Taxonomic status of Euphylliidae corals in Peninsular Malaysia based on morphological structures and phylogenetic analyses using mitochondrial COI gene

Akmal, Khodzori Fikri; Saad, Shahbudin; Hadry, N. Noor Faizul; ‘Ulwan, Ku Sulong Ku Abdullah; Amira, Mat Zain Khairul

doi:10.1134/s1063074017020055

Cited by 3 publications

(7 citation statements)

References 17 publications

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“…Euphyllia cristata has the same polyp shape as E. glabrescens, but it is distinct from E. glabrescens in having relatively shorter polyps and an exsert primary septa, which can easily be observed when the polyps retract in the field. Given the polyp shape and polyp length of E. cristata, we predict from our inferences from the phylogeny presented here that E. cristata will cluster under group V-C. As the present study is undergoing review, our prediction has been confirmed with the recently published work of Akmal et al (2017) , that also made use of the same universal primers from Lin et al (2011) , which were also utilized in the present study. Euphyllia paraglabrescens and E. baliensis, on the other hand, are predicted to cluster with the Fimbriaphyllia group on account of having short polyps.…”

Section: Discussionsupporting

confidence: 81%

Resurrecting a subgenus to genus: molecular phylogeny ofEuphylliaandFimbriaphyllia(order Scleractinia; family Euphyllidae; clade V)

Luzon

Lin

Ablan-Lagman

et al. 2017

PeerJ

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BackgroundThe corallum is crucial in building coral reefs and in diagnosing systematic relationships in the order Scleractinia. However, molecular phylogenetic analyses revealed a paraphyly in a majority of traditional families and genera among Scleractinia showing that other biological attributes of the coral, such as polyp morphology and reproductive traits, are underutilized. Among scleractinian genera, the Euphyllia, with nine nominal species in the Indo-Pacific region, is one of the groups that await phylogenetic resolution. Multiple genetic markers were used to construct the phylogeny of six Euphyllia species, namely E. ancora, E. divisa, E. glabrescens, E. paraancora, E. paradivisa, and E. yaeyamaensis. The phylogeny guided the inferences on the contributions of the colony structure, polyp morphology, and life history traits to the systematics of the largest genus in Euphyllidae (clade V) and, by extension, to the rest of clade V.ResultsAnalyses of cytochrome oxidase 1 (cox1), cytochrome b (cytb), and β-tubulin genes of 36 colonies representing Euphyllia and a confamilial species, Galaxea fascicularis, reveal two distinct groups in the Euphyllia that originated from different ancestors. Euphyllia glabrescens formed a separate group. Euphyllia ancora, E. divisa, E. paraancora, E. paradivisa, and E. yaeyamaensis clustered together and diverged from the same ancestor as G. fascicularis. The 3′-end of the cox1 gene of Euphyllia was able to distinguish morphospecies.DiscussionSpecies of Euphyllia were traditionally classified into two subgenera, Euphyllia and Fimbriaphyllia, which represented a dichotomy on colony structure. The paraphyletic groups retained the original members of the subgenera providing a strong basis for recognizing Fimbriaphyllia as a genus. However, colony structure was found to be a convergent trait between Euphyllia and Fimbriaphyllia, while polyp shape and length, sexuality, and reproductive mode defined the dichotomy better. Species in a genus are distinguished by combining polyp morphology and colony form. The cluster of E. glabrescens of the Euphyllia group is a hermaphroditic brooder with long, tubular tentacles with knob-like tips, and a phaceloid colony structure. The Fimbriaphyllia group, with F. paraancora, F. paradivisa, F. ancora, F. divisa, and F. yaeyamaensis, are gonochoric broadcast spawners with short polyps, mixed types of tentacle shapes, and a phaceloid or flabello-meandroid skeleton. Soft-tissue morphology of G. fascicularis and Ctenella chagius were found to be consistent with the dichotomy.ConclusionsThe paraphyly of the original members of the previous subgenera justify recognizing Fimbriaphyllia as a genus. The integrated approach demonstrates that combining polyp features, reproductive traits, and skeletal morphology is of high systematic value not just to Euphyllia and Fimbriaphyllia but also to clade V; thus, laying the groundwork for resolving the phylogeny of clade V.

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Section: Discussionsupporting

confidence: 81%

Resurrecting a subgenus to genus: molecular phylogeny ofEuphylliaandFimbriaphyllia(order Scleractinia; family Euphyllidae; clade V)

Luzon

Lin

Ablan-Lagman

et al. 2017

PeerJ

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“…For the phylogenetic analyses, our newly generated sequences were aligned with Euphylliidae sequences from previous studies (Romano & Palumbi, 1996;Romano & Cairns, 2000;Chen et al, 2002;Fukami et al, 2008;Barbeitos et al, 2010;Lin et al, 2011;Niu et al, 2016;Akmal et al, 2017;Chuang et al, 2017) and several other representatives of the "Complex" clade downloaded from GenBank (supplementary table S2). We did not include coi sequences of euphylliids published by Luzon et al (2017Luzon et al ( , 2018, notably including some species not analysed in this study such as Fimbriaphyllia paraancora (Veron, 1990) and Fimbriaphyllia yaeyamensis (Shirai, 1990), because the coi regions targeted by Luzon et al (2017Luzon et al ( , 2018 and in our study overlapped only by about 50 bp.…”

Section: Molecular Analysesmentioning

confidence: 99%

“…On the basis of these molecular results, Budd et al (2012) re-organised the family Euphylliidae to include the members of clade V sensu Fukami et al (2008). Subsequently, Luzon et al (2017Luzon et al ( , 2018 found that representatives of Euphyllia were split in two main molecular lineages (see also Fukami et al, 2008;Lin et al, 2011;Akmal et al, 2017). Using a combination of molecular, morphological (skeleton and polyp morphology), and reproductive data, Luzon et al (2017) revised Euphyllia to consist of four species, namely E. glabrescens, E. baliensis, E. cristata, and E. paraglabrescens, and moved the other five species of Euphyllia into Fimbriaphyllia.…”

Section: Taxonomymentioning

confidence: 99%

“…Conversely, in the "Robust" group, Dendrogyra, Dichocoenia, Eusmilia, and Meandrina were nested together in clade xii sensu Fukami et al (2008), corresponding to Meandrinidae (Fukami et al, 2008;Barbeitos et al, 2010;Budd et al, 2012;Kitahara et al, 2016). Within the "Robust" clade, Blastomussa Wells, 1968, Nemenzophyllia, Physogyra, and Plerogyra were recovered in clade xiv sensu Fukami et al (2008) and transferred to Plerogyridae Rowlett, 2020 (see Fukami et al, 2008;Huang, 2012;Arrigoni et al, 2012;Benzoni et al, 2014;Kitahara et al, 2016;Akmal et al, 2017;Rowlett, 2020). Based on this data set, Ctenella and Galaxea were moved to Euphylliidae by Budd et al (2012), while Gyrosmilia, Montigyra, and Simplastrea were also transferred to the family despite the absence of molecular evidence.…”

Section: Introductionmentioning

confidence: 99%

“…Euphyllia, the type genus of the family, clustered with Ctenella, Fimbriaphyllia, and Galaxea in clade V sensu Fukami et al (2008) within the "Complex" group (Fukami et al, 2008;Huang, 2012;Kitahara et al, 2016; table 1 Historical changes in the systematics of the genera ascribed to Euphylliidae. Akmal et al, 2017;Luzon et al, 2017Luzon et al, , 2018. Conversely, in the "Robust" group, Dendrogyra, Dichocoenia, Eusmilia, and Meandrina were nested together in clade xii sensu Fukami et al (2008), corresponding to Meandrinidae (Fukami et al, 2008;Barbeitos et al, 2010;Budd et al, 2012;Kitahara et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Phylogenetics and taxonomy of the scleractinian coral family Euphylliidae

et al. 2023

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The family Euphylliidae consists of reef-building zooxanthellate scleractinian corals distributed across the Indo-Pacific. Seven extant genera comprising a total of 22 valid species are currently recognised. Recent studies have re-organised the taxonomy of the family at the genus level based on molecular and morphological data, including a comprehensive revision of Euphyllia and the resurrection of Fimbriaphyllia. Here, three mitochondrial loci (coi, 12S rRNA, and 16S rRNA) were sequenced and morphological examinations were conducted at three scales (macro/micromorphology and microstructure of the skeleton, and polyp morphology) to study the phylogeny and taxonomy of Euphylliidae. We analysed a total of 11 valid species collected from seven Indo-Pacific localities. The monotypic genus Coeloseris, currently in Agariciidae, was also investigated since previous molecular data suggested a close relationship with the Euphylliidae. Molecular and morphological phylogenetic trees were broadly concordant in the definition of genus-level clades. All analysed genera, i.e., Ctenella, Euphyllia, Fimbriaphyllia, Galaxea, and Gyrosmilia, were reciprocally monophyletic based on molecular results. Coeloseris was nested within the family and, therefore, is formally moved into Euphylliidae. Updated morphological diagnoses are provided for each investigated genus. This study further demonstrated that a phylogenetic classification of scleractinian corals can be achieved by applying a combined morpho-molecular approach. Finally, we encourage phylogenetic and taxonomic studies of the euphylliid taxa not yet analysed molecularly, such as the monotypic genera Montigyra and Simplastrea.

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Changes of scientific names of the scleractinian corals until 2023

FUKAMI,

Yuko

2023

Nihon Sangosho Gakkaishi

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Taxonomic classification of the scleractinian corals underwent major revisions from 2012 to 2014, focusing on the former families Mussidae and Faviidae. Since then, changes in scientific names due to the taxonomic revisions of many other corals have been also reported every year. Especially, Rowlett (2020) reported taxonomic revisions of many families and genera of corals. Thus, in the current situation where the taxonomic classification is changing rapidly, coral researchers need to update the scientific names they use. However, it is difficult for researchers who are not deeply involved in taxonomy to spend time on this task. Therefore, in this article, we introduce the main scleractinian corals at the species rank and the higher taxonomic groups that have undergone the changes of the scientific names due to taxonomic revisions since 2016.

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Taxonomic status of Euphylliidae corals in Peninsular Malaysia based on morphological structures and phylogenetic analyses using mitochondrial COI gene

Cited by 3 publications

References 17 publications

Resurrecting a subgenus to genus: molecular phylogeny ofEuphylliaandFimbriaphyllia(order Scleractinia; family Euphyllidae; clade V)

Resurrecting a subgenus to genus: molecular phylogeny ofEuphylliaandFimbriaphyllia(order Scleractinia; family Euphyllidae; clade V)

Phylogenetics and taxonomy of the scleractinian coral family Euphylliidae

Changes of scientific names of the scleractinian corals until 2023

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