Inbred Corn Line BB33 Diharaploid Breeding Yield
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The development of new corn inbred lines is a time-consuming and unpredictable process due to the complexity of inheritance and environmental factors, making it challenging to identify genetically superior plants with desirable traits such as high yield, disease resistance, and adaptability.
Innovation Solution
The introduction of the inbred corn line BB33, which is a yellow dent corn with superior characteristics, adapted for the East, Central, and Western regions of the US Corn Belt, and can be used to produce hybrids with improved yield, disease resistance, and adaptability through pedigree breeding and genetic modification techniques, including the use of transgenes for traits like male sterility, herbicide resistance, and drought tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional breeding procedures are used to develop new corn inbred lines, then genetic diversity and adaptability are maintained, but the process is time-consuming and unpredictable taking 8-12 years
Solution Approach 1:
The patent applies preliminary action by using dihaploid breeding techniques to create inbred lines in a single generation rather than requiring multiple generations of self-pollination and selection. This preliminary creation of genetically stable lines dramatically reduces the 8-12 year development period while maintaining reliability through controlled chromosomal doubling and homozygosity.
Solution Approach 2:
The patent replaces conventional mechanical breeding procedures (multiple generations of manual pollination and selection) with a biological mechanism-based approach using dihaploid induction and chromosome doubling. This substitution transforms the breeding process from a time-consuming mechanical selection process to a more efficient biological transformation process.
2Measurement precision
If replicated observations are made to identify superior plants, then measurement precision of genetic worth is improved, but the complexity and resource expenditure increase
Solution Approach 1:
The patent applies copying by creating multiple dihaploid inbred lines from a single F1 hybrid through chromosome doubling. This produces genetic copies that are identical to the original F1 hybrid's genetic composition, allowing precise evaluation of genetic worth without requiring multiple replicated observations of different plants. The copies provide exact genetic replicates for accurate measurement.
Solution Approach 2:
The patent changes the parameter of genetic composition from heterogeneous (requiring replicated observations) to homogeneous (single generation dihaploids). By transforming the breeding material into dihaploid inbreds with fixed, known genetic compositions, the measurement precision of genetic worth is achieved without increasing evaluation complexity, as the genetic parameters are already predetermined and controlled.
3Productivity
If dihaploid breeding method is used to generate genetic combinations, then productivity of inbred line development is improved, but the complexity of inheritance and environmental factors remains
Solution Approach 1:
The patent applies segmentation by separating the breeding process into distinct manageable stages: F1 hybrid production, dihaploid induction, and chromosome doubling. This segmentation allows each stage to be optimized independently, increasing productivity while managing complexity through structured process division rather than attempting to control all inheritance factors simultaneously.
Data Source
AI summary
An inbred corn line, designated BB33, is disclosed. The invention relates to the seeds of inbred corn line BB33, to the plants and plant parts of inbred corn line BB33 and to methods for producing a corn plant, either inbred or hybrid, by crossing inbred corn line BB33 with itself or another corn line. 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 inbred corn lines derived from inbred corn line BB33.