Spinach Line SMB66-1086M Downy Mildew 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 stress conditions, which are essential for enhancing crop quality and farmer-consumer benefits.
Innovation Solution
Development of the spinach line SMB66-1086M, which is homozygous and exhibits traits like mid-late bolting, fast growth, erect growth habit, dark green leaf color, spineless seeds, resistance to downy mildew, and stay-green characteristics under stress, achieved through pedigree selection and potentially enhanced by genetic transformation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop spinach lines, then existing varieties with some beneficial traits are obtained, but new lines with further improved traits (yield, disease resistance, stress tolerance) are lacking
Solution Approach 1:
The patent combines multiple desirable traits (yield, disease resistance to downy mildew races Pfs 1-7, stress tolerance, and adaptability) into a single spinach line SMB66-1086M through systematic breeding, merging previously separate trait improvements into one unified variety
Solution Approach 2:
The breeding program systematically changed genetic parameters through pedigree selection and recurrent selection methods to achieve homozygosity and stabilize multiple traits simultaneously, transforming the genetic composition to express enhanced disease resistance and yield
2Stability of the object's composition
If pedigree selection and recurrent selection are used to develop homozygous inbred plants, then uniform varieties are produced, but the process requires multiple generations and extensive evaluation time
Solution Approach 1:
The patent employs preliminary action by implementing systematic pedigree selection and recurrent selection protocols from the outset to accelerate homozygosity achievement and trait stabilization, reducing the number of generations required compared to traditional methods
Solution Approach 2:
Extensive evaluation and selection feedback mechanisms are implemented throughout the breeding process to monitor progress toward homozygosity and trait expression, allowing for及时调整 (adjustment) of selection criteria to optimize breeding efficiency and reduce time requirements
Data Source
AI summary
The invention provides seed and plants of the spinach line designated SMB66-1086M. The invention thus relates to the plants, seeds and tissue cultures of spinach line SMB66-1086M, and to methods for producing a spinach plant produced by crossing a plant of spinach line SMB66-1086M 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 SMB66-1086M, including the fruit and gametes of such plants.