Wheat Variety 6PUMH97B Locus Conversion for Trait Stability
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Solution Overview
Problem
Current wheat breeding methods face challenges in combining desirable traits such as high seed yield, disease resistance, drought tolerance, and improved milling properties into a single wheat variety, while maintaining uniformity and stability across generations.
Innovation Solution
The development of the wheat variety 6PUMH97B, which involves genetic modification and locus conversion techniques, including transgenic approaches and backcrossing, to introduce traits like herbicide resistance, disease resistance, and improved nutritional quality, while ensuring homozygosity and phenotypic stability through rigorous breeding and selection methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional wheat breeding methods are used to combine multiple desirable traits, then the number of traits incorporated increases, but the uniformity and stability across generations deteriorates
Solution Approach 1:
The patent employs locus conversion to precisely alter specific genetic loci while preserving the rest of the genome, enabling introduction of desirable traits (herbicide resistance, disease resistance, nutritional quality) without disrupting the uniformity and stability of the base variety 6PUMH97B across generations
2Reliability
If genetic modification techniques are applied to introduce desirable traits, then the nutritional quality and resistance traits improve, but the complexity of the breeding process increases
Solution Approach 1:
The breeding process is segmented into distinct stages: initial cross to introduce traits, followed by multiple backcrosses to 6PUMH97B to recover the base genome, and final selection for homozygosity. This segmentation manages complexity by breaking down the genetic modification process into controlled steps
Solution Approach 2:
The patent performs preliminary backcrossing generations before final trait selection and stabilization, preparing the genetic background in advance to ensure uniformity and reduce the complexity of subsequent breeding steps
Data Source
AI summary
A wheat variety designated 6PUMH97B, the plants and seeds of wheat variety 6PUMH97B, methods for producing a wheat plant produced by crossing the variety 6PUMH97B with another wheat plant, and hybrid wheat seeds and plants produced by crossing the variety 6PUMH97B with another wheat line or plant, and the creation of variants by backcrossing, mutagenesis or transformation of variety 6PUMH97B are disclosed. Methods for producing other wheat varieties or breeding lines derived from wheat variety 6PUMH97B and to wheat varieties or breeding lines produced by those methods are also provided.