Abstract
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 relationships. 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.
Original language | English |
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Pages (from-to) | 763-767 |
Number of pages | 5 |
Journal | Science |
Volume | 346 |
Issue number | 6210 |
DOIs | |
Publication status | Published - 7 Nov 2014 |
Externally published | Yes |