Maize Hybrid X16T126 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 in commercial crops.
Innovation Solution
The development of a novel maize hybrid variety X16T126, 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 complexity of the breeding process increases, but the uniformity and stability of the hybrid crop decreases
Solution Approach 1:
The patent segments the breeding process into distinct stages: developing inbred lines with specific traits, then crossing them to produce hybrids. This segmentation allows each inbred line to be optimized for particular traits (disease resistance, drought tolerance, etc.) while maintaining genetic stability, and the hybrid combines these segmented traits in a uniform manner across the population.
Solution Approach 2:
The patent applies local quality by ensuring that specific regions of the genome (inbred lines) have specialized functions - one inbred line contributes disease resistance while another contributes drought tolerance. When crossed, these locally optimized genetic regions combine to produce a hybrid with uniform expression of multiple traits across the entire population.
2Adaptability or versatility
If multiple traits are combined in a single hybrid through traditional breeding, then the breeding time and complexity increase, but the productivity gain is limited
Solution Approach 1:
The patent applies preliminary action by developing and stabilizing inbred lines with specific desirable traits before crossing them. The inbred lines are prepared in advance with predetermined characteristics (disease resistance, insect resistance, drought tolerance), so that when crossed, they immediately produce hybrids with combined traits without requiring additional breeding cycles to stabilize the combination.
Solution Approach 2:
The patent merges multiple inbred lines, each carrying specific desirable traits, into a single hybrid combination. This merging consolidates the benefits of multiple trait developments into one unified hybrid variety, achieving productivity gains by combining disease resistance, insect resistance, and abiotic stress tolerance in a single crop population.
3Stability of the object's composition
If inbred lines are developed with high uniformity, then the genetic diversity available for trait combination is reduced
Solution Approach 1:
The patent segments the genetic material into separate inbred lines, each maintaining high internal uniformity and stability. Each inbred line is genetically homogeneous but carries different desirable traits. When crossed, these segmented uniform lines combine to produce hybrids that exhibit both uniformity (from the inbred parent lines) and genetic diversity (from the combination of different inbred line traits).
Data Source
AI summary
A novel maize variety designated X16T126 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 X16T126 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X16T126 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X16T126, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X16T126 are provided. Methods for producing maize varieties derived from maize variety X16T126 and methods of using maize variety X16T126 are disclosed.