Panicum virgatum SOK2 Gene Delays Flowering and Boosts Biomass

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Solution Overview

Problem

Current technologies face challenges in increasing the biomass and fermentable sugar yield of Panicum virgatum, a key biomass resource, while also failing to effectively regulate flowering time and improve cell wall molecular quality.

Innovation Solution

The development of a coding gene for the SOSEKI protein SOK2 from Panicum virgatum, integrated into a recombinant vector and expressed using genetic transformation, delays flowering time and enhances biomass and fermentable sugar production through overexpression in transgenic plants.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If conventional breeding or standard agricultural practices are used to increase biomass, then plant biomass may increase, but flowering time cannot be effectively regulated and cell wall molecular quality remains insufficient

Engineering Contradiction:
Improveplant biomassVSAvoidflowering time regulation
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent changes the genetic parameter by introducing and overexpressing the SOK2 gene in Panicum virgatum. This genetic parameter change enables simultaneous control of flowering time and biomass accumulation, resolving the contradiction between increasing biomass and regulating flowering time through conventional methods alone.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The SOK2 gene acts as an intermediary factor that mediates between flowering time regulation and biomass accumulation. By overexpressing this intermediary gene, the patent achieves coordinated control of both parameters, allowing extended vegetative growth period without compromising cell wall molecular quality.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If gene modification is attempted to increase biomass and regulate flowering time, then these parameters can be improved, but the complexity of genetic engineering and transformation processes increases

Engineering Contradiction:
Improvefermentable sugar yieldVSAvoidgenetic transformation system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the complex genetic engineering process into distinct modular steps: gene identification (SOK2), vector construction (pANIC6B-PvSOK2), transformation method selection (agrobacterium-mediated), and phenotype screening. This segmentation reduces the complexity barrier and makes the process more reproducible for increasing fermentable sugar yield.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent utilizes the plant's own genetic system and existing transformation protocols to achieve gene insertion and expression. By employing the plant's natural pathways and established laboratory techniques, the patent minimizes external complexity while achieving the desired productivity enhancement in fermentable sugar yield.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If multiple genes are modified to simultaneously improve biomass, cell wall quality, and flowering time, then comprehensive improvement is achieved, but the difficulty of detecting and measuring multiple parameters increases

Engineering Contradiction:
Improvecell wall molecular qualityVSAvoidmultiple parameter assessment
Core Design Contradiction:
Manufacturing precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The patent extracts and focuses on a single key gene (SOK2) that has been identified as critical for coordinating flowering time and biomass accumulation. By concentrating on this one pivotal gene rather than modifying multiple genes simultaneously, the patent simplifies the detection and measurement of phenotypic changes while achieving comprehensive improvement in cell wall molecular quality, biomass, and flowering time regulation.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS11897923B2Panicum virgatum SOSEKI protein SOK2, coding gene and application thereof
Publication Date: 2024.02.13 QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
  • US11897923B2 patent drawing
  • US11897923B2 patent drawing
  • US11897923B2 patent drawing

AI summary

The present invention relates to a coding gene of the SOSEKI protein SOK2 and an application thereof, wherein through molecular regulation of the SOSEKI protein SOK2, the flowering time of Panicum virgatum is delayed, biomass is increased, lignin content in the cell wall of Panicum virgatum is reduced and the fermentable sugar yield is boosted.