Wheat Cultivar WB-112 Multi-Trait Breeding via Segmentation
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Solution Overview
Problem
Current wheat cultivars lack integrated solutions for herbicide tolerance, pest resistance, disease resistance, and metabolic modifications such as modified fatty acid and carbohydrate metabolism, which are essential for improved yield and stress tolerance.
Innovation Solution
The development of wheat cultivar WB-112, which involves crossing with plants possessing desired traits, followed by backcrossing to introduce and stabilize these traits, ensuring the resulting plants retain the physiological and morphological characteristics of WB-112 while acquiring enhanced resistance and metabolic modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple traits (herbicide tolerance, pest resistance, disease resistance, metabolic modifications) are integrated into a single wheat cultivar, then the overall performance and adaptability of the cultivar is improved, but the complexity of breeding and selection processes increases
Solution Approach 1:
The breeding program is divided into distinct phases: initial crossing to introduce desired traits, backcrossing to recover parent characteristics, and multiple selection cycles to stabilize the genome. Each phase focuses on specific objectives, making the complex multi-trait integration manageable through systematic segmentation of the breeding process.
Solution Approach 2:
The patent employs preliminary backcrossing generations (BC1, BC2, BC3) before final variety release. These preliminary generations are used to progressively introduce desired traits while maintaining the background genetics of the recurrent parent, ensuring trait integration is achieved through staged preliminary actions rather than simultaneous complex operations.
2Stability of the object's composition
If backcrossing is performed multiple times to stabilize desired traits, then the genetic uniformity and trait stability are improved, but the time required for variety development increases
Solution Approach 1:
The breeding program incorporates continuous feedback through phenotypic evaluation and molecular marker analysis at each backcrossing generation. This feedback mechanism allows for real-time monitoring of genetic stability and trait expression, enabling the breeding program to adjust the number of backcrossing generations required based on actual observed stability rather than following a fixed time schedule.
Solution Approach 2:
The patent employs molecular markers and genomic tools to replace traditional time-consuming mechanical methods of genetic analysis. These substitution tools enable rapid verification of genetic stability and trait inheritance, reducing the time required for multiple backcrossing generations by providing quick, accurate genetic information without extensive manual screening.
3Reliability
If selective backcrossing is used to introduce desired traits, then the purity of desired traits is improved, but the loss of original cultivar characteristics may occur
Solution Approach 1:
The backcrossing program applies local quality by focusing genetic modification at specific loci while maintaining the overall genetic background of the recurrent parent. Through targeted selection and molecular marker-guided breeding, the desired traits are introduced at specific genomic locations without affecting the stability of other important cultivar characteristics, achieving trait purity locally while preserving overall cultivar identity.
Solution Approach 2:
The final cultivar is constructed as a composite genetic material that integrates multiple desired traits (herbicide tolerance, pest resistance, disease resistance, metabolic modifications) with the background genetics of the recurrent parent. This composite approach ensures that the resulting cultivar possesses both the purity of introduced traits and the stability of original cultivar characteristics through careful compositional balancing.
Data Source
AI summary
A wheat cultivar, designated WB-112, is disclosed. The invention relates to the seeds, plants, and hybrids of wheat cultivar WB-112, and to methods for producing a wheat plant produced by crossing plants from wheat cultivar WB-112 with themselves or with plants from another wheat variety. The invention also relates to methods for producing a wheat plant containing in its genetic material one or more transgenes and to the transgenic wheat plants and plant parts produced by those methods. The invention also relates to wheat varieties or breeding varieties and plant parts derived from wheat cultivar WB-112, to methods for producing other wheat varieties, lines or plant parts derived from wheat cultivar WB-112, and to the wheat plants, varieties, and their parts derived from the use of those methods. The invention further relates to hybrid wheat seeds and plants produced by crossing wheat cultivar WB-112 with another wheat cultivar.