X11T097 Hybrid Maize Breeding for Trait Stacking Stability
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Solution Overview
Problem
Existing hybrid maize development methods struggle to combine desirable traits such as disease resistance, heat and drought tolerance, and improved yield while maintaining uniformity and stability, which are crucial for commercial crop production.
Innovation Solution
The development of the maize hybrid variety X11T097, produced by crossing specific inbred varieties and incorporating genetic loci for traits like male sterility, disease resistance, and altered metabolism through backcrossing and transformation, along with cytoplasmically-inherited traits to enhance hybrid performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding methods are used to combine multiple desirable traits, then the number of traits incorporated increases, but the uniformity and stability of plant characteristics deteriorate
Solution Approach 1:
The patent segments the breeding process into distinct generations (P1, P2, F1, F2, F3, etc.) with specific selection criteria for each stage. This structured segmentation allows systematic incorporation of multiple traits while maintaining control over uniformity at each step, resolving the contradiction between trait diversity and compositional stability.
Solution Approach 2:
The patent performs preliminary actions by pre-selecting parent lines with specific desirable traits before crossing. The P1 and P2 generations are carefully selected and characterized in advance, ensuring that subsequent F1 hybrids inherit a controlled combination of traits. This preliminary selection maintains uniformity while enabling multiple trait incorporation.
2Adaptability or versatility
If traditional plant breeding is used to develop new varieties, then genetic diversity and trait combination increase, but the time required for variety development increases
Solution Approach 1:
The patent implements periodic action through defined breeding cycles and generations (P1→P2→F1→F2→F3→F4). Each generation represents a periodic stage with specific objectives, allowing systematic progression through the breeding process. This structured periodicity accelerates variety development by eliminating unnecessary intermediate steps while maintaining genetic diversity.
Solution Approach 2:
The patent performs preliminary crossing and selection in the P1 and P2 generations to pre-establish desirable genetic combinations. This preliminary action reduces the time required in subsequent generations by starting with optimized parent lines, thereby accelerating overall variety development while preserving genetic diversity.
3Productivity
If mechanical harvesting is implemented, then crop production efficiency increases, but the requirement for uniformity of plant characteristics becomes more critical
Solution Approach 1:
The patent applies local quality by selecting for uniformity in specific critical characteristics (maturity, plant height, ear height) that directly impact mechanical harvesting efficiency, while allowing variation in other non-critical traits. This targeted approach maintains the uniformity required for mechanical harvesting without constraining overall genetic diversity.
Solution Approach 2:
The patent performs preliminary selection for uniformity in key harvesting-related traits during the P1 and P2 generations. By establishing uniformity in maturity and plant architecture early in the breeding process, the resulting F1 hybrids are pre-optimized for mechanical harvesting, ensuring both high productivity and the precision required for efficient harvest.
Data Source
AI summary
A novel maize variety designated X11T097 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 X11T097 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X11T097 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X11T097, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X11T097 are provided. Methods for producing maize varieties derived from maize variety X11T097 and methods of using maize variety X11T097 are disclosed.