Maize Hybrid X13F334 Trait Segmentation and Preliminary Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and high yield in a single hybrid variety, while maintaining uniformity and stability across environmental influences.
Innovation Solution
Development of the hybrid maize variety X13F334, produced by crossing proprietary Pioneer Hi-Bred International inbred varieties, which incorporates locus conversions and transformation processes to introduce specific traits, enhancing resistance to abiotic stresses, diseases, and improving agronomic performance.
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 improved, but the time to crop maturity increases and yield uniformity decreases
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred parental lines with specific desirable traits (disease resistance, drought tolerance) before hybridization. This preliminary characterization allows the hybrid to inherit combined traits without requiring extended breeding time, as the parental lines are already optimized for the desired characteristics.
Solution Approach 2:
The patent utilizes parameter changes by modifying genetic parameters through controlled cross-breeding of inbred lines. By changing the genetic composition parameters of the parental lines and combining them in a hybrid, the patent achieves improved disease resistance and drought tolerance while maintaining a defined maturity timeline, thus resolving the time-resistance contradiction.
2Reliability
If multiple desirable traits are combined in a single hybrid, then resistance to diseases and insects improves, but plant characteristic uniformity worsens
Solution Approach 1:
The patent applies local quality by introducing specific trait loci (disease resistance, insect resistance) into specific positions within the hybrid genome, while maintaining uniformity in other plant characteristics. This allows the hybrid to exhibit localized improved resistance traits without compromising overall plant uniformity, as the desirable traits are integrated at specific genetic loci rather than throughout the entire genome.
Solution Approach 2:
The patent utilizes segmentation by dividing the complex trait combination into separate inbred parental lines, each contributing specific desirable traits. This segmentation allows each parent to be optimized for particular resistance traits independently, and when crossed, the hybrid receives a segmented combination of traits that maintains overall uniformity while providing comprehensive resistance.
3Productivity
If hybrid varieties are developed through cross-breeding, then yield and resistance traits improve, but the complexity of the breeding process increases
Solution Approach 1:
The patent reduces breeding process complexity by applying preliminary action through pre-characterization of inbred parental lines for specific traits. This preliminary work is performed once and can be reused across multiple hybrid developments, reducing the overall complexity and time required for subsequent hybrid breeding programs while maintaining high yield and resistance traits.
Solution Approach 2:
The patent manages breeding complexity through controlled parameter changes by defining specific genetic parameters to be combined in the hybrid. By focusing on key parameters (yield, disease resistance, drought tolerance) rather than attempting to optimize all possible traits simultaneously, the patent simplifies the breeding process while achieving superior performance in the most critical productivity-related parameters.
Data Source
AI summary
A novel maize variety designated X13F334 and seed, plants and plant parts thereof are produced by crossing inbred maize varieties. Methods for producing a maize plant by crossing hybrid maize variety X13F334 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X13F334 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the maize variety X13F334, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X13F334. This invention further relates to methods for producing maize varieties derived from maize variety X13F334.