Hybrid Maize X13A495 Trait Segmentation and Stability
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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
The development of the hybrid maize variety X13A495, produced by crossing two 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
1Adaptability or versatility
If traditional plant breeding is used to develop new maize varieties, then desirable traits such as disease resistance, drought tolerance, and high yield can be combined in a single hybrid, but maintaining uniformity and stability across environmental influences becomes difficult
Solution Approach 1:
The patent divides the breeding program into distinct phases: developing inbred lines with specific desirable traits through controlled crosses, then combining these inbred lines to create hybrids. This segmentation allows systematic accumulation of desirable traits (disease resistance, drought tolerance, high yield) in the inbreds before hybridization, thereby achieving both trait combination and uniformity in the final hybrid variety.
Solution Approach 2:
The patent employs locus conversions and transformation processes to introduce specific traits into the maize genome. By changing genetic parameters through these controlled modifications, the patent achieves both the combination of desirable traits and maintains uniformity and stability across environmental influences, resolving the technical contradiction.
2Reliability
If locus conversions and transformation processes are used to introduce specific traits, then resistance to abiotic stresses and diseases is enhanced, but the complexity of the breeding process increases
Solution Approach 1:
The patent performs locus conversions and transformations in advance during the development of inbred lines, before creating the final hybrid. By preparing the genetic modifications preliminarily in the inbred parents, the patent simplifies the overall breeding process while still achieving enhanced resistance to abiotic stresses and diseases in the final hybrid variety.
Data Source
AI summary
A novel maize variety designated X13A495 and seed, plants and plant parts thereof, produced by crossing Pioneer Hi-Bred International, Inc. proprietary inbred maize varieties. Methods for producing a maize plant that comprises crossing hybrid maize variety X13A495 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X13A495 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the maize variety X13A495, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X13A495. This invention further relates to methods for producing maize varieties derived from maize variety X13A495.