Maize Inbred PH1DBV Breeding via Doubled Haploid and Marker Selection
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Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and uniformity, which are essential for efficient crop production and mechanical harvesting.
Innovation Solution
Development of a novel maize variety, PH1DBV, through a breeding process involving crossing inbred lines, doubled haploid production, and selfing to achieve homozygosity, along with potential locus conversions and transgenic enhancements for improved agronomic traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but the time to crop maturity increases and uniformity of plant characteristics deteriorates
Solution Approach 1:
The patent employs doubled haploid technology to pre-establish homozygous lines before final variety development. This preliminary action of creating genetically stable lines upfront allows for faster subsequent breeding operations and reduces the time required for trait combination and stabilization in later generations.
Solution Approach 2:
The patent utilizes molecular marker-assisted selection to change the parameter of selection efficiency. By using DNA markers to track desirable traits, the breeding process can identify and select for disease resistance and drought tolerance much more quickly than traditional phenotypic selection, thereby reducing the time to maturity while maintaining trait reliability.
2Reliability
If traditional plant breeding is used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but uniformity of plant characteristics deteriorates
Solution Approach 1:
The patent employs doubled haploid technology to pre-establish homozygous lines before final variety development. This preliminary action of creating genetically stable lines upfront allows for faster subsequent breeding operations and reduces the time required for trait combination and stabilization in later generations.
Solution Approach 2:
The patent replaces traditional mechanical/phenotypic selection methods with molecular marker-assisted selection. By using DNA markers to track desirable traits, the breeding process can identify and select for disease resistance and drought tolerance much more quickly and accurately, thereby maintaining uniformity while reducing breeding time.
3Productivity
If mechanical harvesting is implemented, then harvesting efficiency increases, but uniformity of plant characteristics becomes more critical and harder to achieve
Solution Approach 1:
The patent replaces traditional mechanical/phenotypic selection methods with molecular marker-assisted selection. By using DNA markers to track desirable traits, the breeding process can identify and select for disease resistance and drought tolerance much more quickly and accurately, thereby maintaining uniformity while reducing breeding time.
Solution Approach 2:
The patent utilizes molecular marker-assisted selection to change the parameter of selection efficiency. By using DNA markers to track desirable traits, the breeding process can identify and select for disease resistance and drought tolerance much more quickly than traditional phenotypic selection, thereby reducing the time to maturity while maintaining trait reliability.
Data Source
AI summary
A novel maize variety designated PH1DBV and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1DBV with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1DBV through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PH1DBV or a locus conversion of PH1DBV with another maize variety.