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Cited by 102Evolution and Paleontology StudiesGenomics and Phylogenetic StudiesPlant Diversity and Evolution

The DOI matches its Crossref record; 82 of the 83 references it cites were found in a registry or an index.

Local Molecular Clocks in Three Nuclear Genes: Divergence Times for Rodents and Other Mammals and Incompatibility Among Fossil Calibrations

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Douzery, Emmanuel J. P., Delsuc, Fr�d�ric, Stanhope, Michael J., Huchon, Doroth�e·2003·Journal of Molecular Evolution
DOI 10.1007/s00239-003-0028-x
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Abstract

Reconstructing the chronology of mammalian evolution is a debated issue between molecule- and fossil-based inferences. A methodological limitation of molecules is the evolutionary rate variation among lineages, precluding the application of the global molecular clock. We considered 2422 first and second codon positions of the combined ADRA2B, IRBP, and vWF nuclear genes for a well-documented set of placentals including an extensive sampling of rodents. Using seven independent calibration points and a maximum-likelihood framework, we evaluated whether molecular and paleontological estimates of mammalian divergence dates may be reconciled by the local molecular clocks approach, allowing local constancy of substitution rates with variations at larger phylogenetic scales. To handle the difficulty of choosing among all possible rate assignments for various lineages, local molecular clocks were based on the results of branch-length and two-cluster tests. Extensive lineage-specific variation of evolutionary rates was detected, even among rodents. Cross-calibrations indicated some incompatibilities between divergence dates based on different paleontological references. To decrease the impact of a single calibration point, estimates derived from independent calibrations displaying only slight reciprocal incompatibility were averaged. The divergence dates inferred for the split between mice and rats (approximately 13-19 Myr) was younger than previously published molecular estimates. The most recent common ancestors of rodents, primates and rodents, boreoeutherians, and placentals were estimated to be, respectively, approximately 60, 70, 75, and 78 Myr old. Global clocks, local clocks, and quartet dating analyses suggested a Late Cretaceous origin of the crown placental clades followed by a Tertiary radiation of some placental orders like rodents.

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Metadata

Authors
Douzery, E. J. P., Delsuc, F., Stanhope, M. J., & Huchon, D.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Queen's University Belfast (GB)
Corresponding author
Douzery, Emmanuel J. P.
ORCID
Venue
Journal of Molecular Evolution
Publisher
Springer Science and Business Media LLC
Published
2003-08-01
Volume
57
Issue
0
Pages
S201-S213
ISSN
  • 0022-2844 (ISSN-L)
  • 1432-1432
DOI
10.1007/s00239-003-0028-x
OpenAlex
W2146042132
Cited by
102
References
83
Citations by year
2024: 1 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 5 · 2019: 2 · 2018: 1 · 2016: 1 · 2015: 4 · 2014: 4 · 2013: 3 · 2012: 8
FWCI
10.33
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Molecular Evolution (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, other-oa)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Plant Diversity and Evolution
Keywords
divergence time estimation, rodents, mammals, ADRA2B, interphotoreceptor retinoid-binding protein, von Willebrand factor, fossil calibration, placentals
MeSH terms
Animals, Calibration, DNA-Binding Proteins, Fossils, Mammals, Models, Genetic, Nuclear Proteins, Paleontology, Phylogeny, Rodentia, Time, Genetic Variation, von Willebrand Factor, Likelihood Functions, Receptors, Adrenergic, alpha-2, Evolution, Molecular

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