Canola Inbred Line 4PRSD48R for Marker-Assisted Trait Introgression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing canola varieties face challenges in achieving a balance of low erucic acid and glucosinolate content, and there is a need for improved breeding methods to introduce specific traits such as male sterility and disease resistance efficiently.
Innovation Solution
Development of a novel Brassica napus line, 4PRSD48R, with controlled cytoplasmic male sterility and low erucic acid and glucosinolate content, utilizing advanced breeding techniques like backcross conversion, transformation, and molecular markers for trait introgression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If traditional breeding methods are used to achieve low erucic acid and glucosinolate content, then quality improvement is possible, but breeding time and complexity increase significantly
Solution Approach 1:
The patent replaces traditional mechanical breeding methods (crossing, selection, and recombination over multiple generations) with molecular marker technology and DNA-based selection. This allows direct identification and selection of plants with desired low erucic acid and glucosinolate content through genetic analysis, dramatically reducing the time required to achieve quality improvement without relying on lengthy phenotypic selection processes.
Solution Approach 2:
The patent introduces molecular markers as intermediaries between genotype and phenotype selection. These markers serve as genetic indicators that directly correlate with low erucic acid and glucosinolate content, allowing breeders to select plants with desired quality traits at the DNA level rather than waiting for phenotypic expression, thus accelerating the breeding process while maintaining quality improvement.
2Adaptability or versatility
If male sterility traits are introduced through traditional breeding, then hybrid seed production capability is improved, but genetic uniformity and breeding efficiency decrease
Solution Approach 1:
The patent replaces complex traditional breeding procedures for introducing male sterility with molecular marker-assisted selection. By using DNA markers linked to male sterility genes, the breeding process becomes more controlled and efficient, maintaining genetic uniformity while achieving the desired hybrid seed production capability without the complexity of multiple generations of crossing and selection.
Solution Approach 2:
The patent uses molecular markers as genetic copies or indicators of the male sterility trait. These markers replicate the information about male sterility status, allowing breeders to identify and select plants with the desired trait through simple molecular testing rather than complex phenotypic evaluation and multiple crossing operations, thus reducing breeding process complexity.
3Adaptability or versatility
If multiple traits are introgressed through conventional backcrossing, then trait diversity is improved, but breeding precision and time efficiency deteriorate
Solution Approach 1:
The patent replaces conventional backcrossing procedures with molecular marker-assisted multi-trait selection. This allows simultaneous selection for multiple traits (low erucic acid, low glucosinolate, male sterility, disease resistance) through DNA analysis, achieving high breeding precision by selecting plants that possess all desired traits based on their genetic makeup rather than relying on probabilistic inheritance patterns of traditional backcrossing.
Solution Approach 2:
The patent introduces molecular markers as intermediaries that directly link to multiple target traits. These markers serve as genetic signposts that allow breeders to precisely track and select for multiple traits simultaneously, achieving both trait diversity and breeding precision by selecting plants based on their marker profile rather than undergoing multiple generations of conventional backcrossing with limited selection accuracy.
Data Source
AI summary
A canola variety designated 4PRSD48R and seed, plants and plant parts thereof. Methods for producing a canola plant that comprise crossing canola variety 4PRSD48R with another canola plant. Methods for producing a canola plant containing in its genetic material one or more traits introgressed into 4PRSD48R through backcross conversion and/or transformation, and to the canola seed, plant and plant part produced thereby. Hybrid canola seed, plant or plant part produced by crossing the canola variety 4PRSD48R or a locus conversion of 4PRSD48R with another canola variety.