ArticleBMC evolutionary biology2009
Seven new dolphin mitochondrial genomes and a time-calibrated phylogeny of whales.
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 40 papers, 1 of them a synthesis that pooled it.
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40 citing papers in PubMed, 1 synthesis or guideline pooled it, 124 citations in OpenAlex.
- Pooled it
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- Differential decay of multiple environmental nucleic acid components.Scientific reports · 2025Article
- Low Heterozygosity and Historical Bottleneck Effect Depicted From the Genome Assembly of the Indus River Dolphin (Ecology and evolution · 2025Article
- Mitochondrial genome of a Bolivian River Dolphin (Mitochondrial DNA. Part B, Resources · 2025Article
- Ancient dolphin genomes reveal rapid repeated adaptation to coastal waters.Nature communications · 2023Article
- Gapless genome assembly of East Asian finless porpoise.Scientific data · 2022Article
- Mitochondrial diversity and inter-specific phylogeny among dolphins of the genus Stenella in the Southwest Atlantic Ocean.PloS one · 2022Article
- The T Cell Receptor (TRB) Locus inGenes · 2021Article
- Another polymorphic mitochondrial genome ofMitochondrial DNA. Part B, Resources · 2021Article
- Phylogenomic Resolution of the Cetacean Tree of Life Using Target Sequence Capture.Systematic biology · 2020Article
- Multilocus phylogeny and cryptic diversity of white-toothed shrews (Mammalia, Eulipotyphla, Crocidura) in China.BMC evolutionary biology · 2020Article
- Description of a new species of beaked whale (Berardius) found in the North Pacific.Scientific reports · 2019Article
- Whole Genome Sequencing of Chinese White Dolphin (Marine drugs · 2019Article
- Barcoding the largest animals on Earth: ongoing challenges and molecular solutions in the taxonomic identification of ancient cetaceans.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2016Review
- Phylogenomics of a rapid radiation: is chromosomal evolution linked to increased diversification in north american spiny lizards (Genus Sceloporus)?BMC evolutionary biology · 2016Article
- Article
- Initial Evidence for Adaptive Selection on the NADH Subunit Two of Freshwater Dolphins by Analyses of Mitochondrial Genomes.PloS one · 2015Article
- Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe phylogeny of Cetacea (whales) is not fully resolved with substantial support. The ambiguous and conflicting results of multiple phylogenetic studies may be the result of the use of too little data, phylogenetic methods that do not adequately capture the complex nature of DNA evolution, or both. In addition, there is also evidence that the generic taxonomy of Delphinidae (dolphins) underestimates its diversity. To remedy these problems, we sequenced the complete mitochondrial genomes of seven dolphins and analyzed these data with partitioned Bayesian analyses. Moreover, we incorporate a newly-developed "relaxed" molecular clock to model heterogenous rates of evolution among cetacean lineages.
resultsThe "deep" phylogenetic relationships are well supported including the monophyly of Cetacea and Odontoceti. However, there is ambiguity in the phylogenetic affinities of two of the river dolphin clades Platanistidae (Indian River dolphins) and Lipotidae (Yangtze River dolphins). The phylogenetic analyses support a sister relationship between Delphinidae and Monodontidae + Phocoenidae. Additionally, there is statistically significant support for the paraphyly of Tursiops (bottlenose dolphins) and Stenella (spotted dolphins).
conclusionOur phylogenetic analysis of complete mitochondrial genomes using recently developed models of rate autocorrelation resolved the phylogenetic relationships of the major Cetacean lineages with a high degree of confidence. Our results indicate that a rapid radiation of lineages explains the lack of support the placement of Platanistidae and Lipotidae. Moreover, our estimation of molecular divergence dates indicates that these radiations occurred in the Middle to Late Oligocene and Middle Miocene, respectively. Furthermore, by collecting and analyzing seven new mitochondrial genomes, we provide strong evidence that the delphinid genera Tursiops and Stenella are not monophyletic, and the current taxonomy masks potentially interesting patterns of morphological, physiological, behavioral, and ecological evolution.
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