Maize Inbred PH1KH4 Trait Combination 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 mechanical harvesting.
Innovation Solution
Development of a novel maize variety, PH1KH4, with specific breeding processes and genetic modifications to enhance traits like abiotic stress tolerance, disease resistance, and uniformity, achieved through backcross conversion and transformation methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding methods are used to combine desirable traits, then multiple traits can be combined in a single variety, but the breeding process is time-consuming and results in loss of time
Solution Approach 1:
The patent creates an inbred maize variety (PH1KH4) that has been pre-selected and developed with specific desirable traits including abiotic stress tolerance, disease resistance, and uniformity. This preliminary development of a standardized inbred line with multiple pre-combined traits allows for faster subsequent hybrid production without repeating the entire breeding process, thus reducing time loss while maintaining trait combination capability.
2Adaptability or versatility
If traditional breeding is used to develop new varieties, then genetic diversity can be achieved, but uniformity of plant characteristics is reduced
Solution Approach 1:
The patent segments the breeding process into two distinct phases: first, developing a highly uniform inbred line (PH1KH4) through extensive selfing and selection to achieve genetic homogeneity and uniformity of plant characteristics; second, crossing this standardized inbred line with other varieties to introduce genetic diversity. This segmentation allows the inbred parent to provide uniformity while the hybridization step introduces diversity, resolving the contradiction between uniformity and genetic diversity.
3Reliability
If backcross conversion and transformation methods are used to enhance traits, then abiotic stress tolerance and disease resistance are improved, but the process complexity increases
Solution Approach 1:
The patent uses backcrossing as an intermediary method to transfer specific desirable traits (abiotic stress tolerance, disease resistance) from donor varieties into the PH1KH4 inbred line. By using the inbred line as a recurrent parent in systematic backcrossing programs, the patent efficiently introduces targeted traits while maintaining the overall genetic background and uniformity of the base line, thus improving reliability without excessive complexity.
Data Source
AI summary
A novel maize variety designated PH1KH4 and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1KH4 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1KH4 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 PH1KH4 or a locus conversion of PH1KH4 with another maize variety.