TimeTrial: An Interactive Application for Optimizing the Design and Analysis of Transcriptomic Time-Series Data in Circadian Biology Research

The circadian rhythm drives the oscillatory expression of thousands of genes across all tissues, coordinating physiological processes. The effect of this rhythm on health has generated increasing interest in discovering genes under circadian control by searching for periodic patterns in transcriptom...

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Bibliographic Details
Published in:Journal of biological rhythms 2020-10, Vol.35 (5), p.439-451
Main Authors: Ness-Cohn, Elan, Iwanaszko, Marta, Kath, William L., Allada, Ravi, Braun, Rosemary
Format: Article
Language:English
Subjects:
Algorithms
Circadian rhythm
Circadian rhythms
Cycles
Design analysis
Design of experiments
Design optimization
Experimental design
Gene expression
Genes
JBR s on Data Analysis
Noise levels
Physiological effects
Sampling
Time series
Waveforms
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Summary:The circadian rhythm drives the oscillatory expression of thousands of genes across all tissues, coordinating physiological processes. The effect of this rhythm on health has generated increasing interest in discovering genes under circadian control by searching for periodic patterns in transcriptomic time-series experiments. While algorithms for detecting cycling transcripts have advanced, there remains little guidance quantifying the effect of experimental design and analysis choices on cycling detection accuracy. We present TimeTrial, a user-friendly benchmarking framework using both real and synthetic data to investigate cycle detection algorithms’ performance and improve circadian experimental design. Results show that the optimal choice of analysis method depends on the sampling scheme, noise level, and shape of the waveform of interest and provides guidance on the impact of sampling frequency and duration on cycling detection accuracy. The TimeTrial software is freely available for download and may also be accessed through a web interface. By supplying a tool to vary and optimize experimental design considerations, TimeTrial will enhance circadian transcriptomics studies.
ISSN:0748-7304
1552-4531
DOI:10.1177/0748730420934672