Maize Inbred 1PLFT32 for Stable Disease-Resistant Hybrid Seed
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Solution Overview
Problem
The development of new maize varieties is a time-consuming process that requires years to combine desirable traits such as disease resistance, drought tolerance, and high yield, posing challenges in efficiently producing stable and agronomically sound maize varieties.
Innovation Solution
The development of the novel maize variety 1PLFT32, which incorporates traits like male sterility, disease resistance, and drought tolerance through backcross conversion, genetic manipulation, and transformation, along with the introduction of heritable traits and cytoplasmically-inherited characteristics, enabling the production of hybrid maize seeds with improved agronomic characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding methods are used to combine desirable traits, then the resulting varieties have stable and agronomically sound characteristics, but the development process takes six to twelve years which is excessively time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-establishing inbred lines with specific desirable traits (such as disease resistance, drought tolerance, and male sterility) before the actual hybridization process. The inbred line 1PLFT32 is developed with predetermined characteristics including CMS (cytoplasmic male sterility) and resistance to multiple diseases, allowing the hybridization step to directly produce high-performing F1 hybrids without requiring extensive field testing and selection over multiple years. This pre-preparation of genetically optimized parent lines dramatically reduces the overall breeding timeline while maintaining variety stability.
2Adaptability or versatility
If multiple desirable traits are combined in a single maize variety through traditional breeding, then the variety achieves high yield and agronomic soundness, but the complexity of the breeding program increases significantly
Solution Approach 1:
The patent merges multiple desirable traits into a single integrated inbred line (1PLFT32) that simultaneously possesses CMS (cytoplasmic male sterility), disease resistance (to multiple pathogens including Northern Corn Leaf Blight, Gray Leaf Spot, and Anthracnose), and drought tolerance. By consolidating these traits into one pre-developed parent line rather than attempting to combine them through multiple sequential crosses, the breeding program complexity is reduced. The merged trait package in 1PLFT32 can be directly crossed with other inbreds to produce hybrids that inherit all these benefits simultaneously.
Solution Approach 2:
The inbred line 1PLFT32 serves multiple functions: it acts as a male-sterile parent for hybrid seed production, provides disease resistance to multiple pathogens, confers drought tolerance, and contributes to high yield potential in resulting hybrids. This multi-functionality reduces the need for separate breeding programs for each trait, as a single inbred line accomplishes what would traditionally require multiple specialized parent lines and complex crossing schemes.
3Stability of the object's composition
If traditional crossing and selection methods are used to introduce new traits, then the traits are stably inherited, but the process requires repeated backcrossing and selection over multiple generations which reduces productivity
Solution Approach 1:
The patent applies preliminary action by performing the extensive backcrossing and selection work in advance to develop the inbred line 1PLFT32 with all desired traits already stabilized. The inbred line is developed through predetermined generations of breeding and selection (including self-pollination and backcrossing) before being used for hybrid production. This preliminary stabilization of traits in the parent line ensures that when F1 hybrids are produced, they immediately inherit the desired traits without requiring further generations of selection, thereby dramatically increasing breeding productivity while maintaining trait heritability.
Data Source
AI summary
A novel maize variety designated 1PLFT32 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PLFT32 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PLFT32 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety 1PLFT32 or a locus conversion of 1PLFT32 with another maize variety.