Corn Variety CV427371 Homogeneous Inbred Lines
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Solution Overview
Problem
Corn breeding techniques face challenges in developing uniform corn hybrids with desirable traits such as high yield, disease resistance, and uniformity, as existing methods often result in unpredictable performance due to genetic non-uniformity among hybrid plants.
Innovation Solution
The development of the corn variety CV427371, which includes specific physiological and morphological characteristics, and the use of cytoplasmic or nuclear factors for male sterility to prevent self-pollination, along with genetic loci that confer traits like herbicide tolerance and disease resistance, allowing for the production of homogeneous inbred seeds and plants with desired traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to develop corn hybrids, then various desirable traits can be combined in a single variety, but genetic non-uniformity among hybrid plants results in unpredictable performance
Solution Approach 1:
The patent applies homogeneity by developing highly inbred parental lines that are genetically uniform and homozygous. This ensures that all hybrid plants produced from these parental lines have identical genetics, eliminating the non-uniformity that causes unpredictable performance while maintaining the ability to combine multiple desirable traits through selective breeding of the parental lines.
2Stability of the object's composition
If self-pollination is allowed in corn breeding, then homozygous inbred plants can be developed, but uniformity in the population decreases due to genetic segregation
Solution Approach 1:
The patent applies preliminary action by performing multiple generations of self-pollination and selection before the final hybridization step. This preliminary inbreeding process establishes homozygous parental lines with uniform genetics, so that when these lines are crossed, the resulting hybrids maintain uniformity without further segregation.
3Productivity
If cross-pollination is used to produce hybrid plants, then heterosis and improved performance can be achieved, but genetic diversity in the population increases leading to non-uniformity
Solution Approach 1:
The patent resolves this contradiction by ensuring that both parental lines used in cross-pollination are highly homozygous and genetically uniform through multiple generations of inbreeding. This way, the F1 hybrid plants all receive identical genetic combinations, maintaining uniformity while still achieving heterosis from the cross between two different homozygous lines.
4Reliability
If extensive breeding programs are conducted to develop superior inbred lines, then desirable characteristics can be achieved, but time and resources required for selection and evaluation increase
Solution Approach 1:
The patent applies preliminary action by conducting multiple generations of systematic inbreeding, selection, and evaluation before final hybridization. This thorough preliminary work ensures high-quality inbred lines with desired traits are established early, preventing the need for extensive later modifications and reducing overall program time.
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV427371. The invention thus relates to the plants, seeds and tissue cultures of the variety CV427371, and to methods for producing a corn plant produced by crossing a corn plant of variety CV427371 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 CV427371 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 CV427371.