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Related Experiment Video

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Isolation and Profiling of Human Primary Mesenteric Arterial Endothelial Cells at the Transcriptome Level

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Conserved transcriptomic profiles underpin monogamy across vertebrates.

Rebecca L Young^1,2, Michael H Ferkin³, Nina F Ockendon-Powell⁴

¹Department of Integrative Biology, The University of Texas at Austin, Austin, TX 78712; youngrl@utexas.edu hans@utexas.edu.

Proceedings of the National Academy of Sciences of the United States of America

|January 9, 2019

Summary

This summary is machine-generated.

Social monogamy evolved independently across many animal species. This study reveals a conserved genomic mechanism, identified through neural gene expression patterns, underlying the evolution of monogamy in vertebrates.

Keywords:

deep homology evolution gene expression mating systems social behavior

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Area of Science:

Evolutionary biology
Neuroscience
Genomics

Background:

Social monogamy, characterized by pair bonding and biparental care, has evolved independently multiple times across the animal kingdom.
While conserved brain regions and neuropeptides are implicated in social affiliation and parental care, the genomic underpinnings of monogamy remain largely unexplored.

Purpose of the Study:

To investigate the neuromolecular mechanisms of social monogamy on a genomic scale.
To identify conserved transcriptomic patterns associated with the evolution of monogamy across diverse vertebrate species.

Main Methods:

Comparative analysis of neural transcriptomes from reproductive males in monogamous and nonmonogamous species pairs.
Utilized diverse vertebrate models: Peromyscus mice, Microtus voles, parid songbirds, dendrobatid frogs, and Xenotilapia cichlid fishes.

Main Results:

Neural gene expression patterns correlated with mating system characteristics, independent of evolutionary divergence time.
Concordant variations in neural gene expression were observed across vertebrates during the transition to monogamy.

Conclusions:

Identified a universal transcriptomic mechanism associated with the evolution of social monogamy in vertebrates.
Suggests conserved genomic pathways contribute to the independent evolution of monogamous behaviors across diverse taxa.