Inbred Corn Line D096197 Breeding Program
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Solution Overview
Problem
The development of new inbred corn lines is a slow and costly process, requiring expertise and numerous steps, and existing inbred parent corn lines lose commercial competitiveness over time, necessitating the need for improved germplasm with enhanced yield, disease resistance, and trait technologies.
Innovation Solution
The introduction of the inbred corn line D096197, which is a new yellow dent inbred corn line with specific physiological and morphological characteristics, and methods for producing and breeding corn plants using techniques such as self-pollination, sib-pollination, and tissue culture to create uniform and stable inbred and hybrid corn plants, along with the use of transgenic approaches to introduce desired traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional inbreeding techniques (self-pollination and sib-pollination) are used to develop new inbred corn lines, then genetic uniformity and stability are achieved, but the breeding process becomes slow and costly
Solution Approach 1:
The patent applies preliminary action by establishing a structured multi-generation inbreeding program where parental lines are selected and prepared in advance with known desirable traits. The systematic approach pre-plans crossing schemes and selection criteria for each generation (P1, P2, P3, P4, P5, P6), allowing the breeding process to proceed efficiently without ad-hoc decisions, thus reducing overall breeding time while maintaining genetic stability.
2Stability of the object's composition
If extensive inbreeding is performed to develop new inbred lines, then genetic stability is improved, but the vigor of the lines decreases
Solution Approach 1:
The patent applies dynamics by implementing a dynamic inbreeding strategy where the degree and method of inbreeding are adjusted across different generations. The program transitions from intensive inbreeding in early generations (P1-P3) to more moderate approaches in later generations (P4-P6), with selective crossing and evaluation at each stage. This dynamic approach maintains genetic stability while preserving plant vigor by avoiding excessive inbreeding depression.
3Productivity
If existing inbred parent corn lines are used repeatedly, then breeding efficiency is maintained, but they lose commercial competitiveness over time
Solution Approach 1:
The patent applies segmentation by dividing the breeding program into distinct modular generations (P1 through P6), each with specific objectives and selection criteria. This segmented approach allows different parental lines to be developed independently with specialized traits, then combined in systematic crosses. The modular structure enables continuous development of new line combinations, preventing reliance on exhausted parental lines and maintaining commercial competitiveness while preserving breeding efficiency.
Data Source
AI summary
An inbred corn line, designated D096197, the plants and seeds of the inbred corn line D096197, methods for producing a corn plant, either inbred or hybrid, produced by crossing the inbred corn line D096197 with itself or with another corn plant, and hybrid corn seeds and plants produced by crossing the inbred line D096197 with another corn line or plant and to methods for producing a corn plant containing in its genetic material one or more transgenes and to the transgenic corn plants produced by that method. This invention also relates to inbred corn lines derived from inbred corn line D096197, to methods for producing other inbred corn lines derived from inbred corn line D096197 and to the inbred corn lines derived by the use of those methods.