Maize Variety PH12S2 Trait Introgression via Segmentation
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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 a novel maize variety, PH12S2, which incorporates specific genetic traits through backcross conversion and transformation, enhancing resistance to various stresses and improving agronomic qualities like yield and maturity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding is used, then basic crop varieties can be developed, but the ability to combine multiple desirable traits (disease resistance, drought tolerance, uniformity, yield) is limited
Solution Approach 1:
The breeding process is divided into distinct phases: initial cross between PH12S2 and a line with desired traits, followed by multiple backcrosses to PH12S2, and finally selfing. This segmentation allows systematic introduction and stabilization of specific traits while maintaining the base variety's genetics.
Solution Approach 2:
The patent performs backcross conversion before final variety release, pre-introducing desired traits into the PH12S2 background. This preliminary action ensures that the base variety contains the necessary genetic material before being used in commercial hybrid production, streamlining the overall breeding pipeline.
2Productivity
If mechanical harvesting is implemented, then harvest efficiency is improved, but uniformity of plant characteristics (germination, stand establishment, growth rate, maturity, plant height, ear height) becomes critical and harder to achieve
Solution Approach 1:
The patent modifies genetic parameters of the maize variety through controlled breeding to achieve uniformity in key traits. By selecting and stabilizing specific alleles related to germination timing, growth rate, maturity date, and plant/ear height, the variety produces uniform phenotypes suitable for mechanical harvesting.
Solution Approach 2:
The variety is bred to be self-sufficient in producing uniform characteristics without requiring external intervention during growth. The genetic makeup inherently ensures consistent germination, stand establishment, and maturation patterns, allowing the crop to self-regulate its development for optimal mechanical harvest performance.
Data Source
AI summary
A novel maize variety designated PH12S2 and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH12S2 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH12S2 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 PH12S2 or a locus conversion of PH12S2 with another maize variety.