Silk Number Assay for Early Yield Prediction in Corn
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Solution Overview
Problem
Measuring yield in plants is challenging due to the complexity of the trait, numerous genes involved, and high variation in yield associated with pollination, making it difficult to identify genes that enhance yield through low throughput transgene discovery and validation processes.
Innovation Solution
A high throughput silk number determination assay is developed to evaluate yield potential in plants, allowing for the identification of yield-enhancing genes by differentiating between 10% differences in silk number between T1 transgenic and null plants, integrated with a nested block design and ImagePro silk counting software for efficient data collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional yield measurement methods are used, then yield data can be obtained, but the process is time-consuming and has low throughput
Solution Approach 1:
The patent applies preliminary action by measuring silk number at an early developmental stage (silking stage) to predict final yield before the harvest stage. This allows yield potential to be assessed early in the plant lifecycle, eliminating the need to wait for mature yield trials while still providing predictive data for gene screening decisions.
Solution Approach 2:
The patent uses silk number as an intermediary trait that correlates with final yield. Instead of measuring yield directly, the assay measures silk number as a surrogate indicator that can be obtained earlier and with higher throughput, then uses this intermediate data to predict yield outcomes for gene validation.
2Measurement precision
If traditional yield measurement is used, then comprehensive yield data is obtained, but measurement precision is reduced due to high variation from pollination
Solution Approach 1:
The patent extracts the pollination step from the yield measurement process by using silk number as the measurement target instead of actual grain yield. This eliminates the variability introduced by pollination success, as silk number is determined before pollination occurs and reflects the plant's inherent yield potential independent of pollination variability.
3Adaptability or versatility
If low throughput transgene discovery process is used, then validation accuracy is maintained, but the number of genes that can be screened is limited
Solution Approach 1:
The patent replaces the mechanical/manual process of traditional yield measurement with an automated high-throughput imaging and analysis system. The silk number assay uses digital imaging and automated image analysis software to quickly process large numbers of plants, substituting manual counting and measurement with automated optical detection and computation.
Data Source
AI summary
The invention provides a rapid and efficient method and assay for monitoring yield enhancement in a plant using a measure of silk number. The plant is transformed with a prospective gene associated with yield enhancement. The transformed plant is grown along with non-transformed control plants until silk growth is apparent. The change in the number of silks in the transformed plant correlated to the change in yield for the plant. Therefore, changes in yield enhancement can be estimated in the transformed plant prior to harvest of mature plant tissues.