Skip to main content
bioRxiv
  • Home
  • About
  • Submit
  • ALERTS / RSS
Advanced Search
New Results

Sensory-based quantification of male colour patterns in Trinidadian guppies reveals nonparallel phenotypic evolution across an ecological transition in multivariate trait space

View ORCID ProfileLengxob Yong, Darren P. Croft, Jolyon Troscianko, Indar Ramnarine, Alastair Wilson
doi: https://doi.org/10.1101/2020.11.23.394668
Lengxob Yong
1Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Treliever Road, Penryn TR10 9FE, UK
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • ORCID record for Lengxob Yong
  • For correspondence: lengxob.yong@gmail.com
Darren P. Croft
2Centre for Research in Animal Behaviour, College of Life and Environmental Sciences, University of Exeter, Perry Road, Exeter EX4 4QG, UK
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Jolyon Troscianko
1Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Treliever Road, Penryn TR10 9FE, UK
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Indar Ramnarine
3Department of Life Sciences, The University of The West Indies, St Augustine, Trinidad and Tobago
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Alastair Wilson
1Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Treliever Road, Penryn TR10 9FE, UK
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • Abstract
  • Full Text
  • Info/History
  • Metrics
  • Supplementary material
  • Preview PDF
Loading

ABSTRACT

Parallel evolution, in which independent populations evolve along similar phenotypic trajectories, offers insights into the repeatability of adaptive evolution. Here, we revisit a classic example of parallelism, that of repeated evolution of brighter males in the Trinidadian guppy. In guppies, colonisation of low predation habitats is associated with emergence of ‘more colourful’ phenotypes since predator-induced viability selection for crypsis weakens while sexual selection by female preference for conspicuity remains strong. Our study differs from previous investigations in three respects. First, we adopt a multivariate phenotyping approach to characterise parallelism in multi-trait space. Second, we use ecologically-relevant colour traits defined by the visual systems of the two selective agents (i.e. guppy, predatory cichlid). Third, we estimate population genetic structure to test for adaptive (parallel) evolution against a model of neutral phenotypyc divergence. We find strong phenotypic differentiation that is inconsistent with a neutral model, but only limited support for the predicted pattern of greater conspicuity at low predation. Effects of predation regime on each trait were in the expected direction, but weak, largely non-significant, and explained little among-population variation. In multi-trait space, phenotypic trajectories of lineages colonising low from high predation regimes were not parallel. Our results are consistent with reduced predation risk facilitating adaptive differentiation by female choice, but suggest that this proceeds in (effectively) independent directions of multi-trait space across lineages. Pool-sequencing data also revealed SNPs showing greater differentiation than expected under neutrality and/or associations with known colour genes in other species, presenting opportunities for future genetic study.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-ND 4.0 International license.
Back to top
PreviousNext
Posted November 23, 2020.
Download PDF

Supplementary Material

Email

Thank you for your interest in spreading the word about bioRxiv.

NOTE: Your email address is requested solely to identify you as the sender of this article.

Enter multiple addresses on separate lines or separate them with commas.
Sensory-based quantification of male colour patterns in Trinidadian guppies reveals nonparallel phenotypic evolution across an ecological transition in multivariate trait space
(Your Name) has forwarded a page to you from bioRxiv
(Your Name) thought you would like to see this page from the bioRxiv website.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Share
Sensory-based quantification of male colour patterns in Trinidadian guppies reveals nonparallel phenotypic evolution across an ecological transition in multivariate trait space
Lengxob Yong, Darren P. Croft, Jolyon Troscianko, Indar Ramnarine, Alastair Wilson
bioRxiv 2020.11.23.394668; doi: https://doi.org/10.1101/2020.11.23.394668
Digg logo Reddit logo Twitter logo CiteULike logo Facebook logo Google logo Mendeley logo
Citation Tools
Sensory-based quantification of male colour patterns in Trinidadian guppies reveals nonparallel phenotypic evolution across an ecological transition in multivariate trait space
Lengxob Yong, Darren P. Croft, Jolyon Troscianko, Indar Ramnarine, Alastair Wilson
bioRxiv 2020.11.23.394668; doi: https://doi.org/10.1101/2020.11.23.394668

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
  • Tweet Widget
  • Facebook Like
  • Google Plus One

Subject Area

  • Evolutionary Biology
Subject Areas
All Articles
  • Animal Behavior and Cognition (2655)
  • Biochemistry (5293)
  • Bioengineering (3706)
  • Bioinformatics (15853)
  • Biophysics (7295)
  • Cancer Biology (5660)
  • Cell Biology (8145)
  • Clinical Trials (138)
  • Developmental Biology (4796)
  • Ecology (7568)
  • Epidemiology (2059)
  • Evolutionary Biology (10628)
  • Genetics (7755)
  • Genomics (10177)
  • Immunology (5238)
  • Microbiology (13992)
  • Molecular Biology (5405)
  • Neuroscience (30935)
  • Paleontology (218)
  • Pathology (887)
  • Pharmacology and Toxicology (1529)
  • Physiology (2264)
  • Plant Biology (5049)
  • Scientific Communication and Education (1045)
  • Synthetic Biology (1405)
  • Systems Biology (4167)
  • Zoology (816)