The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.
Initial Diversification of Living Amphibians Predated the Breakup of Pangaea
Open accessAbstract
The origin and divergence of the three living orders of amphibians (Anura, Caudata, Gymnophiona) and their main lineages are one of the most hotly debated topics in vertebrate evolution. Here, we present a robust molecular phylogeny based on the nuclear RAG1 gene as well as results from a variety of alternative independent molecular clock calibrations. Our analyses suggest that the origin and early divergence of the three living amphibian orders dates back to the Palaeozoic or early Mesozoic, before the breakup of Pangaea, and soon after the divergence from lobe-finned fishes. The resulting new biogeographic scenario, age estimate, and the inferred rapid divergence of the three lissamphibian orders may account for the lack of fossils that represent plausible ancestors or immediate sister taxa of all three orders and the heretofore paradoxical distribution of some amphibian fossil taxa. Furthermore, the ancient and rapid radiation of the three lissamphibian orders likely explains why branch lengths connecting their early nodes are particularly short, thus rendering phylogenetic inference of implicated relationships especially difficult.
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Cites
Evolutionary trees from DNA sequences: A maximum likelihood approach.
Felsenstein, J. (1981) · Journal of Molecular Evolution · doi:10.1007/bf01734359 · Cited by 14,571
A molecular timescale for vertebrate evolution
Kumar, S., & Hedges, S. B. (1998) · Nature · doi:10.1038/31927 · Cited by 1,936
Estimating the rate of evolution of the rate of molecular evolution
Thorne, J. L., Kishino, H., & Painter, I. S. (1998) · Molecular Biology and Evolution · doi:10.1093/oxfordjournals.molbev.a025892 · Cited by 1,317
Divergence time and evolutionary rate estimation with multilocus data.
Thorne, J. L., & Kishino, H. (2002) · Systematic Biology · doi:10.1080/10635150290102456 · Cited by 962 · cited 2×
“Divergence times were determined using a Bayesian approach that incorporates variation of rates of evolution among genes and among lineages (Thorne et al. 1998; Kishino et al. 2001; Thorne and Kishino 2002).”
Reading the entrails of chickens: molecular timescales of evolution and the illusion of precision
Graur, D., & Martin, W. (2004) · Trends in Genetics · doi:10.1016/j.tig.2003.12.003 · Cited by 669
The timing of eukaryotic evolution: Does a relaxed molecular clock reconcile proteins and fossils?
Douzery, E. J. P., Snell, E. A., Bapteste, E., Delsuc, F., & Philippe, H. (2004) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0403984101 · Cited by 638 · cited 2×
“Limited taxon sampling or calibration points can seriously affect molecular dating estimates (Douzery et al. 2004).”
Performance of a divergence time estimation method under a probabilistic model of rate evolution.
Kishino, H., Thorne, J. L., & Bruno, W. J. (2001) · Molecular Biology and Evolution · doi:10.1093/oxfordjournals.molbev.a003811 · Cited by 633 · cited 2×
“The Markov chain Monte Carlo (MCMC) method was employed to approximate both prior and posterior distributions (Kishino et al. 2001).”
Nei, M., Xu, P., & Glazko, G. (2001) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.051611498 · Cited by 329
Benton, M. J., & Ayala, F. J. (2003) · Science · doi:10.1126/science.1077795 · Cited by 252
The Power of Relative Rates Tests Depends on the Data
Bromham, L., Penny, D., Rambaut, A., & Hendy, M. D. (2000) · Journal of Molecular Evolution · doi:10.1007/s002399910034 · Cited by 168
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Jetz, W., & Pyron, R. A. (2018) · Nature Ecology & Evolution · doi:10.1038/s41559-018-0515-5 · Cited by 607
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Irisarri, I., Baurain, D., Brinkmann, H., Delsuc, F., Sire, J.-Y., Kupfer, A., Petersen, J., Jarek, M., Meyer, A., Vences, M., et al. (2017) · Nature Ecology & Evolution · doi:10.1038/s41559-017-0240-5 · Cited by 299
Self-citationConstraints on the timescale of animal evolutionary history
Benton, M., Donoghue, P., Vinther, J., Asher, R., Friedman, M., & Near, T. (2015) · Palaeontologia Electronica · doi:10.26879/424 · Cited by 284
Sexual size dimorphism in birds
Székely, T., Lislevand, T., & Figuerola, J. (2007) · Sex, Size and Gender Roles · doi:10.1093/acprof:oso/9780199208784.003.0004 · Cited by 160
Metadata
- Authors
- San Mauro, D., Vences, M., Alcobendas, M., Zardoya, R., & Meyer, A.
- Venue
- The American Naturalist
- Publisher
- University of Chicago Press
- Published
- 2005-05
- Volume
- 165
- Issue
- 5
- Pages
- 590-599
- ISSN
- 0003-0147 (ISSN-L)
- 1537-5323
- OpenAlex
- W2218076246
- Cited by
- 245
- References
- 11
- FWCI
- 22.63
- Type
- journal article
- Language
- en
- Open access
- green
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- San Mauro, D., Vences, M., Alcobendas, M., Zardoya, R., & Meyer, A. (2005). Initial Diversification of Living Amphibians Predated the Breakup of Pangaea. The American Naturalist. https://doi.org/10.1086/429523
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