Maize Inbred PH1V8M Breeding for Disease Resistance and Yield
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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, PH1V8M, which is bred to incorporate traits like resistance to diseases, insects, heat, and drought, along with improved agronomic qualities through specific breeding processes and genetic manipulation, including backcross conversion and transformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding techniques are used to combine desirable traits, then disease resistance and insect resistance can be achieved, but the time required for breeding and the complexity of the breeding process increases
Solution Approach 1:
The patent utilizes pre-characterized inbred lines with known genetic profiles and predetermined traits. These inbreds are developed in advance with specific disease resistance, insect resistance, and maturity characteristics, allowing breeders to combine them directly without extensive field testing and selection cycles, thereby reducing breeding time while maintaining trait reliability
Solution Approach 2:
The patent employs molecular markers and genetic profiling to copy and track specific resistance genes and traits through generations. By using marker-assisted selection, the desired traits are precisely replicated and maintained in progeny, reducing the time required for phenotypic evaluation while ensuring trait reliability
2Productivity
If multiple desirable traits are combined in a single variety, then agronomic quality and yield potential improve, but the uniformity of plant characteristics deteriorates
Solution Approach 1:
The patent utilizes precise genetic parameter control by selecting inbred lines with specific allele combinations at multiple loci. By controlling the genetic parameters and using molecular marker guidance, the patent achieves consistent expression of multiple traits (disease resistance, insect resistance, maturity) across the population, maintaining uniformity while combining multiple desirable characteristics for high yield
Solution Approach 2:
The patent develops inbred lines that serve multiple functions simultaneously - providing disease resistance, insect resistance, and uniform maturity in a single genetic background. These multi-functional inbreds can be used as either male or female parents in hybrid production, ensuring both trait combination and population uniformity for mechanical harvesting
3Productivity
If inbred lines with specific traits are crossed to produce hybrids, then yield and trait expression improve, but the complexity of hybrid seed production increases
Solution Approach 1:
The patent segments the breeding program into distinct components: pre-characterized inbred lines with specific trait combinations, molecular marker systems for identification, and standardized crossing protocols. This segmentation allows hybrid seed production to be systematically managed, reducing complexity while maintaining high yield and trait expression in the final hybrid
Data Source
AI summary
A novel maize variety designated PH1V8M and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1V8M with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1V8M 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 PH1V8M or a locus conversion of PH1V8M with another maize variety.