Abstract
Mimopidae is a monotypic family of scolopendromorph centipedes known only by its holotype until the recent rediscovery of Mimops orientalis from Qinling Mountain, China. Here we generated novel transcriptomic data for M. orientalis and analyzed them in conjunction with other scolopendromorph and centipede transcriptomes. We used a diversity of approaches, including analyzing three matrices with different occupancy thresholds and a diversity of phylogenetic methods, including concatenation and coalescent-based approaches. All our analyses supported a phylogenetic position of Mimopidae as sister group to all other scolopendromorphs with maximal support. This position contrasts with previous Sanger data for Mimopidae but provide stability to the scolopendromorph phylogeny, showing that the loss of eyes occurred in the common ancestor of the clade leading to Cryptopidae, Plutoniumidae and Scolopocryptopidae. Our analysis thus resolves a longstanding question in centipede evolution while providing a stable relationship for the least studied family of centipedes to date.
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Data availability
Raw reads are publicly available in SRA archives (https://www.ncbi.nlm.nih.gov/sra); assembled transcriptomes, data matrices, analysis files and resulting tree files are available in the Harvard Dataverse (https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi:10.7910/DVN/IJYRNB).
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Acknowledgements
We thank Mr Jiazhou Lu for help in fieldwork. Collections were made under the permit of the Fourth National Survey Chinese Material Medical Resources. Greg Edgecombe and an anonymous reviewer provided thorough comments that helped us refine this manuscript.
Funding
This work has been supported by the National Natural Science Foundation of China (Grant #82073972) and by internal funds from the Museum of Comparative Zoology and the Harvard Faculty of Arts and Sciences.
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All authors designed the study; CJ collected specimens and generated novel transcriptomic data; LRB analyzed the data; GG and LRB wrote the first draft; All authors revised the final draft.
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Benavides, L.R., Jiang, C. & Giribet, G. Mimopidae is the sister group to all other scolopendromorph centipedes (Chilopoda, Scolopendromorpha): a phylotranscriptomic approach. Org Divers Evol 21, 591–598 (2021). https://doi.org/10.1007/s13127-021-00502-2
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DOI: https://doi.org/10.1007/s13127-021-00502-2