Hybrid Corn CH110135 Breeding Segmentation
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Solution Overview
Problem
Corn breeding techniques face challenges in developing uniform hybrid plants with desirable traits such as high yield, disease resistance, and uniform germination due to genetic non-uniformity and unpredictability in cross-pollination, requiring the development of stable inbred plants and methods to prevent self-pollination.
Innovation Solution
The development of the hybrid corn variety CH110135, which includes genetic loci for traits like male sterility, herbicide resistance, and disease resistance, and utilizes cytoplasmically-inherited traits and transgenes to ensure uniformity and desirable characteristics, along with a process for crossing plants to produce hybrid seeds that prevent self-pollination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cross-pollination is used to develop corn hybrids, then genetic diversity and desirable traits can be combined, but genetic non-uniformity and unpredictability occur in the resulting plants
Solution Approach 1:
The breeding process is segmented into distinct phases: first developing homozygous inbred parent lines through self-pollination to ensure genetic uniformity, then crossing these standardized inbreds to produce uniform hybrid progeny. This segmentation allows genetic diversity to be introduced only at the controlled crossing stage while maintaining uniformity within each phase.
Solution Approach 2:
Homozygous inbred parent plants are developed and standardized before the hybrid crossing step. This preliminary action of creating genetically uniform inbreds through generations of self-pollination ensures that when crossing occurs, the resulting hybrids exhibit predictable and uniform performance, resolving the unpredictability issue.
2Stability of the object's composition
If self-pollination is used to develop inbred plants, then genetic uniformity and stability are achieved, but ability to combine desirable traits from different plants is limited
Solution Approach 1:
The breeding program is divided into separate inbred line development phases (using self-pollination for uniformity) and a hybridization phase (using cross-pollination for trait combination). This segmentation allows each method to be applied where it is most effective: selfing for stability, crossing for diversity.
Solution Approach 2:
Homozygous inbred lines serve as intermediaries that capture and stabilize desirable traits from various genetic sources. These standardized inbreds then serve as controlled parents for hybrid crosses, enabling systematic combination of traits while maintaining predictability through the use of uniform parental genotypes.
3Stability of the object's composition
If male sterility is introduced to prevent self-pollination, then hybrid uniformity is improved, but device complexity increases due to additional genetic factors
Solution Approach 1:
The male fertility function is extracted and disabled in the female parent through male sterility genes or cytoplasmic male sterility. This removal of the self-pollination capability simplifies the breeding system by eliminating the need for manual emasculation while ensuring complete dependence on cross-pollination for seed production, thereby improving hybrid uniformity.
Data Source
AI summary
According to the invention, there is provided seed and plants of the hybrid corn variety designated CH110135. The invention thus relates to the plants, seeds and tissue cultures of the variety CH110135, and to methods for producing a corn plant produced by crossing a corn plant of variety CH110135 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 CH110135.