Maize Variety PHV92 Marker-Assisted Trait Selection
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Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and uniformity, which are essential for efficient crop production and yield improvement.
Innovation Solution
Development of the maize variety PHV92, which involves crossing with other maize plants to introduce desired traits through backcross conversion and transformation, resulting in a hybrid with enhanced resistance and agronomic qualities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding methods are used to combine desirable traits, then the breeding process can proceed with conventional techniques, but the ability to effectively combine multiple traits such as disease resistance, drought tolerance, and uniformity is limited
Solution Approach 1:
The patent applies parameter changes by utilizing molecular markers to detect and select specific genetic traits during the breeding process. This allows breeders to track and combine multiple desirable traits (disease resistance, drought tolerance, uniformity) simultaneously through marker-assisted selection, fundamentally changing the approach from phenotypic selection to genotypic selection based on molecular markers
2Productivity
If multiple desirable traits are combined in a single variety, then the crop performance and yield are improved, but the breeding time and resources required increase
Solution Approach 1:
The patent applies preliminary action by using molecular markers to identify and select for multiple desirable traits early in the breeding process, before the plants are grown and phenotypic evaluation is required. This allows breeders to pre-screen large numbers of breeding lines for multiple traits simultaneously, significantly reducing the time required to develop varieties with combined desirable traits
3Manufacturing precision
If uniformity of plant characteristics is achieved for mechanical harvesting, then harvest efficiency is improved, but the genetic diversity and trait combination options are reduced
Solution Approach 1:
The patent applies local quality by using molecular markers to select for uniformity in specific plant characteristics (height, maturity, plant architecture) that are critical for mechanical harvesting, while simultaneously maintaining or selecting for diverse combinations of other traits (disease resistance, drought tolerance, yield potential). This allows different regions of the genotype to be optimized for different functions
Data Source
AI summary
A novel maize variety designated PHV92 and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PHV92 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PHV92 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PHV92 or a trait conversion of PHV92 with another maize variety. Inbred maize varieties derived from maize variety PHV92, methods for producing other inbred maize varieties derived from maize variety PHV92 and the inbred maize varieties and their parts derived by the use of those methods.