Related Experiment Video
Updated: Feb 1, 2026

10:42
Oral Biofilm Sampling for Microbiome Analysis in Healthy Children
Published on: December 31, 2017
17.9K
q2-longitudinal: Longitudinal and Paired-Sample Analyses of Microbiome Data
Nicholas A Bokulich1, Matthew R Dillon1, Yilong Zhang2
1The Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, Arizona, USA.
Msystems
|December 4, 2018
Summary
Researchers can now analyze temporal microbiome trends with q2-longitudinal, a new QIIME 2 plugin. This tool offers advanced statistical and visualization methods for longitudinal microbiome data.
Area of Science:
- Microbiology
- Bioinformatics
- Computational Biology
Background:
- Longitudinal sampling in microbiome studies reveals temporal dynamics and heterogeneity.
- Traditional cross-sectional or pre-post designs offer limited insights compared to longitudinal approaches.
- Microbiome research increasingly requires robust tools for analyzing time-series data.
Purpose of the Study:
- To introduce q2-longitudinal, a novel software plugin for QIIME 2.
- To provide microbiome researchers with advanced analytical capabilities for longitudinal and paired-sample data.
- To enhance the accessibility of longitudinal microbiome data analysis.
Main Methods:
- Development of the q2-longitudinal plugin for the QIIME 2 platform.
- Integration of interactive plotting, linear mixed-effects models, and paired analyses.
- Inclusion of microbial interdependence testing, first differencing, feature selection, and volatility analyses.
Main Results:
- The q2-longitudinal plugin offers a comprehensive suite of tools for longitudinal microbiome analysis.
- The plugin facilitates the exploration of temporal trends and subject heterogeneity in microbiome data.
- Open-source availability under a BSD license ensures broad accessibility for research and commercial use.
Conclusions:
- q2-longitudinal significantly enhances the analytical capacity for longitudinal microbiome studies within the QIIME 2 ecosystem.
- The plugin democratizes advanced statistical and visualization techniques for time-series microbiome data.
- This tool will empower researchers to gain deeper insights into dynamic microbial communities.
Related Concept Videos
Longitudinal Research
13.3K
Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
13.3K
Longitudinal Studies
529
Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
529
DNA Base Pairing
33.2K
Erwin Chargaff’s rules on DNA equivalence paved the way for the discovery of base pairing in DNA. Chargaff’s rules state that in a double-stranded DNA molecule,
33.2K
DNA Base Pairing
32.4K
32.4K
Sign Test for Matched Pairs
413
The sign test for matched pairs offers a robust method for comparing two paired samples, often for the effects of an intervention in one of them. This method is very useful in situations where the underlying distribution of the data is unknown. The test compares two related samples—often pre- and post-treatment measurements on the same subjects—to determine if there are significant differences in their median values.
To conduct the sign test, we first calculate the differences in...
To conduct the sign test, we first calculate the differences in...
413
VSEPR Theory and the Effect of Lone Pairs
53.1K
Effect of Lone Pairs of Electrons on Molecule Geometry
53.1K

