A molecular phylogeny of rose chafers (Coleoptera: Scarabaeidae: Cetoniinae) reveals a complex and concerted morphological evolution related to their flight mode
Language English Country United States Media print-electronic
Document type Journal Article
PubMed
27165937
DOI
10.1016/j.ympev.2016.05.012
PII: S1055-7903(16)30093-8
Knihovny.cz E-resources
- Keywords
- Cetoniinae, Coleoptera, Elytral base, Flight mode, Scarabaeidae, Systematics,
- MeSH
- Bayes Theorem MeSH
- Biological Evolution * MeSH
- Coleoptera classification genetics MeSH
- DNA chemistry isolation & purification metabolism MeSH
- Phylogeny MeSH
- Wings, Animal anatomy & histology MeSH
- Electron Transport Complex IV genetics MeSH
- RNA, Ribosomal, 16S genetics MeSH
- RNA, Ribosomal, 28S genetics MeSH
- Sequence Analysis, DNA MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- DNA MeSH
- Electron Transport Complex IV MeSH
- RNA, Ribosomal, 16S MeSH
- RNA, Ribosomal, 28S MeSH
Rose chafers (Cetoniinae) are a large group of flower visitors within the pleurostict Scarabaeidae that are characterized by their distinctive flight mode with nearly closed forewings. Despite their popularity, this is the first study to use molecular data to infer their phylogenetic relationships. We used partial gene sequences for 28S rRNA, cytochrome oxidase I (cox1) and 16S rRNA (rrnL) for 299 species, representing most recognized subfamilies of Scarabaeidae, including 125 species of Cetoniinae. Combined analyses using maximum parsimony, maximum likelihood and Bayesian inferences recovered Cetoniinae as monophyletic in all analyses, with the sister clade composed of Rutelinae and Dynastinae. Rutelinae was always recovered as paraphyletic with respect to Dynastinae. Trichiini sensu lato (s.l.) was recovered as a polyphyletic clade, while Cetoniini s.l. was recovered as paraphyletic. The inferred topologies were also supported by site bootstrapping of the ML trees. With the exception of Cremastochelini, most tribes of Cetoniinae were poly- or paraphyletic, indicating the critical need for a careful revision of rose chafer classification. Analysis of elytral base structure (including 11 scored characters) in the context of phylogeny, revealed a complex, concerted and rapid transformation of the single trait elements linked to a modified flight mode with closed elytra. This appears to be unlinked to the lateral sinuation of the elytra, which originated independently several times at later stages in the evolution of the group.
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