Hybrid Corn CH511458 Breeding via Segmentation and Preliminary Action
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Solution Overview
Problem
Current corn breeding techniques face challenges in developing uniform hybrid varieties with desirable traits such as high yield, disease resistance, and uniform germination due to genetic non-uniformity in cross-pollinated plants, which affects performance predictability.
Innovation Solution
The development of the hybrid corn variety CH511458, which incorporates a cytoplasmic or nuclear factor for male sterility and specific genetic loci conferring traits like herbicide resistance, disease resistance, and altered metabolism, along with tissue culture methods for regenerating plants with consistent physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to develop corn hybrids, then genetic diversity and trait combination are improved, but genetic uniformity and performance predictability deteriorate
Solution Approach 1:
The breeding process is segmented into distinct phases: first developing uniform inbred parental lines through self-pollination, then crossing them to produce hybrid offspring. This segmentation allows each phase to optimize for its specific goal - uniformity in parents, diversity in hybrids
Solution Approach 2:
Inbred parental lines are developed and stabilized through multiple generations of self-pollination before the cross-pollination step. This preliminary action ensures that when crossing occurs, the genetic composition is predetermined and uniform, leading to predictable hybrid performance
2Stability of the object's composition
If self-pollination is used to develop inbred lines, then genetic uniformity is improved, but genetic diversity and adaptability worsen
Solution Approach 1:
Self-pollination is used as a preliminary action to create uniform inbred parental lines before the actual hybridization. This preliminary uniformity enables predictable cross-pollination outcomes while the subsequent crossing restores genetic diversity
Solution Approach 2:
The breeding program segments the population into uniform inbred lines that serve as standardized building blocks. These segmented uniform units can be systematically crossed to generate diverse hybrid combinations with predictable performance
3Productivity
If male sterility factors are introduced to prevent self-pollination, then cross-pollination efficiency is improved, but genetic complexity increases
Solution Approach 1:
The plant's own genetic system is modified to serve the breeding program's needs. Male sterility genes make the plant self-sterile, automatically preventing self-pollination without external intervention, thereby simplifying hybrid seed production
Solution Approach 2:
The fertility parameter of the plant is changed from fertile to sterile through genetic modification. This parameter change fundamentally alters the pollination behavior, ensuring cross-pollination while the genetic mechanism is managed through established breeding protocols
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH511458. The invention thus relates to the plants, seeds and tissue cultures of the variety CH511458, and to methods for producing a corn plant produced by crossing a corn plant of variety CH511458 with itself or with another corn plant, such as a plant of another variety. The invention further relates to genetic complements of plants of variety CH511458.