Institute For Spezielle Zoologie Und Evolutionsbiologie Mit Phyletischem Museum Jena

Germany

Institute For Spezielle Zoologie Und Evolutionsbiologie Mit Phyletischem Museum Jena

Germany
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PubMed | University of Vienna, University of Florida, Hong Kong University of Science and Technology, University of Guadalajara and 25 more.
Type: Journal Article | Journal: Science (New York, N.Y.) | Year: 2014

Insects are the most speciose group of animals, but the phylogenetic relationships of many major lineages remain unresolved. We inferred the phylogeny of insects from 1478 protein-coding genes. Phylogenomic analyses of nucleotide and amino acid sequences, with site-specific nucleotide or domain-specific amino acid substitution models, produced statistically robust and congruent results resolving previously controversial phylogenetic relations hips. We dated the origin of insects to the Early Ordovician [~479 million years ago (Ma)], of insect flight to the Early Devonian (~406 Ma), of major extant lineages to the Mississippian (~345 Ma), and the major diversification of holometabolous insects to the Early Cretaceous. Our phylogenomic study provides a comprehensive reliable scaffold for future comparative analyses of evolutionary innovations among insects.

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