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  • Title: Transcriptomic data recover a new superfamily-level phylogeny of Cucujiformia (Coleoptera, Polyphaga).
    Author: Yuan ML, Chen WT, Zhang QL, Li M, Zhang L, Tang PA.
    Journal: Mol Phylogenet Evol; 2023 Feb; 179():107679. PubMed ID: 36539017.
    Abstract:
    Cucujiformia, the largest taxon in the order Coleoptera, exhibits extraordinary morphological, ecological, and behavioral diversity. This infraorder is currently divided into seven superfamilies, but considerably incongruent relationships among superfamilies have been reported by recent phylogenomic studies. Here, we combined the 21 newly sequenced transcriptomes representing six superfamilies with nine previously published cucujiform genomes/transcriptomes to elucidate the phylogeny and evolution of Cucujiformia. The monophyly of each of five superfamilies were consistently supported by all phylogenetic analyses based on the twelve datasets (matrix occupancy, amino acid and nucleotide data) and the two analytical methods (maximum likelihood method and Bayesian inference). Both the amino acid datasets and the RY recoded nucleotide datasets recovered the monophyly of Cucujoidea. Topology test results statistically supported the following robust superfamily-level phylogeny in Cucujiformia: (Coccinelloidea, (Cleroidea, (Tenebrionoidea, (Cucujoidea, (Chrysomeloidea, Curculionoidea))))). Our divergence time analyses recovered a Permian origin of Cucujiformia and a Jurassic-Cretaceous origin of most superfamilies. The diversification of phytophagous beetles that occurred in the Cretaceous can be attributed to its co-evolution with angiosperms, supporting the hypothesis of a Cretaceous Terrestrial Revolution.
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