Maize Inbred PH18G6 Trait Integration via Segmentation
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Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and uniformity, which are essential for efficient crop production and yield improvement.
Innovation Solution
The development of the maize variety PH18G6, which is a novel inbred line with specific traits introgressed through backcross conversion and transformation, combining resistance to various stresses and pests, and optimized for hybrid seed production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding is used to combine desirable traits, then disease resistance and drought tolerance can be achieved, but the time to crop maturity increases and uniformity of plant characteristics deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-selecting and pre-combining desirable traits (disease resistance, drought tolerance, uniformity) in the development of inbred line PH18G6 through systematic breeding programs. The inbred line has been预先 developed with specific genetic characteristics that will be introduced into hybrids, eliminating the need for time-consuming field selection and trait combination in later stages.
2Reliability
If traditional plant breeding is used to combine desirable traits, then drought tolerance can be achieved, but uniformity of plant characteristics deteriorates
Solution Approach 1:
The patent applies local quality by introducing specific localized genetic traits into the hybrid maize through the PH18G6 inbred line. The inbred line carries specific alleles for drought tolerance and uniformity that are concentrated in particular genetic regions, allowing these desirable traits to be precisely introduced without affecting other plant characteristics.
Solution Approach 2:
The patent applies parameter changes by modifying genetic parameters through controlled breeding to achieve optimal uniformity. The inbred line PH18G6 has been developed with specific genetic parameters (homozygosity levels, allele frequencies) that when introduced into hybrids, produce uniform plant characteristics while maintaining drought tolerance.
3Reliability
If multiple desirable traits are combined in a single variety, then resistance to diseases and insects and drought resistance are improved, but device complexity of the breeding program increases
Solution Approach 1:
The patent applies segmentation by dividing the complex task of combining multiple traits into manageable segments. Instead of attempting to combine all desirable traits (disease resistance, insect resistance, drought tolerance, uniformity) in a single complex breeding program, the invention segments the process by developing a specialized inbred line (PH18G6) that carries specific combinations of traits, which can then be systematically introduced into multiple hybrid varieties.
4Stability of the object's composition
If uniformity of plant characteristics is improved for mechanical harvesting, then germination and stand establishment uniformity are improved, but genetic diversity decreases
Solution Approach 1:
The patent applies local quality by introducing specific localized genetic traits into the hybrid maize through the PH18G6 inbred line. The inbred line carries specific alleles for drought tolerance and uniformity that are concentrated in particular genetic regions, allowing these desirable traits to be precisely introduced without affecting other plant characteristics.
Data Source
AI summary
A novel maize variety designated PH18G6 and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH18G6 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH18G6 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PH18G6 or a locus conversion of PH18G6 with another maize variety.