Evidence map›Paper›PMID 17592650›Full record

ArticleBMC evolutionary biology2007

The influence of body size and net diversification rate on molecular evolution during the radiation of animal phyla.

Eric Fontanillas, John J Welch, Jessica A Thomas, Lindell Bromham

Abstract readComparative Study
In one paragraph

Article in BMC evolutionary biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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3 · Its place in the literature

Who cites it

25 citing papers in PubMed.

  1. Negative allometry of egg size among 29 species of drosophilid flies.bioRxiv : the preprint server for biology · 2026
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  3. Review
  4. Completing a molecular timetree of primates.Frontiers in bioinformatics · 2024
    Article
  5. Article
  6. Body size predicts the rate of contemporary morphological change in birds.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  7. Article
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  16. Variation in the molecular clock of primates.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

4 authors.

Eric FontanillasCentre for the Study of Evolution, School of Life Sciences, University of Sussex, Falmer, Brighton, UK. eric.fontanillas@anu.edu.au
John J Welch
Jessica A Thomas
Lindell Bromham

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMolecular clock dates, which place the origin of animal phyla deep in the Precambrian, have been used to reject the hypothesis of a rapid evolutionary radiation of animal phyla supported by the fossil record. One possible explanation of the discrepancy is the potential for fast substitution rates early in the metazoan radiation. However, concerted rate variation, occurring simultaneously in multiple lineages, cannot be detected by "clock tests", and so another way to explore such variation is to look for correlated changes between rates and other biological factors. Here we investigate two possible causes of fast early rates: change in average body size or diversification rate of deep metazoan lineages.

resultsFor nine genes for phylogenetically independent comparisons between 50 metazoan phyla, orders, and classes, we find a significant correlation between average body size and rate of molecular evolution of mitochondrial genes. The data also indicate that diversification rate may have a positive effect on rates of mitochondrial molecular evolution.

conclusionIf average body sizes were significantly smaller in the early history of the Metazoa, and if rates of diversification were much higher, then it is possible that mitochondrial genes have undergone a slow-down in evolutionary rate, which could affect date estimates made from these genes.

Indexed as

Biological EvolutionBody SizeEvolution, MolecularGenetic SpeciationAnimal Population GroupsAnimalsDNADNA, MitochondrialExtinction, BiologicalGenes, MitochondrialModels, BiologicalMutationPhylogenySequence AlignmentSequence Homology, Nucleic AcidSpecies SpecificityDNADNA, Mitochondrial

Identifiers

PMID17592650
PMCPMC1929056

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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.