# 🐜 Gene expression variation in the brains of harvester ant foragers is associated with collective behavior

**Daniel A. Friedman, Brian R. Johnson, Timothy A. Linksvayer** (2020) · *Communications Biology*

[![DOI](https://img.shields.io/badge/DOI-10.1038%2Fs42003-020-0813-8-blue)](https://doi.org/10.1038/s42003-020-0813-8)

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## Abstract

> This study investigates how gene expression variation in the brains of red harvester ant foragers is linked to collective behavior and reproductive success. Using RNA-seq, we found that differences in gene expression among colonies correlate with their sensitivity to humidity and the dopamine-to-serotonin ratio in forager brains.

## Keywords

`gene expression` · `foragers` · `RNA-Seq` · `division of labor` · `transcriptomics` · `harvester ants` · `behavioral castes` · `Pogonomyrmex barbatus`

## Key Contributions

- Identified gene expression differences in forager brains across ant colonies.
- Established a link between gene expression variation and colony-level traits related to foraging behavior.
- Demonstrated that neurophysiological differences influence collective behavior in natural settings.
- Provided insights into the evolutionary constraints on gene expression related to colony behavior.

## Methods

- Utilized RNA-seq to profile gene expression in the brains of foragers from nine colonies.
- Applied supervised and unsupervised statistical approaches to analyze transcriptomic patterns.
- Conducted dimensional reduction techniques such as PCA and linear discriminant analysis to differentiate colonies.
- Performed gene ontology enrichment analyses to identify functional categories associated with expression patterns.

## 🎯 Consulting & Tutoring

**Available for AI Research Consulting and Tutoring.** [Contact Daniel Ari Friedman, PhD](https://danielarifriedman.com/) for collaboration on Active Inference, Bayesian modeling, and computational biology.

## Citation

```bibtex
@article{2020_GeneExpressionForagers,
  author = {Daniel A. Friedman, Brian R. Johnson, Timothy A. Linksvayer},
  title = {{Gene expression variation in the brains of harvester ant foragers is associated with collective behavior}},
  journal = {Communications Biology},
  year = {2020},
  doi = {10.1038/s42003-020-0813-8},
}
```

## File Inventory

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