Evidence map›Paper›PMID 19849854›Full record

ArticleBMC evolutionary biology2009

Does evolutionary innovation in pharyngeal jaws lead to rapid lineage diversification in labrid fishes?

Michael E Alfaro, Chad D Brock, Barbara L Banbury, Peter C Wainwright

Abstract read
In one paragraph

Article in BMC evolutionary biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

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0cells of the map it votes in
26citing papers in PubMed
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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

26 citing papers in PubMed.

  1. Article
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  6. Integration drives rapid phenotypic evolution in flatfishes.Proceedings of the National Academy of Sciences of the United States of America · 2021
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  16. Evolution of ecological dominance of yeast species in high-sugar environments.Evolution; international journal of organic evolution · 2015
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  17. Review
  18. Article
  19. Article
  20. Springs, steroids, and slingshots: the roles of enhancers and constraints in animal movement.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2013
    Review
4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Michael E AlfaroUniversity of California, Los Angeles, CA 90095-1606, USA. michaelalfaro@ucla.edu
Chad D Brock
Barbara L Banbury
Peter C Wainwright

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMajor modifications to the pharyngeal jaw apparatus are widely regarded as a recurring evolutionary key innovation that has enabled adaptive radiation in many species-rich clades of percomorph fishes. However one of the central predictions of this hypothesis, that the acquisition of a modified pharyngeal jaw apparatus will be positively correlated with explosive lineage diversification, has never been tested. We applied comparative methods to a new time-calibrated phylogeny of labrid fishes to test whether diversification rates shifted at two scales where major pharyngeal jaw innovations have evolved: across all of Labridae and within the subclade of parrotfishes.

resultsDiversification patterns within early labrids did not reflect rapid initial radiation. Much of modern labrid diversity stems from two recent rapid diversification events; one within julidine fishes and the other with the origin of the most species-rich clade of reef-associated parrotfishes. A secondary pharyngeal jaw innovation was correlated with rapid diversification within the parrotfishes. However diversification rate shifts within parrotfishes are more strongly correlated with the evolution of extreme dichromatism than with pharyngeal jaw modifications.

conclusionThe temporal lag between pharyngeal jaw modifications and changes in diversification rates casts doubt on the key innovation hypothesis as a simple explanation for much of the richness seen in labrids and scarines. Although the possession of a secondarily modified PJA was correlated with increased diversification rates, this pattern is better explained by the evolution of extreme dichromatism (and other social and behavioral characters relating to sexual selection) within Scarus and Chlorurus. The PJA-innovation hypothesis also fails to explain the most dominant aspect of labrid lineage diversification, the radiation of the julidines. We suggest that pharyngeal jaws might have played a more important role in enabling morphological evolution of the feeding apparatus in labrids and scarines rather than in accelerating lineage diversification.

Indexed as

Biological EvolutionPhylogenyAnimalsFishesJawSequence Analysis, DNA

Identifiers

PMID19849854
PMCPMC2779191

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.