Corn Variety CV833052 Breeding for Predictable Hybrid Performance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Corn breeding aims to combine desirable traits like higher yield, disease resistance, and uniformity, but existing methods face challenges in developing stable inbred plants with predictable performance due to genetic non-uniformity and the need for extensive selection processes.
Innovation Solution
The development of the corn variety CV833052, which includes a cytoplasmic or nuclear factor for male sterility and genetic modifications such as herbicide tolerance, insect resistance, and modified metabolic traits, along with tissue culture techniques for regenerating plants with consistent morphological and physiological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional breeding methods are used to develop inbred plants, then genetic diversity is maintained, but uniformity and predictability of hybrid performance are reduced
Solution Approach 1:
The breeding process is segmented into distinct stages: developing homozygous inbred parental lines through self-pollination, then crossing these standardized inbreds to produce uniform hybrids. This segmentation allows each stage to be optimized independently, ensuring genetic uniformity in the final hybrid product.
Solution Approach 2:
The patent applies parameter changes by controlling pollination parameters - specifically enforcing self-pollination for multiple generations to achieve homozygosity, then switching to controlled cross-pollination between specific inbred lines. This parameter control transforms the breeding outcome from variable to predictable and uniform.
2Stability of the object's composition
If self-pollination is used to develop homozygous inbred plants, then uniformity of progeny is improved, but the breeding time and selection processes are extended
Solution Approach 1:
Homozygous inbred parental lines are developed and standardized in advance before hybrid production. This preliminary action of creating stable, uniform inbreds through multi-generation self-pollination ensures that subsequent hybrid crosses will produce consistent, predictable results, reducing the need for extensive selection later.
Solution Approach 2:
The breeding program maintains continuous production of inbred lines through systematic self-pollination and selection across multiple generations. This continuous process ensures a steady supply of uniform parental material, making the overall breeding operation more efficient despite the time required for homozygosity achievement.
3Adaptability or versatility
If cross-pollination between heterozygous plants is performed, then genetic variation is increased, but uniformity of the hybrid population is reduced
Solution Approach 1:
The patent applies local quality by ensuring that each parental inbred line contributes a specific, standardized genetic composition to the hybrid. The heterozygosity is localized to specific gene loci from each parent, while the overall hybrid population maintains uniformity because both parents are homozygous and genetically stable at all other loci.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV833052. The invention thus relates to the plants, seeds and tissue cultures of the variety CV833052, and to methods for producing a corn plant produced by crossing a corn plant of variety CV833052 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 CV833052 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 CV833052.