Hybrid Corn CH311019 Cytoplasmic Male Sterility Seed Production
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current corn breeding techniques face challenges in developing hybrid varieties that combine desirable traits such as high yield, disease resistance, and uniformity, while maintaining genetic stability and avoiding self-pollination, which limits the efficiency of hybrid seed production.
Innovation Solution
The development of the hybrid corn variety CH311019, which incorporates cytoplasmic or nuclear factors for male sterility and specific genetic loci conferring traits like herbicide resistance and disease resistance, along with tissue culture methods for regenerating plants with consistent physiological and morphological characteristics, enables controlled cross-pollination and stable hybrid seed production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical emasculation is used to prevent self-pollination, then cross-pollination control is improved, but labor intensity and production cost increase
Solution Approach 1:
The patent employs cytoplasmic male sterility (CMS) systems where the female parent plant automatically prevents self-pollination through genetic mechanisms. The sterile cytoplasm inherently blocks pollen development, eliminating the need for manual emasculation operations while ensuring reliable cross-pollination control in hybrid seed production
Solution Approach 2:
The patent replaces mechanical emasculation operations with biological genetic mechanisms. By introducing cytoplasmic sterility factors or nuclear gene controls, the system substitutes manual physical intervention with automated genetic control, where the plant's own genetic programming prevents self-pollination without human intervention
2Adaptability or versatility
If multiple desirable traits are combined in hybrid corn, then agronomic quality is improved, but genetic stability becomes more difficult to maintain
Solution Approach 1:
The patent divides the complex genetic inheritance into separate parental lines, each contributing specific desirable traits. By segmenting the genetic contribution from two distinct inbred parents, the hybrid maintains stable inheritance patterns while combining multiple agronomically valuable characteristics such as disease resistance, yield potential, and stress tolerance
Solution Approach 2:
The patent creates a composite genetic structure by combining genomes from two different inbred parental lines. This composite hybrid genome integrates multiple desirable traits while maintaining stability through the heterozygous state, where complementary genes from each parent work together to produce uniform and stable hybrid performance
3Stability of the object's composition
If inbred plants are developed through repeated selfing, then genetic uniformity is improved, but inbreeding depression reduces plant vigor
Solution Approach 1:
The patent merges two different inbred lines with complementary genetic backgrounds to produce the hybrid. This combination restores heterosis (hybrid vigor) while maintaining the genetic uniformity benefits of inbreeding, as each parental line contributes stable, uniform genetics that complement rather than depress plant vigor when combined
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH311019. The invention thus relates to the plants, seeds and tissue cultures of the variety CH311019, and to methods for producing a corn plant produced by crossing a corn plant of variety CH311019 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 CH311019.