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Title: Phylogeography of Blue Corals (Genus Heliopora) Across the Indo-West Pacific
Authors: Taninaka, Hiroki
Maggioni, Davide
Seveso, Davide
Huang, Danwei 
Townsend, Abram
Richards, Zoe T.
Tang, Sen-Lin
Wada, Naohisa
Kikuchi, Taisei
Yuasa, Hideaki
Kanai, Megumi
De Palmas, Stephane
Phongsuwan, Niphon
Yasuda, Nina
Keywords: coral reef
evolutionary relationships
single nucleotide polymorphism
species delimitation
species diversity
Issue Date: 13-Aug-2021
Publisher: Frontiers Media S.A.
Citation: Taninaka, Hiroki, Maggioni, Davide, Seveso, Davide, Huang, Danwei, Townsend, Abram, Richards, Zoe T., Tang, Sen-Lin, Wada, Naohisa, Kikuchi, Taisei, Yuasa, Hideaki, Kanai, Megumi, De Palmas, Stephane, Phongsuwan, Niphon, Yasuda, Nina (2021-08-13). Phylogeography of Blue Corals (Genus Heliopora) Across the Indo-West Pacific. Frontiers in Marine Science 8 : 714662. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Species delimitation of corals is one of the most challenging issues in coral reef ecology and conservation. Morphology can obscure evolutionary relationships, and molecular datasets are consistently revealing greater within-species diversity than currently understood. Most phylogenetic studies, however, have examined narrow geographic areas and phylogeographic expansion is required to obtain more robust interpretations of within- and among- species relationships. In the case of the blue coral Heliopora, there are currently two valid species (H. coerulea and H. hiberniana) as evidenced by integrated genetic and morphological analyses in northwestern Australia. There are also two distinct genetic lineages of H. coerulea in the Kuroshio Current region that are morphologically and reproductively different from each other. Sampling from all Heliopora spp. across the Indo-Pacific is essential to obtain a more complete picture of phylogeographic patterns. To examine phylogenetic relationships within the genus Heliopora, we applied Multiplexed inter simple sequence repeat (ISSR) Genotyping by sequencing (MIG-seq) on > 1287 colonies across the Indo-West Pacific. Maximum likelihood phylogenetic trees indicated the examined Heliopora samples comprise three genetically distinct groups: H. coerulea group, H. hiberniana group, and a new undescribed Heliopora sp. group with further subdivisions within each group. Geographic structuring is evident among the three species with H. hiberniana group found in the Indo-Malay Archipelago and biased toward the Indian Ocean whilst Heliopora sp. was only found in the Kuroshio Current region and Singapore, indicating that this taxon is distributed in the western Pacific and the Indo-Malay Archipelago. Heliopora coerulea has a wider distribution, being across the Indian Ocean and western Pacific. This study highlights the effectiveness of phylogenetic analysis using genome-wide markers and the importance of examining populations across their distribution range to understand localized genetic structure and speciation patterns of corals. © Copyright © 2021 Taninaka, Maggioni, Seveso, Huang, Townsend, Richards, Tang, Wada, Kikuchi, Yuasa, Kanai, De Palmas, Phongsuwan and Yasuda.
Source Title: Frontiers in Marine Science
ISSN: 2296-7745
DOI: 10.3389/fmars.2021.714662
Rights: Attribution 4.0 International
Appears in Collections:Staff Publications

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