Maize Variety PH13JF Breeding via Molecular 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
The development of a novel maize variety, PH13JF, which incorporates specific genetic traits through backcross conversion and transformation, enhancing resistance to various stresses and improving agronomic qualities like yield and maturity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding methods are used to combine desirable traits, then the breeding process can be completed using conventional techniques, but the ability to effectively combine multiple desirable traits such as disease resistance, drought tolerance, and uniformity is limited
Solution Approach 1:
The patent applies parameter changes by utilizing molecular marker technology to transform the breeding process from phenotypic selection to genotypic selection. This changes the fundamental parameter of trait detection from observable characteristics to DNA-level markers, enabling simultaneous tracking of multiple desirable traits (disease resistance, drought tolerance, uniformity) through molecular assays rather than traditional multi-generational phenotypic observation
Solution Approach 2:
The patent replaces the mechanical system of traditional breeding (manual crossing, phenotypic observation, and selection) with a molecular-based system. Molecular markers serve as proxies for desirable traits, allowing breeders to identify and select plants with desired genetic combinations through laboratory analysis rather than field observation and manual selection processes
2Productivity
If traditional breeding methods are used, then the process follows conventional procedures, but the efficiency and speed of developing new varieties with multiple desirable traits are reduced
Solution Approach 1:
The patent applies preliminary action by pre-characterizing parental lines with molecular markers before the breeding program begins. This allows the breeder to know in advance which parental combinations will contribute desired traits to the offspring, enabling strategic crossing decisions that accelerate variety development and reduce the number of generations required to achieve target trait combinations
Solution Approach 2:
The patent implements feedback through molecular marker analysis that provides real-time information about the genetic composition of breeding populations. This feedback mechanism allows breeders to monitor the accumulation of desirable traits across generations and make informed selection decisions, significantly accelerating the breeding process compared to traditional methods that rely on delayed phenotypic observation
Data Source
AI summary
A novel maize variety designated PH13JF and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH13JF with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH13JF 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 PH13JF or a locus conversion of PH13JF with another maize variety.