Sorghum Inbred PH2707MW Trait Segmentation and Uniformity
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Solution Overview
Problem
Current plant breeding techniques for sorghum face challenges in combining desirable traits such as disease resistance, drought tolerance, and high yield in a single hybrid or variety, while maintaining uniformity and stability, which is essential for mechanical harvesting and commercial viability.
Innovation Solution
The development of sorghum line PH2707MW, which combines desirable traits through backcross conversion and transformation, retaining the genetic integrity of the base genetics with introduced traits, and the use of cytoplasmic male sterility systems to enhance hybrid seed production and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding techniques are used to combine desirable traits, then disease resistance and drought tolerance can be improved, but maintaining uniformity and stability becomes difficult
Solution Approach 1:
The patent segments the breeding process into distinct phases: developing inbred lines with specific traits, then combining them through controlled hybridization. This segmentation allows each parent line to be optimized independently for uniformity, while the hybrid combines desired traits from both parents, resolving the contradiction between trait combination and uniformity maintenance.
Solution Approach 2:
The patent applies preliminary action by developing and stabilizing inbred lines through multiple generations of self-pollination before hybridization. This preliminary stabilization ensures uniformity is established in parent lines, which then maintains consistency in the hybrid progeny while allowing combination of desirable traits from different parental lines.
2Productivity
If multiple desirable traits are combined in a single hybrid, then productivity and yield can be improved, but the complexity of breeding and maintaining the hybrid increases
Solution Approach 1:
The patent merges multiple desirable traits from different inbred lines into a single hybrid combination. By consolidating traits such as disease resistance, drought tolerance, and high yield potential into one optimized hybrid, the breeding process achieves productivity improvement while managing complexity through systematic trait integration rather than separate breeding programs for each trait.
Solution Approach 2:
The patent creates a universal breeding system using cytoplasmic male sterility that can be applied across multiple hybrids and trait combinations. This multi-functional approach allows the same sterility system to facilitate hybridization for various trait combinations, reducing overall breeding complexity while enabling multiple productivity improvements across different hybrid varieties.
3Stability of the object's composition
If inbred varieties are used to facilitate hybrid development, then uniformity of plant characteristics can be improved, but the time required for breeding increases
Solution Approach 1:
The patent applies preliminary action by pre-developing stabilized inbred lines with known uniformity characteristics before hybridization. This preliminary work, though time-consuming, is performed once for each parent line, and then these lines can be repeatedly used to produce uniform hybrids, amortizing the time investment across multiple hybrid varieties and reducing overall breeding time.
Solution Approach 2:
The patent uses copying by maintaining and propagating established inbred lines that have already achieved uniformity through previous breeding cycles. These proven inbred lines serve as templates that can be copied and used repeatedly as parent lines, avoiding the need to re-develop uniformity from scratch for each new hybrid, thus reducing time loss while maintaining uniformity standards.
Data Source
AI summary
A novel sorghum variety designated PH2707MW and seed, plants and plant parts thereof are provided. Methods for producing a plant comprise crossing sorghum variety PH2707MW with another plant. Sorghum seed, plants and plant parts produced by crossing sorghum variety PH2707MW with another plant are described. Methods for producing a plant containing in its genetic material one or more traits introgressed into PH2707MW include one or both of backcross conversion and transformation. Hybrid sorghum seed, plants or plant parts produced by crossing the sorghum variety PH2707MW or a locus conversion of PH2707MW with another sorghum variety are disclosed.