant is susceptible to diseases such as downy mildew and other harmful factors
Solution Approach 1:
The patent converts the harmful effect of disease susceptibility into a benefit by developing the SSB66-1092M line with enhanced resistance to downy mildew and other diseases. The breeding process selected for resistance traits while maintaining or improving yield potential, effectively transforming the vulnerability to disease into a strength through genetic improvement.
4Adaptability or versatility
If multiple breeding objectives are pursued simultaneously, then comprehensive improvement is achieved, but the complexity of the breeding program increases
Solution Approach 1:
The patent merges multiple breeding objectives by developing a single spinach line (SSB66-1092M) that integrates yield improvement, disease resistance, and environmental adaptability into one unified variety. The breeding program combined pedigree selection, evaluation of multiple traits, and systematic crossing to achieve comprehensive improvement across all desired characteristics simultaneously.
Data Source
AI summary
The invention provides seed and plants of the spinach line designated SSB66-1092M. The invention thus relates to the plants, seeds and tissue cultures of spinach line SSB66-1092M, and to methods for producing a spinach plant produced by crossing a plant of spinach line SSB66-1092M 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 SSB66-1092M, including the fruit and gametes of such plants.