Inbred Corn Line 7MMSM2008 Breeding Stability
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Solution Overview
Problem
The development of new inbred corn plants is a slow and costly process that requires expertise, and existing inbred corn lines lose commercial competitiveness over time, necessitating the creation of improved germplasm with enhanced yield, disease resistance, and trait technologies to maintain competitiveness.
Innovation Solution
The introduction of the inbred corn line 7MMSM2008, which is a yellow dent inbred corn line with specific physiological and morphological characteristics, along with methods for producing and breeding corn plants using techniques such as self-pollination, sib-pollination, backcrossing, haploid breeding, and tissue culture to create stable and high-yielding corn varieties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional inbreeding techniques are used to develop new inbred corn lines, then genetic uniformity and homozygosity are achieved, but the process is slow and costly
Solution Approach 1:
The patent applies preliminary action by using molecular marker technology to predict hybrid performance early in the breeding process. Instead of waiting for multi-generation field trials, breeders can screen inbred lines for desirable combining ability using DNA markers, allowing early selection of superior lines and significantly reducing the time required to develop new inbred corn lines while maintaining genetic uniformity through targeted selection.
2Ease of manufacture
If existing inbred corn lines are used repeatedly, then breeding costs are reduced, but commercial competitiveness is lost over time
Solution Approach 1:
The patent applies parameter changes by utilizing molecular marker data to identify and exploit genetic variation parameters within and between inbred lines. By analyzing specific DNA markers associated with yield, disease resistance, and other agronomic traits, breeders can discover novel genetic combinations and improve upon existing lines, thereby maintaining commercial competitiveness while managing breeding costs through efficient resource allocation to the most promising genetic parameters.
3Reliability
If multiple breeding techniques are employed to create improved germplasm, then yield and disease resistance are enhanced, but process complexity increases
Solution Approach 1:
The patent applies feedback by using molecular marker information to guide and adjust breeding decisions throughout the process. Marker data provides continuous feedback on the genetic composition and predicted performance of breeding populations, allowing breeders to make informed decisions about which lines to advance, cross, or discard. This feedback mechanism streamlines the breeding process by eliminating unnecessary steps and focusing resources on combinations most likely to achieve enhanced disease resistance and yield.
Data Source
AI summary
An inbred corn line, designated 7MMSM2008, the plants and seeds of the inbred corn line 7MMSM2008, methods for producing a corn plant, either inbred or hybrid, produced by crossing the inbred corn line 7MMSM2008 with itself or with another corn plant, and hybrid corn seeds and plants produced by crossing the inbred line 7MMSM2008 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 7MMSM2008, to methods for producing other inbred corn lines derived from inbred corn line 7MMSM2008 and to the inbred corn lines derived by the use of those methods.