Wheat Variety 6PVCB46B Breeding via Double Haploid Segmentation
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Solution Overview
Problem
Current wheat breeding methods face challenges in efficiently combining desirable traits such as high seed yield, disease resistance, drought tolerance, and improved milling properties into a single wheat variety.
Innovation Solution
The development of the wheat variety 6PVCB46B, which involves crossing homozygous lines and employing advanced breeding techniques like double haploid methods to introduce specific traits, including transgenic modifications for enhanced resistance and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional wheat breeding methods are used, then the breeding process is simple, but the efficiency of combining desirable traits (yield, disease resistance, drought tolerance, milling properties) into a single variety is low
Solution Approach 1:
The patent employs pre-breeding lines and advanced breeding techniques (including double haploid methods and transgenic modifications) to pre-establish desirable traits before final variety development. This preliminary action allows efficient combination of multiple traits (yield, disease resistance, drought tolerance, milling properties) while maintaining manageable process complexity through structured breeding protocols.
2Productivity
If advanced breeding techniques (crossing homozygous lines, double haploid methods, transgenic modifications) are used, then the combination of desirable traits is efficient, but the breeding process becomes more complex
Solution Approach 1:
The breeding process is segmented into distinct stages: pre-breeding phase (developing lines with individual traits), advanced breeding phase (using double haploid methods and transgenic modifications to combine traits), and variety development phase. This segmentation allows efficient trait combination while managing complexity through standardized protocol implementation at each stage.
Solution Approach 2:
The patent utilizes changes in genetic parameters through controlled crosses between homozygous lines, double haploid chromosome doubling, and transgenic gene insertion. These parameter changes (genetic composition, chromosome number, gene expression) enable efficient trait combination while the methods are standardized to maintain process manageability.
3Reliability
If multiple desirable traits are combined into a single variety, then the variety achieves superior performance, but the breeding process requires significant intervention and time
Solution Approach 1:
Desirable traits are pre-established in parent lines through controlled breeding before the main variety development. This preliminary action ensures trait uniformity and stability in the final variety while reducing the time required for trait combination, as the foundational traits are already optimized in the parental germplasm.
Solution Approach 2:
The patent uses tissue culture techniques to produce multiple copies of genetically identical plants from a single plantlet. This copying method ensures uniformity and stability of desired traits across all plants while significantly reducing the time required compared to traditional seed propagation methods.
Data Source
AI summary
A wheat variety designated 6PVCB46B, the plants and seeds of wheat variety 6PVCB46B, methods for producing a wheat plant produced by crossing the variety 6PVCB46B with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety 6PVCB46B with another wheat line or plant, and the creation of variants by backcrossing, mutagenesis or transformation of variety 6PVCB46B are disclosed. Methods for producing other wheat varieties or breeding lines derived from wheat variety 6PVCB46B and to wheat varieties or breeding lines produced by those methods are also provided.