Canola DN051692 Cultivar Breeding via Dhaploid Intermediaries
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Solution Overview
Problem
The development of new canola cultivars is a time-consuming and unpredictable process due to the complexity of combining desirable traits such as high yield, disease resistance, and nutritional quality, with breeders facing challenges in identifying genetically superior plants amidst confounding traits and environmental factors.
Innovation Solution
The introduction of the canola cultivar DN051692, which is developed through traditional breeding and dihaploid methodology, incorporating traits like high oleic acid content, blackleg resistance, Clearfield herbicide tolerance, and low glucosinolates, using methods such as backcrossing and genetic engineering to introduce specific genes for herbicide resistance and disease tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to combine desirable traits, then genetic diversity and trait combination are improved, but the breeding process becomes time-consuming and unpredictable
Solution Approach 1:
The patent applies preliminary action by creating dihaploid plants (containing only one set of chromosomes) as a starting point before breeding. This preliminary step allows breeders to work with genetically simplified material where trait inheritance is more predictable, reducing the time required for subsequent breeding cycles while maintaining genetic diversity through controlled crosses.
2Reliability
If multiple desirable traits are combined in a single cultivar, then agronomic quality and nutritional value are improved, but the complexity of identifying genetically superior plants increases
Solution Approach 1:
The patent uses dihaploid plants as an intermediary stage in the breeding process. These plants contain only one set of chromosomes, making it easier to track and evaluate specific genetic traits. This intermediary step simplifies the complexity of evaluating multiple desirable traits simultaneously, as breeders can more easily identify which traits are inherited from which parent plants before proceeding to develop the final multi-trait cultivar.
3Adaptability or versatility
If conventional breeding methods are used, then natural genetic variation is maintained, but the precision of introducing specific desired traits is reduced
Solution Approach 1:
The patent applies preliminary action by first creating dihaploid plants with a single set of chromosomes before introducing desired traits through controlled crosses. This preliminary genetic simplification allows for more precise tracking and introduction of specific traits, as breeders can more accurately determine which traits are being inherited. After the desired traits are established, the plants can be crossed to restore normal chromosome numbers while maintaining the introduced traits along with natural genetic variation.
Data Source
AI summary
The present invention relates to a new and distinctive canola cultivar, designated DN051692. Also included are seeds of canola cultivar DN051692, to the plants, or plant parts, of canola DN051692 and to methods for producing a canola plant produced by crossing the canola DN051692 with itself or another canola cultivar, and the creation of variants by mutagenesis or transformation of canola DN051692.