Maize Inbred PH42KS Trait Introgression
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Solution Overview
Problem
The development of new maize varieties and hybrids is a time-consuming process, taking six to twelve years, and existing technologies face challenges in combining desirable traits such as disease resistance, drought tolerance, and high yield in a stable and agronomically sound manner.
Innovation Solution
The introduction of the novel maize variety PH42KS, which can be crossed with other maize plants to introduce desirable traits through backcross conversion, genetic manipulation, and transformation, incorporating cytoplasmic or nuclear factors for male sterility and other beneficial characteristics like herbicide tolerance, insect resistance, and improved metabolic traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding methods are used to combine desirable traits, then stable and agronomically sound varieties are achieved, but the development process takes six to twelve years
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred line PH42KS with specific desirable traits (disease resistance, yield potential, agronomic characteristics) before hybrid development. This preliminary characterization and selection of parental lines with complementary traits accelerates the breeding process by reducing the need for extensive multi-year field testing and selection, while maintaining variety stability through controlled crossbreeding of well-characterized parents
2Adaptability or versatility
If multiple desirable traits are combined in a single variety, then agronomic performance and resistance are improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies segmentation by dividing the complex trait combination task into manageable components through the use of distinct inbred parental lines, each contributing specific desirable traits. Inbred line PH42KS is segmented to provide particular traits (disease resistance, yield characteristics) while being crossed with another inbred line providing complementary traits. This segmentation of genetic material into specialized parental lines simplifies the breeding program complexity while achieving multiple desirable traits in the resulting hybrid variety
Data Source
AI summary
A novel maize variety designated PH42KS and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH42KS with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH42KS through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety PH42KS or a locus conversion of PH42KS with another maize variety.