Phylogenomics resolves major relationships and reveals significant diversification rate shifts in the evolution of silk moths and relatives

Hamilton, C. A. ORCID: https://orcid.org/0000-0001-7263-0755, St Laurent, R. A. ORCID: https://orcid.org/0000-0001-6439-5249, Dexter, K. ORCID: https://orcid.org/0000-0002-5136-6083, Kitching, I. J. ORCID: https://orcid.org/0000-0003-4738-5967, Breinholt, J. W. ORCID: https://orcid.org/0000-0002-3867-2430, Zwick, A. ORCID: https://orcid.org/0000-0002-7532-1752, Timmermans, Martijn J. T. N. ORCID: https://orcid.org/0000-0002-5024-9053, Barber, J. R. ORCID: https://orcid.org/0000-0003-3084-2973 and Kawahara, A. Y. ORCID: https://orcid.org/0000-0002-3724-4610 (2019) Phylogenomics resolves major relationships and reveals significant diversification rate shifts in the evolution of silk moths and relatives. BMC Evolutionary Biology, 19 (1) , 182. ISSN 1471-2148 (Published online first) (doi:10.1186/s12862-019-1505-1)

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Abstract

Background:
Silkmoths and their relatives constitute the ecologically and taxonomically diverse superfamily Bombycoidea,which includes some of the most charismatic species of Lepidoptera. Despite displaying spectacular forms and diverse ecological traits, relatively little attention has been given to understanding their evolution and drivers of their diversity. To begin to address this problem, we created a new Bombycoidea-specific Anchored Hybrid Enrichment (AHE) probe set and sampled up to 571 loci for 117 taxa across all major lineages of the Bombycoidea, with a newly developed DNA extraction protocol that allows Lepidoptera specimens to be readily sequenced from pinned natural history collections.

Results:
The well-supported tree was overall consistent with prior morphological and molecular studies, although some taxa were misplaced. The bombycid Arotros Schaus was formally transferred to Apatelodidae. We identified important evolutionary patterns (e.g., morphology, biogeography, and differences in speciation and extinction), and our analysis of diversification rates highlights the stark increases that exist within the Sphingidae (hawkmoths) and Saturniidae (wild silkmoths).

Conclusions:
Our study establishes a backbone for future evolutionary, comparative, and taxonomic studies of Bombycoidea. We postulate that the rate shifts identified are due to the well-documented bat-moth“arms race”.Our research highlights the flexibility of AHE to generate genomic data from a wide range of museum specimens, both age and preservation method, and will allow researchers to tap into the wealth of biological data residing in natural history collections around the globe.

Item Type: Article
Keywords (uncontrolled): Research Article, Phylogenetics and phylogeography, Anchored Hybrid Enrichment, Targeted sequence capture, Phylogenomics, Bombycoidea, Lepidoptera, Natural history collections
Research Areas: A. > School of Science and Technology
Item ID: 27599
Notes on copyright: © The Author(s). 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated
Useful Links:
Depositing User: Martijn Timmermans
Date Deposited: 19 Sep 2019 08:32
Last Modified: 17 Sep 2020 15:33
URI: https://eprints.mdx.ac.uk/id/eprint/27599

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