Corn Variety CV335662 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 uniformity, as they often result in unpredictable performance due to genetic non-uniformity among hybrid plants.
Innovation Solution
The development of the corn variety CV335662, which includes methods for producing inbred corn plants with specific traits like male sterility, herbicide tolerance, and disease resistance, using cytoplasmic-male sterility and genetic transformation techniques to ensure uniformity and stability, along with processes for crossing parent plants to produce hybrid seeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional corn breeding techniques are used to develop hybrids, then various desirable traits can be combined, but genetic non-uniformity results in unpredictable performance
Solution Approach 1:
The patent applies homogeneity by developing highly inbred parental lines (at least 95% homozygous) to ensure uniform genetic composition. This creates homogeneous F1 hybrid progeny that all express the same desirable traits with predictable performance, eliminating the genetic non-uniformity problem of conventional breeding
2Stability of the object's composition
If self-pollination is used to develop uniform inbred plants, then genetic uniformity is achieved, but time to develop stable lines increases
Solution Approach 1:
The patent applies preliminary action by pre-developing highly inbred, homozygous parental lines before hybridization. This preliminary inbreeding ensures that when crossing occurs, the F1 progeny immediately exhibit uniformity and stability without requiring additional generations of inbreeding, thus reducing overall breeding time
3Productivity
If cross-pollination is used to produce hybrid plants, then genetic diversity and yield potential increase, but non-uniformity among plants results
Solution Approach 1:
The patent resolves this contradiction by using highly homozygous parental lines (at least 95% homozygosity) as parents. When these uniform parents cross-pollinate, the F1 hybrid progeny receive identical alleles from each parent, resulting in uniform hybrids that express consistent desirable traits while maintaining the productivity benefits of cross-pollination
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV335662. The invention thus relates to the plants, seeds and tissue cultures of the variety CV335662, and to methods for producing a corn plant produced by crossing a corn plant of variety CV335662 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 CV335662 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 CV335662.