Maize Inbred 1PBGR49 Breeding for Genetic Stability
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Solution Overview
Problem
The development of new maize varieties and hybrids is a time-consuming process, taking six to twelve years, and existing technologies face challenges in creating stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved agronomic characteristics.
Innovation Solution
The introduction of the novel maize variety 1PBGR49, which involves specific breeding techniques including backcross conversion, genetic manipulation, and transformation to incorporate traits like male sterility, disease resistance, and improved metabolic traits, along with detailed processes for crossing and seed production to ensure uniformity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional breeding methods are used to develop new maize varieties, then genetic uniformity and stability can be achieved, but the development process takes six to twelve years
Solution Approach 1:
The patent employs preliminary action by pre-establishing inbred lines with desired traits (such as disease resistance, drought tolerance, and improved agronomic characteristics) before combining them into hybrid varieties. This preparatory work of developing and characterizing inbred lines in advance allows for more efficient hybrid development and reduces overall breeding time while maintaining genetic stability.
Solution Approach 2:
The breeding process is segmented into distinct phases: developing individual inbred lines with specific traits, evaluating them separately, and then combining selected lines into hybrid varieties. This segmentation allows parallel development of multiple inbred lines with different desirable traits, accelerating the overall variety development process while ensuring each component maintains genetic uniformity.
2Productivity
If multiple desirable traits are combined in a single variety, then agronomic performance and yield are improved, but the breeding process becomes more complex
Solution Approach 1:
The patent applies local quality by developing inbred lines that each excel in specific local conditions or possess particular traits (such as disease resistance, drought tolerance, or improved grain quality). This allows different regions or applications to utilize inbreds optimized for their specific needs, improving overall productivity without requiring a single complex variety to contain all traits simultaneously.
Solution Approach 2:
The patent merges multiple inbred lines, each contributing specific desirable traits, into hybrid varieties that combine these advantages. By selecting and combining inbreds with complementary traits rather than attempting to develop one variety with all traits, the breeding process complexity is managed while achieving high agronomic performance and yield through hybrid vigor.
Data Source
AI summary
A novel maize variety designated 1PBGR49 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PBGR49 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PBGR49 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety 1PBGR49 or a locus conversion of 1PBGR49 with another maize variety.