Evolutionary biogeography of the reef-building coral genus Galaxea across the Indo-Pacific ocean.
Name:
evolutionary_1-s2.0-S1055790320301779-main.pdf
Size:
3.489Mb
Format:
PDF
Description:
Accepted manuscript
Type
ArticleAuthors
Wepfer, Patricia HNakajima, Yuichi
Sutthacheep, Makamas
Radice, Veronica Z
Richards, Zoe
Ang, Put
Terraneo, Tullia Isotta

Sudek, Mareike
Fujimura, Atsushi
Toonen, Robert J
Mikheyev, Alexander S
Economo, Evan P
Mitarai, Satoshi
KAUST Department
Marine Science ProgramMarine Science
Biological and Environmental Sciences and Engineering (BESE) Division
Date
2020-07-09Online Publication Date
2020-07-09Print Publication Date
2020-10Embargo End Date
2021-07-12Submitted Date
2019-08-09Permanent link to this record
http://hdl.handle.net/10754/664252
Metadata
Show full item recordAbstract
Stony corals (Scleractinia) form the basis for some of the most diverse ecosytems on Earth, but we have much to learn about their evolutionary history and systematic relationships. In order to improve our understanding of species in corals we here investigated phylogenetic relationships between morphologically defined species and genetic lineages in the genus Galaxea (Euphyllidae) using a combined phylogenomic and phylogeographic approach. Previous studies revealed the nominal species G. fascicularis included three genetically well-differentiated lineages (L, S & L+) in the western Pacific, but their distribution and relationship to other species in the genus was unknown. Based on genomic (RAD-seq) and mitochondrial sequence data (non-coding region between cytb and ND2) we investigated whether the morphological taxa represent genetically coherent entities and what is the phylogenetic relationship and spatial distribution of the three lineages of G. fascicularis throughout the observed species range. Using the RAD-seq data, we find that the genus Galaxea is monophyletic and contains three distinct clades: an Indo-Pacific, a Pacific, and a small clade restricted to the Chagos Archipelago. The three lineages of G. fascicularis were associated with different RAD-seq clades, with the 'L' lineage showing some morphological distinction from the other two lineages (larger more asymmetrical polyps). In addition to these, three more genetic lineages in G. fascicularis may be distinguished - a Chagossian, an Ogasawaran, and one from the Indian-Red Sea. Among nominal taxa for which we have multiple samples, G. horrescens was the only monophyletic species. The mitochondrial non-coding region is highly conserved apart of the length polymorphism used to define L, S & L+ lineages and lacks the power to distinguish morphological and genetic groups resolved with genomic RAD-sequencing. The polyphyletic nature of most species warrants a careful examination of the accepted taxonomy of this group with voucher collections and their comparison to type specimens to resolve species boundaries. Further insight to the speciation process in corals will require international cooperation for the sharing of specimens to facilitate scientific discovery.Citation
Wepfer, P. H., Nakajima, Y., Sutthacheep, M., Radice, V. Z., Richards, Z., Ang, P., … Mitarai, S. (2020). Evolutionary biogeography of the reef-building coral genus Galaxea across the Indo-Pacific ocean. Molecular Phylogenetics and Evolution, 106905. doi:10.1016/j.ympev.2020.106905Publisher
Elsevier BVPubMed ID
32652124Additional Links
https://linkinghub.elsevier.com/retrieve/pii/S1055790320301779Relations
Is Supplemented By:- [Dataset]
Wepfer, P., Wepfer, P. H., Nakajima, Y., Sutthacheep, M., Radice, V. Z., Richards, Z., Ang, P., Terraneo, T., Sudek, M., Fujimura, A., Toonen, R. J., Mikheyev, A. S., Economo, E. P., & Mitarai, S. (2020). Evolutionary biogeography of the reef-building coral genus Galaxea across the Indo-Pacific ocean (Version 2) [Data set]. Dryad. https://doi.org/10.5061/DRYAD.VDNCJSXSR. DOI: 10.5061/dryad.vdncjsxsr Handle: 10754/667003
ae974a485f413a2113503eed53cd6c53
10.1016/j.ympev.2020.106905
Scopus Count
Related articles
- Hydroids (Cnidaria, Hydrozoa) from Mauritanian Coral Mounds.
- Authors: Gil M, Ramil F, AgÍs JA
- Issue date: 2020 Nov 16
- Resurrection of Indian Ocean humbug damselfish, Dascyllus abudafur (Forsskål) from synonymy with its Pacific Ocean sibling, Dascyllus aruanus (L.).
- Authors: Borsa P, Sembiring A, Fauvelot C, Chen WJ
- Issue date: 2014 Dec
- Trans-Pacific RAD-Seq population genomics confirms introgressive hybridization in Eastern Pacific Pocillopora corals.
- Authors: Combosch DJ, Vollmer SV
- Issue date: 2015 Jul
- Phylogeography of the sergeants Abudefduf sexfasciatus and A. vaigiensis reveals complex introgression patterns between two widespread and sympatric Indo-West Pacific reef fishes.
- Authors: Bertrand JAM, Borsa P, Chen WJ
- Issue date: 2017 May
- Phylogeny of deepwater snappers (Genus Etelis) reveals a cryptic species pair in the Indo-Pacific and Pleistocene invasion of the Atlantic.
- Authors: Andrews KR, Williams AJ, Fernandez-Silva I, Newman SJ, Copus JM, Wakefield CB, Randall JE, Bowen BW
- Issue date: 2016 Jul