CV105053 Corn Breeding Segmentation for Predictable Hybrid Traits
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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 CV105053, 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 to combine desirable traits from different plants, then genetic diversity and trait combination are improved, but genetic non-uniformity and unpredictable performance occur
Solution Approach 1:
The breeding process is divided into distinct phases: creating diverse F1 hybrids through cross-pollination, then self-pollinating to generate uniform F2 inbred lines. This segmentation allows the system to first achieve genetic diversity for trait combination, then achieve uniformity for predictable performance through repeated selfing and selection.
Solution Approach 2:
The patent performs preliminary cross-pollination to create F1 hybrids with desirable traits before self-pollinating to generate uniform F2 progeny. This preliminary action establishes the genetic diversity needed for trait combination, and subsequent selfing refines the population to achieve uniformity and predictability.
2Reliability
If self-pollination is used to create uniform inbred plants, then genetic uniformity and breeding stability are improved, but loss of genetic diversity and limited trait combination occur
Solution Approach 1:
The breeding program segments the process into two stages: initial cross-pollination between diverse parents to create F1 hybrids with desired traits, followed by self-pollination to generate uniform F2 inbred lines. This segmentation allows the system to achieve both diversity in the F1 generation and uniformity in the F2 generation.
Solution Approach 2:
The patent performs preliminary cross-pollination to create genetically diverse F1 hybrids before self-pollinating to produce uniform F2 progeny. This preliminary cross-pollination step introduces and combines desirable traits from different parents, while subsequent selfing establishes genetic uniformity and breeding stability.
3Manufacturing precision
If multiple generations of selfing are performed to achieve homozygosity, then uniformity of true-breeding progeny is improved, but time consumption and breeding complexity increase
Solution Approach 1:
The patent performs preliminary cross-pollination to create F1 hybrids, then self-pollinates to generate F2 progeny that are already substantially uniform and true-breeding. This preliminary cross-pollination step sets up the genetic architecture that allows for rapid achievement of homozygosity in the F2 generation, reducing the time needed compared to traditional multi-generation selfing.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV105053. The invention thus relates to the plants, seeds and tissue cultures of the variety CV105053, and to methods for producing a corn plant produced by crossing a corn plant of variety CV105053 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 CV105053 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 CV105053.