Inbred Corn Line MN38 for Stable Hybrid Yield
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Solution Overview
Problem
The development of new corn inbred lines is hindered by the unpredictability of genetic traits due to environmental factors and the complexity of inheritance, leading to high research costs and lengthy breeding processes.
Innovation Solution
The introduction of the inbred corn line MN38, which is specifically adapted for the East, Central, South, and Western regions of the US Corn Belt, offering high yield potential and uniformity, along with methods for producing hybrid seeds and plants with desired traits through self-pollination, backcrossing, and genetic modification, such as transgenic approaches to confer traits like male sterility, herbicide resistance, and disease resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to develop new corn inbred lines, then genetic diversity and trait combinations can be achieved, but the process becomes time-consuming and unpredictable due to environmental factors and inheritance complexity
Solution Approach 1:
The patent applies preliminary action by developing inbred line MN38 with pre-established desirable traits through systematic breeding and selection processes. The line was developed over multiple generations with focused selection for yield, uniformity, and adaptability, allowing it to consistently perform across different environments without requiring lengthy additional breeding cycles.
Solution Approach 2:
The patent utilizes parameter changes by modifying key genetic parameters through controlled cross-breeding and selection. Specific traits such as ear height, plant height, maturity timing, and yield components were optimized by selecting parents with complementary parameters and evaluating progeny under controlled conditions to achieve the desired parameter combinations in MN38.
2Measurement precision
If extensive breeding and evaluation is performed to ensure trait superiority, then genetic worth can be accurately identified, but research costs increase significantly
Solution Approach 1:
The patent applies segmentation by dividing the breeding evaluation process into distinct stages: initial parental selection based on known performance, F1 hybrid evaluation for combining ability, and multi-location testing of advanced lines. This segmented approach allows resources to be focused on the most promising candidates at each stage, reducing overall research costs while maintaining evaluation accuracy.
Solution Approach 2:
The patent implements feedback mechanisms through systematic data collection and analysis from multi-location trials and hybrid performance evaluations. This feedback information is used to guide subsequent breeding decisions, allowing the program to identify superior lines more efficiently and allocate resources to the most promising genetic combinations.
3Reliability
If multiple locations and years are used to test breeding lines, then reliability of selection can be improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies universality by developing inbred line MN38 with broad adaptability across multiple Corn Belt regions. The line was tested and selected for performance in diverse environments, allowing it to serve as a versatile parent for hybrid development in multiple geographic zones, thereby reducing the need for separate region-specific breeding programs.
Solution Approach 2:
The patent utilizes homogeneity by selecting for uniform plant characteristics within the inbred line, including consistent ear height, plant height, maturity timing, and other key traits. This uniformity reduces environmental variability effects in trials and simplifies the evaluation process across multiple locations and years.
Data Source
AI summary
Inbred corn line, designated MN38, are disclosed. The invention relates to the seeds of inbred corn line MN38, to the plants and plant parts of inbred corn line MN38 and to methods for producing a corn plant, either inbred or hybrid, by crossing inbred corn line MN38 with itself or another corn line. The invention also relates to products produced from the seeds, plants, or parts thereof, of inbred corn line MN38 and/or of the hybrids produced using the inbred as a parent. The invention further relates to methods for producing a corn plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other corn lines derived from inbred corn line MN38.