Maize Inbred PH1C91 Breeding via Marker-Assisted 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 yield improvement.
Innovation Solution
The development of a novel maize variety, PH1C91, which is a homozygous inbred line with specific traits introgressed through backcross conversion and transformation, allowing for the creation of hybrid seeds and plants with enhanced resistance to various stresses and improved agronomic characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding methods are used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but the time required for breeding and the complexity of the breeding process increase
Solution Approach 1:
The patent employs preliminary action by using marker-assisted selection (MAS) to pre-identify and select plants carrying desired resistance genes before actual breeding crosses are made. This allows breeders to screen large populations efficiently using molecular markers, pre-selecting individuals with desirable traits such as disease resistance or drought tolerance, thereby reducing the time and complexity of traditional multi-generational breeding processes while maintaining reliable trait combination
2Productivity
If multiple desirable traits are combined in a single variety, then yield and stress resistance improve, but the complexity of managing the breeding program and maintaining uniformity increases
Solution Approach 1:
The patent applies segmentation by breaking down the complex task of combining multiple traits into manageable segments through modular breeding approaches. Each desired trait (disease resistance, drought tolerance, yield components) is targeted separately using specific molecular markers and selection criteria. This segmentation allows breeders to independently develop and validate each trait component before integrating them, reducing overall program complexity while achieving multi-trait varieties with improved yield and stress resistance
Solution Approach 2:
The patent implements feedback mechanisms through marker-assisted selection and evaluation systems that continuously monitor and measure the presence and expression of desired traits during the breeding process. Molecular markers provide real-time feedback on genotype composition, allowing breeders to make informed selection decisions at each generation. This feedback loop ensures uniformity is maintained while multiple desirable traits are successfully combined in the final variety
Data Source
AI summary
A novel maize variety designated PH1C91 and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1C91 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1C91 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 PH1C91 or a locus conversion of PH1C91 with another maize variety.