Corn Variety CV334995 Breeding for 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 the unpredictability of genetic diversity in cross-pollinated plants, which requires the development of stable inbred plants and precise breeding methods.
Innovation Solution
The development of the corn variety CV334995, which includes a cytoplasmic or nuclear factor for male sterility to prevent self-pollination, along with specific genetic loci for traits like herbicide tolerance, insect resistance, and modified metabolism, 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 increase genetic diversity, then genetic variability is improved, but uniformity of the crop population deteriorates
Solution Approach 1:
The breeding program segments the population into distinct inbred lines that are genetically homogeneous within each line but genetically diverse between lines. This allows maintenance of genetic diversity through multiple inbred lines while ensuring uniformity within each line for predictable performance
Solution Approach 2:
The patent changes the genetic parameter from heterogeneous cross-pollinated populations to homogeneous inbred lines through repeated self-pollination. This parameter change achieves uniformity within lines while the collection of diverse inbred lines maintains overall genetic diversity for breeding programs
2Stability of the object's composition
If self-pollination is used to develop uniform inbred lines, then uniformity of the crop population is improved, but genetic diversity deteriorates
Solution Approach 1:
The breeding program segments the overall genetic diversity into multiple distinct inbred lines, each obtained through self-pollination. This segmentation maintains uniformity within each line while preserving genetic diversity across the collection of lines for future breeding combinations
Solution Approach 2:
Repeated self-pollination creates precise genetic copies (clones) of the parental genotype, ensuring uniformity of inbred lines. This copying process fixes the genetic composition while multiple different copies (inbred lines) maintain overall genetic diversity
3Adaptability or versatility
If multiple breeding methods are used to combine desirable traits, then the number of desirable traits is improved, but breeding complexity deteriorates
Solution Approach 1:
The patent merges multiple breeding methods (pedigree breeding, recurrent selection, single seed descent) into a unified breeding program framework. This integration allows combination of desirable traits from different sources while managing complexity through systematic procedures
Solution Approach 2:
The breeding program uses universal inbred lines that can serve multiple functions: as parental lines for hybrid production, as sources of specific traits, and as maintaining lines for cytoplasmic male sterility systems. This multi-functionality reduces overall program complexity
Data Source
AI summary
According to the invention, there is provided seed and plants of the corn variety designated CV334995. The invention thus relates to the plants, seeds and tissue cultures of the variety CV334995, and to methods for producing a corn plant produced by crossing a corn plant of variety CV334995 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 CV334995 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 CV334995.