Maize Inbred PH2TRS Breeding via Backcross Conversion
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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 creating stable, high-yielding maize varieties with desirable traits such as disease resistance, drought tolerance, and improved agronomic characteristics.
Innovation Solution
The introduction of the novel maize variety PH2TRS, which involves crossing with another maize plant to introduce desired traits through backcross conversion, genetic manipulation, and transformation, including cytoplasmic or nuclear factors for male sterility, and the use of tissue culture to regenerate plants with specific physiological and morphological characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding methods are used to develop new varieties with desirable traits, then the varieties achieve stability and high yield, but the development process takes six to twelve years
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred line PH2TRS with desired traits (drought tolerance, disease resistance, yield potential) before hybrid development. This advance preparation of parental material with optimized genetic characteristics accelerates the breeding process while ensuring variety stability, as the foundation genetics are already established and tested for performance across multiple environments
2Productivity
If traditional breeding methods are used to combine desirable traits, then stable high-yielding varieties are produced, but the process is time-consuming
Solution Approach 1:
The patent employs copying by creating multiple hybrid combinations using the validated inbred line PH2TRS as a parent. Instead of developing each hybrid variety through lengthy individual breeding processes, the proven genetic foundation of PH2TRS is copied and combined with various other inbred lines to produce multiple high-yielding hybrids, significantly reducing development time while maintaining productivity
3Adaptability or versatility
If inbred line PH2TRS is crossed with other maize plants to introduce desired traits, then new varieties with improved characteristics are developed, but the complexity of the breeding process increases
Solution Approach 1:
The patent applies universality by designing inbred line PH2TRS with multiple desirable traits (drought tolerance, disease resistance, yield potential, adaptability) that can be universally combined with various other inbred lines. This multi-functional parental line serves multiple breeding objectives simultaneously, reducing process complexity despite the diversity of traits being introduced into different hybrid combinations
Data Source
AI summary
A novel maize variety designated PH2TRS and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2TRS with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH2TRS 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 PH2TRS or a locus conversion of PH2TRS with another maize variety.