Phylogenomics resolves timing and patterns in the evolution of Australasian Cerambycinae (Coleoptera: Cerambycidae), and reveals new insights into the subfamily-level classification and historical biogeography of longhorn beetles.

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Publisher: Elsevier B.V.
Document Type: Report
Length: 437 words

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Keywords Generic relationships; Tribal classification; Divergence time; Dorcasominae Highlights * Generic phylogenetic relationships of Australia and New Zealand Cerambycinae is presented. * Australasian Cerambycinae are deeply divided into two clades which can be separated by a distinct antennal character. * The previously recognized subfamily Dorcasominae is downgraded as tribe Dorcasomini in subfamily Cerambycinae. Abstract Cerambycinae is the second-largest subfamily of longhorn beetles in the Southern Hemisphere. The phylogeny of Cerambycinae is poorly known, resulting in a highly artificial tribal-level classification and a largely speculative evolutionary history. We reconstructed the phylogenetic relationships of Cerambycinae at the generic level using anchored hybrid enrichment data from hundreds of nuclear genes, with a primary focus on the extraordinarily diverse faunas of Australia and New Zealand. We also estimated divergence times by incorporating fossil calibrations in our analyses. We identified two main clades within Cerambycinae, which can also be separated morphologically by a distinct type of antennal foramen. We recovered a Late Jurassic origin of crown Cerambycinae. Dorcasominae, which was newly found to have representatives in Australia, was notably derived from within Cerambycinae. We recovered two independent origins of Australian Cerambycinae: one clade originated in the Early Cretaceous and is likely endemic to the Southern Hemisphere, while the other clade appears to have immigrated to Australia, perhaps from the Northern Hemisphere. Within the Australian lineages were multiple independent origins of New Zealand taxa, all of which are relative host-plant generalists. Tribal relationships and assignments are discussed, and based on our results, the following major nomenclatural acts were made: Dorcasominae Lacordaire, 1868 is downgraded to a tribe Dorcasomini of Cerambycinae Latreille, 1804; Neostenini Lacordaire, 1868 syn. nov. is treated as a junior synonym of Uracanthini Blanchard, 1851. Author Affiliation: (a) Australian National Insect Collection, CSIRO, Canberra, ACT, Australia (b) State Key Laboratory of Biocontrol, School of Ecology, Sun Yat-sen University, Guangzhou, China (c) Department of Biological Sciences, University of Memphis, Memphis, TN, USA (d) Center for Biodiversity Research, University of Memphis, Memphis, TN, USA (e) School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea (f) Research School of Biology, Australian National University, Canberra 2601, Australia (g) New Zealand Arthropod Collection, Manaaki Whenua -- Landcare Research, Auckland, New Zealand (h) Research Associate, Entomology, Australian Museum, Sydney, New South Wales, Australia * Corresponding authors at: Department of Biological Sciences, University of Memphis, Memphis, TN, USA (D.D. McKenna). Article History: Received 16 August 2021; Revised 12 February 2022; Accepted 5 April 2022 Byline: Mengjie Jin (a,b), Seunggwan Shin (c,d,e), Lauren G. Ashman (a,f), Richard A.B. Leschen (g), Andreas Zwick (a), Roger de Keyzer (h), Duane D. McKenna [] (c,d,*), Adam Slipinski [] (a,*)

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Gale Document Number: GALE|A703692410