Corn Variety CV856087 Breeding for Genetic Uniformity
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Solution Overview
Problem
Current corn breeding techniques face challenges in developing uniform corn hybrids with desirable traits such as high yield, disease resistance, and uniform germination due to genetic non-uniformity in cross-pollinated plants, which requires the development of stable inbred parental lines with specific characteristics.
Innovation Solution
The development of the corn variety CV856087, which includes a cytoplasmic or nuclear factor for male sterility or self-incompatibility, and the introduction of genetic loci for traits like herbicide tolerance, insect resistance, and modified metabolism, using backcrossing and genetic transformation techniques to create a homogeneous population of inbred seeds and plants with specific 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 unpredictability worsen
Solution Approach 1:
The breeding process is segmented into distinct phases: creating homozygous inbred lines through repeated self-pollination, then using these stable lines as parents for controlled crosses. This segmentation allows each phase to be optimized independently - selfing ensures uniformity while controlled crossing ensures desired trait combination.
Solution Approach 2:
Homozygous inbred plants are developed through preliminary self-pollination and selection before the actual crossing step. This preliminary action creates stable, uniform parent lines that will produce predictable hybrid offspring, eliminating the uncertainty of crossing genetically variable plants.
2Reliability
If self-pollination is used to create uniform inbred plants, then genetic uniformity is improved, but the ability to combine diverse traits worsens
Solution Approach 1:
The breeding program is divided into two functional segments: (1) development of homozygous inbred lines through self-pollination to achieve uniformity, and (2) crossing of these inbred lines to combine diverse traits. Each segment serves its specific purpose optimally.
Solution Approach 2:
The process creates multiple copies of desirable traits through repeated self-pollination and selection, producing homozygous inbred lines that are genetic copies with uniform traits. These uniform copies can then be crossed to combine different copied traits in new ways.
3Stability of the object's composition
If multiple generations of selfing and selection are performed to develop homozygous inbreds, then genetic stability is improved, but breeding time and complexity increase
Solution Approach 1:
The tedious process of repeated self-pollination and selection is performed as preliminary action to create homozygous inbred lines before the actual hybrid development. Once these stable inbreds are established, subsequent breeding work becomes much faster and more predictable, as only simple crosses are needed rather than multiple generations of selection.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV856087. The invention thus relates to the plants, seeds and tissue cultures of the variety CV856087, and to methods for producing a corn plant produced by crossing a corn plant of variety CV856087 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 CV856087 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 CV856087.