CV000902 Corn Variety Breeding via Segmentation and Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Corn breeding aims to combine desirable traits like yield, disease resistance, and uniformity, but existing methods struggle to develop stable inbred plants with predictable performance due to genetic non-uniformity from cross-pollination, leading to unpredictable hybrid traits.
Innovation Solution
The development of the corn variety CV000902, which includes a cytoplasmic or nuclear factor for male sterility to prevent self-pollination, along with specific genetic loci for traits like herbicide tolerance and disease resistance, and the use of tissue cultures to regenerate plants with consistent physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used in corn breeding, then genetic diversity is increased, but genetic uniformity is reduced leading to unpredictable hybrid traits
Solution Approach 1:
The breeding population is divided into separate inbred lines that are homozygous at almost all gene loci. Each inbred line is genetically uniform and stable, but when crossed with another inbred line, they produce hybrid offspring with desired genetic diversity while maintaining predictability because the parental lines are uniform.
Solution Approach 2:
Before performing cross-pollination to create hybrids, the parental lines are first developed through multiple generations of self-pollination and selection to achieve homozygosity and genetic uniformity. This preliminary action ensures that when crossing occurs, the resulting hybrids will have predictable and uniform traits.
2Stability of the object's composition
If self-pollination is used to develop inbred plants, then genetic uniformity is improved, but time to achieve stable lines is increased
Solution Approach 1:
During the self-pollination process to develop inbred lines, continuous phenotypic selection is applied. Plants with desired traits are selected and their seeds are saved for the next generation of self-pollination. This feedback loop accelerates the development of uniform inbred lines by eliminating unwanted genetic variation more rapidly than simple self-pollination would achieve.
3Reliability
If multiple desirable traits are combined in breeding, then overall plant performance is improved, but breeding complexity is increased
Solution Approach 1:
Multiple desirable traits from different inbred lines are combined through controlled cross-pollination. Each parental inbred line contributes specific desired traits, and the hybrid offspring inherits a combination of these traits, achieving superior overall plant performance by merging the strengths of different lines.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV000902. The invention thus relates to the plants, seeds and tissue cultures of the variety CV000902, and to methods for producing a corn plant produced by crossing a corn plant of variety CV000902 with itself or with another corn plant, such as a plant of another variety. The invention further relates to corn seeds and plants produced by crossing plants of variety CV000902 with plants of another variety, such as another inbred line. The invention further relates to the inbred and hybrid genetic complements of plants of variety CV000902.