Soybean Variety D4470236 Breeding Program
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Solution Overview
Problem
The development of new soybean varieties is a time-consuming and unpredictable process due to the complexity of combining desirable traits like seed yield, disease resistance, and environmental adaptability, making it challenging for breeders to consistently produce superior varieties using conventional breeding methods.
Innovation Solution
The soybean variety D4470236 is developed through a specific breeding program that includes crossing, selfing, and selection, incorporating traits such as herbicide resistance, disease resistance, and improved nutritional quality, and can be used in various breeding techniques like recurrent selection, mass selection, and genetic transformation to produce hybrid seeds and inbred plants with desired characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to develop new soybean varieties, then genetic diversity and trait combination are achieved, but the process becomes time-consuming and unpredictable
Solution Approach 1:
The patent applies preliminary action by pre-screening parental lines for specific desirable traits (herbicide resistance, disease resistance, nutritional quality) before crossing. This advance selection and preparation of parental germplasm with known superior traits reduces the time required for subsequent selection and evaluation stages, making the breeding process more predictable while maintaining genetic diversity
2Productivity
If multiple desirable traits are combined in a single variety, then agronomic quality and yield are improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies segmentation by dividing the breeding program into distinct phases: selecting parental lines with specific traits, performing controlled crosses, evaluating F1 hybrids for heterosis, and advancing selected lines through systematic generations. This segmented approach to multi-trait breeding reduces program complexity by organizing the integration of multiple traits (yield, disease resistance, herbicide resistance) into manageable, sequential steps
3Stability of the object's composition
If repeated selfing and selection are performed to stabilize varieties, then genetic uniformity is achieved, but the breeding process extends over many years
Solution Approach 1:
The patent applies feedback by implementing systematic evaluation and selection at each generation (F2, F3, F4, etc.), where performance data on yield, disease resistance, and other traits are collected and used to guide subsequent selection decisions. This feedback-driven selection process accelerates the achievement of genetic uniformity by identifying and advancing only the most promising lines, reducing the time required for variety stabilization
4Measurement precision
If superior individual plants are identified through observation, then genetic superiority is detected, but environmental factors and other traits mask the true genotypic value
Solution Approach 1:
The patent applies the intermediary principle by using controlled trial environments and standardized evaluation protocols as mediators between the genetic material and the evaluator. By conducting trials in controlled conditions with replicated plots and using statistical analysis methods, the true genotypic value of individual plants can be distinguished from environmental effects and other confounding traits, improving measurement precision without excessive complexity
Data Source
AI summary
The invention relates to the soybean variety designated D4470236. Provided by the invention are the seeds, plants and derivatives of the soybean variety D4470236. Also provided by the invention are tissue cultures of the soybean variety D4470236 and the plants regenerated therefrom. Still further provided by the invention are methods for producing soybean plants by crossing the soybean variety D4470236 with itself or another soybean variety and plants produced by such methods.