Hybrid Corn CH105778 Segmentation and Merging for Uniformity
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Solution Overview
Problem
Current corn breeding methods face challenges in developing uniform hybrid plants with desirable traits such as high yield, disease resistance, and uniform germination, as they often result in non-uniform and unpredictable performance due to genetic differences between cross-pollinated plants.
Innovation Solution
The development of the hybrid corn variety CH105778, which incorporates a cytoplasmic or nuclear factor for male sterility and introduces desired traits like herbicide resistance, insect resistance, and disease resistance through genetic loci, allowing for controlled pollination and stable inheritance of desirable characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If natural cross-pollination is used in corn breeding, then genetic diversity is increased, but uniformity of hybrid plants deteriorates
Solution Approach 1:
The breeding population is divided into separate male and female parent lines that are independently developed and maintained. By segmenting the breeding process into distinct parental lines with specific genetic compositions, the invention achieves both genetic diversity through their cross-pollination and uniformity within each parental line, resolving the contradiction between genetic diversity and plant uniformity.
2Stability of the object's composition
If self-pollination is used to develop homozygous inbred plants, then uniformity of parental lines is improved, but genetic diversity deteriorates
Solution Approach 1:
The invention merges two distinct homozygous inbred lines (male and female parents) through controlled cross-pollination to create the hybrid variety. Each parental line maintains high uniformity through self-pollination, while their combination in the hybrid restores genetic diversity and produces the desired uniform hybrid population with heterosis, resolving the contradiction between parental line uniformity and genetic diversity.
3Reliability
If multiple breeding generations are used to develop superior inbreds, then desired traits are improved, but breeding time increases
Solution Approach 1:
The male and female parental inbred lines are developed and stabilized in advance through multiple generations of self-pollination and selection before the final hybrid cross. This preliminary development of uniform parental lines with desired traits allows the hybrid production to proceed efficiently without requiring additional generational development time, resolving the contradiction between trait improvement and breeding time.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH105778. The invention thus relates to the plants, seeds and tissue cultures of the variety CH105778, and to methods for producing a corn plant produced by crossing a corn plant of variety CH105778 with itself or with another corn plant, such as a plant of another variety. The invention further relates to genetic complements of plants of variety CH105778.