Maize Inbred PH1DAM Breeding for Stress Resistance and Uniformity
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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 the novel maize variety PH1DAM, which is a homozygous inbred line with improved traits like resistance to diseases, insects, heat, and drought, and its use in breeding processes to create hybrid seeds with enhanced agronomic qualities through crossing and locus conversion methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding methods are used to combine desirable traits, then disease resistance and insect resistance can be achieved, but uniformity of plant characteristics and adaptability to stress conditions deteriorate
Solution Approach 1:
The breeding program segments the combination of desirable traits by using PH1DAM as a uniform inbred base and systematically introgressing specific traits through backcrossing. This allows disease resistance and other traits to be combined while maintaining the uniformity of the PH1DAM genetic background, resolving the contradiction between trait combination and uniformity preservation.
Solution Approach 2:
The patent changes the genetic parameter by developing PH1DAM as a homozygous inbred line with specific genetic characteristics that provide both disease resistance and uniformity. This parameter change in the base genetics allows simultaneous achievement of reliability (disease resistance) and adaptability (uniformity across stress conditions) that traditional breeding could not achieve.
2Productivity
If multiple desirable traits are combined in a single variety, then yield and agronomic quality improve, but the complexity of breeding processes increases
Solution Approach 1:
The patent applies preliminary action by first developing the PH1DAM inbred line with desired base traits, then using it as a ready-made platform for subsequent trait introgression. This preliminary preparation simplifies the overall breeding process for combining multiple traits, as each new trait can be added through systematic backcrossing rather than complex multi-parent breeding programs.
Solution Approach 2:
PH1DAM serves as a universal base genetics platform that can be used to develop multiple hybrid varieties with different trait combinations. This multi-functionality reduces breeding process complexity, as the same PH1DAM base can be used for developing varieties targeted at different markets or environmental conditions by introgressing different supplemental traits.
Data Source
AI summary
A novel maize variety designated PH1DAM and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1DAM with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1DAM 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 PH1DAM or a locus conversion of PH1DAM with another maize variety.