The evolutionary history of termites as inferred from 66 mitochondrial genomes

Thomas Bourguignon, Nathan Lo, Stephen L. Cameron, Jan Šobotn�k, Yoshinobu Hayashi, Shuji Shigenobu, Dai Watanabe, Yves Roisin, Toru Miura, Theodore A. Evans

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128 Citations (Scopus)

Abstract

Termites have colonized many habitats and are among the most abundant animals in tropical ecosystems, which they modify considerably through their actions. The timing of their rise in abundance and of the dispersal events that gave rise to modern termite lineages is not well understood. To shed light on termite origins and diversification, we sequenced the mitochondrial genome of 48 termite species and combined them with 18 previously sequenced termite mitochondrial genomes for phylogenetic and molecular clock analyses using multiple fossil calibrations. The 66 genomes represent most major clades of termites. Unlike previous phylogenetic studies based on fewer molecular data, our phylogenetic tree is fully resolved for the lower termites. The phylogenetic positions of Macrotermitinae and Apicotermitinae are also resolved as the basal groups in the higher termites, but in the crown termitid groups, including Termitinae + Syntermitinae +Nasutitermitinae + Cubitermitinae, the position of some nodes remains uncertain. Our molecular clock tree indicates that the lineages leading to termites and Cryptocercus roaches diverged 170 Ma (153-196 Ma 95% confidence interval [CI]), that modern Termitidae arose 54 Ma (46-66 Ma 95% CI), and that the crown termitid group arose 40 Ma (35-49 Ma 95% CI). This indicates that the distribution of basal termite clades was influenced by the final stages of the breakup of Pangaea. Our inference of ancestral geographic ranges shows that the Termitidae, which includesmore than 75% of extant termite species, most likely originated in Africa or Asia, and acquired their pantropical distribution after a series of dispersal and subsequent diversification events.

Original languageEnglish
Pages (from-to)406-421
Number of pages16
JournalMolecular Biology and Evolution
Volume32
Issue number2
DOIs
Publication statusPublished - 2015 Feb 1
Externally publishedYes

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Keywords

  • Biogeography
  • Isoptera
  • Molecular clock
  • Molecular phylogeny

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

Cite this

Bourguignon, T., Lo, N., Cameron, S. L., Šobotn�k, J., Hayashi, Y., Shigenobu, S., Watanabe, D., Roisin, Y., Miura, T., & Evans, T. A. (2015). The evolutionary history of termites as inferred from 66 mitochondrial genomes. Molecular Biology and Evolution, 32(2), 406-421. https://doi.org/10.1093/molbev/msu308