Transoceanic Dispersal and Plate Tectonics Shaped Global Cockroach Distributions: Evidence from Mitochondrial Phylogenomics
Language English Country United States Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
29420807
DOI
10.1093/molbev/msy013
PII: 4827068
Knihovny.cz E-resources
- MeSH
- Phylogeny * MeSH
- Phylogeography MeSH
- Genome, Mitochondrial * MeSH
- Animal Distribution * MeSH
- Cockroaches genetics MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Following the acceptance of plate tectonics theory in the latter half of the 20th century, vicariance became the dominant explanation for the distributions of many plant and animal groups. In recent years, however, molecular-clock analyses have challenged a number of well-accepted hypotheses of vicariance. As a widespread group of insects with a fossil record dating back 300 My, cockroaches provide an ideal model for testing hypotheses of vicariance through plate tectonics versus transoceanic dispersal. However, their evolutionary history remains poorly understood, in part due to unresolved relationships among the nine recognized families. Here, we present a phylogenetic estimate of all extant cockroach families, as well as a timescale for their evolution, based on the complete mitochondrial genomes of 119 cockroach species. Divergence dating analyses indicated that the last common ancestor of all extant cockroaches appeared ∼235 Ma, ∼95 My prior to the appearance of fossils that can be assigned to extant families, and before the breakup of Pangaea began. We reconstructed the geographic ranges of ancestral cockroaches and found tentative support for vicariance through plate tectonics within and between several major lineages. We also found evidence of transoceanic dispersal in lineages found across the Australian, Indo-Malayan, African, and Madagascan regions. Our analyses provide evidence that both vicariance and dispersal have played important roles in shaping the distribution and diversity of these insects.
College of Plant Protection Southwest University Beibei Chongqing China
Department of Agriculture and Water Resources Cairns QLD Australia
Department of Biological Sciences National University of Singapore Singapore Singapore
Department of Entomology Purdue University West Lafayette IN
Faculty of Forestry and Wood Sciences Czech University of Life Sciences Prague Czech Republic
Okinawa Institute of Science and Technology Graduate University Tancha Onna son Okinawa Japan
School of Animal Biology University of Western Australia Perth WA Australia
School of Life and Environmental Sciences University of Sydney Sydney NSW Australia
School of Marine and Tropical Biology James Cook University Townsville QLD Australia
References provided by Crossref.org
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