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Maggioni D, Schuchert P, Ostrovsky AN, Schiavo A, Hoeksema BW, Pica D, Piraino S, Arrigoni R, Seveso D, Montalbetti E, Galli P, Montano S. Systematics and character evolution of capitate hydrozoans. Cladistics 2024; 40:107-134. [PMID: 38112464 DOI: 10.1111/cla.12567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/06/2023] [Accepted: 11/19/2023] [Indexed: 12/21/2023] Open
Abstract
Capitate hydrozoans are a morphologically and ecologically diverse hydrozoan suborder, currently including about 200 species. Being grouped in two clades, Corynida and Zancleida, these hydrozoans still show a number of taxonomic uncertainties at the species, genus and family levels. Many Capitata species established symbiotic relationships with other benthic organisms, including bryozoans, other cnidarians, molluscs and poriferans, as well as with planktonic dinoflagellates for mixotrophic relationships and with bacteria for thiotrophic ectosymbioses. Our study aimed at providing an updated and comprehensive phylogeny reconstruction of the suborder, at modelling the evolution of selected morphological and ecological characters, and at testing evolutionary relationships between the symbiotic lifestyle and the other characters, by integrating taxonomic, ecological and evolutionary data. The phylogenetic hypotheses here presented shed light on the evolutionary relationships within Capitata, with most families and genera being recovered as monophyletic. The genus Zanclea and family Zancleidae, however, were divided into four divergent clades, requiring the establishment of the new genus Apatizanclea and the new combinations for species in Zanclea and Halocoryne genera. The ancestral state reconstructions revealed that symbiosis arose multiple times in the evolutionary history of the Capitata, and that homoplasy is a common phenomenon in the group. Correlations were found between the evolution of symbiosis and morphological characters, such as the perisarc. Overall, our results highlighted that the use of genetic data and a complete knowledge of the life cycles are strongly needed to disentangle taxonomic and systematic issues in capitate hydrozoans. Finally, the colonization of tropical habitat appears to have influenced the evolution of a symbiotic lifestyle, playing important roles in the evolution of the group.
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Affiliation(s)
- Davide Maggioni
- Department of Biotechnology and Biosciences (BtBs), University of Milano-Bicocca, Milan, 20126, Italy
- Department of Earth and Environmental Science (DISAT), University of Milano-Bicocca, Milan, 20126, Italy
- Marine Research and Higher Education (MaRHE) Center, University of Milano-Bicocca, Faafu Magoodhoo Island, 12030, Maldives
| | | | - Andrew N Ostrovsky
- Department of Invertebrate Zoology, Faculty of Biology, Saint Petersburg State University, Saint Petersburg, 199034, Russia
- Department of Palaeontology, Faculty of Earth Sciences, Geography and Astronomy, University of Vienna, Vienna, 1090, Austria
| | - Andrea Schiavo
- Department of Electronics, Information and Bioengineering, Polytechnic University of Milan, Milan, 20133, Italy
| | - Bert W Hoeksema
- Marine Evolution and Ecology Group, Naturalis Biodiversity Center, Leiden, 2333 CR, The Netherlands
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, 9747 AG, The Netherlands
| | - Daniela Pica
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Calabria Marine Centre, Amendolara, 87071, Italy
| | - Stefano Piraino
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Lecce, 73100, Italy
- National Interuniversity Consortium for Marine Science (CoNISMa), Rome, 00196, Italy
- National Biodiversity Future Center (NBFC), Palermo, 90133, Italy
| | - Roberto Arrigoni
- Department of Biology and Evolution of Marine Organisms (BEOM), Genoa Marine Centre (GMC), Stazione Zoologica Anton Dohrn - National Institute of Marine Biology, Ecology and Biotechnology, Genoa, 16126, Italy
| | - Davide Seveso
- Department of Earth and Environmental Science (DISAT), University of Milano-Bicocca, Milan, 20126, Italy
- Marine Research and Higher Education (MaRHE) Center, University of Milano-Bicocca, Faafu Magoodhoo Island, 12030, Maldives
- National Biodiversity Future Center (NBFC), Palermo, 90133, Italy
| | - Enrico Montalbetti
- Department of Earth and Environmental Science (DISAT), University of Milano-Bicocca, Milan, 20126, Italy
- Marine Research and Higher Education (MaRHE) Center, University of Milano-Bicocca, Faafu Magoodhoo Island, 12030, Maldives
| | - Paolo Galli
- Department of Earth and Environmental Science (DISAT), University of Milano-Bicocca, Milan, 20126, Italy
- Marine Research and Higher Education (MaRHE) Center, University of Milano-Bicocca, Faafu Magoodhoo Island, 12030, Maldives
- National Biodiversity Future Center (NBFC), Palermo, 90133, Italy
| | - Simone Montano
- Department of Earth and Environmental Science (DISAT), University of Milano-Bicocca, Milan, 20126, Italy
- Marine Research and Higher Education (MaRHE) Center, University of Milano-Bicocca, Faafu Magoodhoo Island, 12030, Maldives
- National Biodiversity Future Center (NBFC), Palermo, 90133, Italy
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2
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Galea HR, Maggioni D, Galli P. On some species of Zygophylax Quelch, 1885 (Cnidaria: Hydrozoa: Zygophylacidae) from off New Caledonia. Zootaxa 2022; 5214:1-46. [PMID: 37044916 DOI: 10.11646/zootaxa.5214.1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Indexed: 11/30/2022]
Abstract
Eleven species of hydroids belonging to the genus Zygophylax Quelch, 1885 are present in the material collected by the KANACONO, KANADEEP and KANADEEP 2 expeditions of the French Tropical Dee-Sea Benthos Program. Of these, ten represent known taxa and are fertile specimens, while the last one is unidentifiable in the absence of its gonosome. Seven species are new records for the study area. Zygophylax dispersa Peña Cantero, 2020 is assigned to the synonymy of Z. pseudafricana Vervoort & Watson, 2003, while Z. laertesi Peña Cantero, 2020 is comprehensively redescribed based on numerous and morphologically-varied specimens. Uncertainties exist as to the synonymy between Z. antipathes (Lamarck, 1816) and Z. rufa (Bale, 1884), but the oldest available binomen was nevertheless used. The presence of nematothecae is confirmed in Z. polycarpa Vervoort & Watson, 2003, a species with unusual gonothecae for the genus, now redescribed based on additional, abundant material. Zygophylax pseudosibogae Gu et al., 2022 is also redescribed, supplementing the original account. Finally, phylogenetic analyses, based on the 16S rRNA gene, allowed the genetic characterization of a total of twenty nominal species of Zygophylax, including sequences for eight taxa not considered so far. The number of Zygophylax species known from the New Caledonian area is raised from eight to sixteen.
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Affiliation(s)
- Horia R Galea
- Hydrozoan Research Laboratory, 405 Chemin Les Gatiers, 83170 Tourves, France..
| | - Davide Maggioni
- Università degli Studi di Milano-Bicocca, Dipartimento di Scienze dell'Ambiente e della Terra, Piazza della Scienza 1, 20126 Milano, Italy..
| | - Paolo Galli
- Università degli Studi di Milano-Bicocca, Dipartimento di Scienze dell'Ambiente e della Terra, Piazza della Scienza 1, 20126 Milano, Italy. Università degli Studi di Milano-Bicocca, Marine and High Education (MaRHE) Center, 12030 Faafu Magoodhoo, Republic of the Maldives..
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Schuchert P, Collins R. Hydromedusae observed during night dives in the Gulf Stream. REV SUISSE ZOOL 2021. [DOI: 10.35929/rsz.0049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Peter Schuchert
- Muséum d'histoire naturelle, C.P. 6434, CH-1211 Genève 6, Switzerland
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Galea HR, Maggioni D, DI Camillo CG. Towards a better understanding of the genus Sciurella Allman, 1883 (Cnidaria: Hydrozoa: Plumulariidae): evidence from an integrative study. Zootaxa 2021; 5040:1-32. [PMID: 34811056 DOI: 10.11646/zootaxa.5040.1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Indexed: 11/04/2022]
Abstract
The genus Sciurella Allman, 1883 is reassessed based on fertile specimens from Indonesia and Australia, using both morphological and genetic approaches. The genus is resurrected and kept distinct from Nemertesia Lamouroux, 1812 on the account of its long, tubular hydrothecae, and the gonothecae (of which only the female ones are known) provided with nematothecae. Stellate gonothecae correspond to S. indivisa Allman, 1883, while urn-shaped gonothecae are subjectively attributable to S. cylindrica (Kirchenpauer, 1876), comb. nov., a nominal species originally described based on sterile material. The taxonomy of the latter species is discussed in light of the available literature data, and Antennularia cylindrica Bale, 1884 is confidently assigned to its synonymy. Plumularia dolichotheca Allman, 1883 is provisionally transferred to Sciurella, as S. dolichotheca comb. nov., pending the discovery of fertile specimens and reliable evidence from molecular studies. The newly-generated genetic data for S. indivisa and S. cylindrica clearly confirm the distinction between Sciurella and Nemertesia, the two genera occupying divergent positions within the Plumulariidae phylogenetic hypotheses.
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Affiliation(s)
- Horia R Galea
- Hydrozoan Research Laboratory, 405 Chemin Les Gatiers, 83170 Tourves, France..
| | - Davide Maggioni
- Universit degli Studi di Milano-Bicocca, Dipartimento di Scienze dellAmbiente e della Terra, Piazza della Scienza 1, 20126 Milano, Italy. Universit degli Studi di Milano-Bicocca, Marine and High Education (MaRHE) Center, 12030 Faafu Magoodhoo, Republic of the Maldives..
| | - Cristina G DI Camillo
- Universit Politecnica delle Marche, Dipartimento di Scienze della Vita et dellAmbiente, Via Brecce Bianche, 60131 Ancona, Italy. .
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Galea HR, Maggioni D. An integrative study of some species of Gonaxia Vervoort, 1993 from off New Caledonia, with the establishment of Gonaxiidae as a new family of thecate hydroids (Cnidaria: Hydrozoa). Zootaxa 2021; 5004:401-429. [PMID: 34811300 DOI: 10.11646/zootaxa.5004.3.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Indexed: 11/04/2022]
Abstract
Ten species belonging to the genus Gonaxia Vervoort, 1993 occur in recent collections gathered by KANACONO (2016), KANADEEP (2017) and KANADEEP 2 (2019) expeditions of the French Tropical Deep-Sea Benthos Program in deep waters of the New Caledonian region. They were studied using the classical, morphological approach, supplemented by the first genetic characterization of the genus undertaken so far. Two species are previously undescribed, namely G. incisa Galea, sp. nov. and G. solenoscyphoides Galea, sp. nov. Additional notes on the remaining species are provided, notably the discovery of the female gonothecae of G. crassicaulis Vervoort, 1993 and G. perplexa Vervoort, 1993. Lofty colonies, with distinctive cladia-bearing branches spirally-arranged around the stem, assignable to the recently-described G. plumularioides Galea, 2016 actually represent fully-developed colonies of G. errans Vervoort, 1993, as demonstrated using molecular markers, the latter nominal species having priority. Its unusual, club-shaped, longitudinally-ridged gonothecae, fully free from the stem, are described for the first time. Supplementary notes on the hydrotheca of G. crassicaulis Vervoort, 1993 are provided, together with the description of a distinctive gutter of perisarc channeling the coenosarc of the colony along the lumen of both the stem and cladia. A multi-locus phylogenetic hypothesis of the Macrocolonia supports the establishment of the family Gonaxiidae Maggioni, fam. nov., to accommodate the species dealt with herein.
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Affiliation(s)
- Horia R Galea
- Hydrozoan Research Laboratory, 405 Chemin Les Gatiers, 83170 Tourves, France..
| | - Davide Maggioni
- Universit degli Studi di Milano-Bicocca, Dipartimento di Scienze dellAmbiente e della Terra, Piazza della Scienza 1, 20126 Milano, Italy. Universit degli Studi di Milano-Bicocca, Marine and High Education (MaRHE) Center, 12030 Faafu Magoodhoo, Republic of the Maldives..
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Penney MS, Rawlings TA. An Examination of Shallow-Water Hydroids (Cnidaria, Hydrozoa, Hydroidolina) in Cape Breton, Nova Scotia, Using Morphology and DNA Barcoding. Northeast Nat (Steuben) 2021. [DOI: 10.1656/045.028.m1801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Matthew S.A. Penney
- Department of Biology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada
| | - Timothy A. Rawlings
- Department of Biology, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada
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Maggioni D, Schiavo A, Ostrovsky AN, Seveso D, Galli P, Arrigoni R, Berumen ML, Benzoni F, Montano S. Cryptic species and host specificity in the bryozoan-associated hydrozoan Zanclea divergens (Hydrozoa, Zancleidae). Mol Phylogenet Evol 2020; 151:106893. [PMID: 32562820 DOI: 10.1016/j.ympev.2020.106893] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 11/19/2022]
Abstract
Zanclea divergens is a tropical hydrozoan living in symbiotic association with bryozoans and currently reported from Papua New Guinea, Indonesia, and Maldives. Here, we used an integrative approach to assess the morpho-molecular diversity of the species across the Indo-Pacific. Phylogenetic and species delimitation analyses based on seven mitochondrial and nuclear loci revealed four well-supported molecular lineages corresponding to cryptic species, and representing a Pacific clade, an Indian clade, and two Red Sea clades. Since the general polyp morphology was almost identical in all samples, the nematocyst capsules were measured and analysed to search for possible fine-scale differences, and their statistical treatment revealed a significant difference in terms of length and width among the clades investigated. All Zanclea divergens specimens were specifically associated with cheilostome bryozoans belonging to the genus Celleporaria. The Pacific and Indian clades were associated with Celleporaria sp. and C. vermiformis, respectively, whereas both Red Sea lineages were associated with C. pigmentaria. Nevertheless, the sequencing of host bryozoans revealed that one of the Red Sea hydrozoan clades is associated with two morphologically undistinguishable, but genetically divergent, bryozoan species. Overall, our results show that Z. divergens is a species complex composed of morphologically cryptic lineages showing partially disjunct distributions and host specificity. The presence of two sympatric lineages living on the same host species reveal complex dynamics of diversification, and future research aimed at understanding their diversification process will likely improve our knowledge on the mechanisms of speciation among currently sympatric cryptic species.
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Affiliation(s)
- Davide Maggioni
- Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy; Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo, Maldives.
| | - Andrea Schiavo
- Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy; Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo, Maldives
| | - Andrew N Ostrovsky
- Department of Palaeontology, University of Vienna, 1090 Vienna, Austria; Department of Invertebrate Zoology, Saint Petersburg State University, 199034 Saint Petersburg, Russia
| | - Davide Seveso
- Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy; Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo, Maldives
| | - Paolo Galli
- Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy; Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo, Maldives
| | - Roberto Arrigoni
- Department of Biology and Evolution of Marine Organisms (BEOM), Stazione Zoologica Anton Dohrn Napoli, 80121 Napoli, Italy
| | - Michael L Berumen
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
| | - Francesca Benzoni
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
| | - Simone Montano
- Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, 20126 Milano, Italy; Marine Research and High Education (MaRHE) Center, University of Milano-Bicocca, 12030 Faafu Magoodhoo, Maldives
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8
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Green Fluorescence Patterns in Closely Related Symbiotic Species of Zanclea (Hydrozoa, Capitata). DIVERSITY-BASEL 2020. [DOI: 10.3390/d12020078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Green fluorescence is a common phenomenon in marine invertebrates and is caused by green fluorescent proteins. Many hydrozoan species display fluorescence in their polyps and/or medusa stages, and in a few cases patterns of green fluorescence have been demonstrated to differ between closely related species. Hydrozoans are often characterized by the presence of cryptic species, due to the paucity of available morphological diagnostic characters. Zanclea species are not an exception, showing high genetic divergence compared to a uniform morphology. In this work, the presence of green fluorescence and the morpho-molecular diversity of six coral- and bryozoan-associated Zanclea species from the Maldivian coral reefs were investigated. Specifically, the presence of green fluorescence in polyps and newly released medusae was explored, the general morphology, as well as the cnidome and the interaction with the hosts, were characterized, and the 16S rRNA region was sequenced and analyzed. Overall, Zanclea species showed a similar morphology, with little differences in the general morphological features and in the cnidome. Three of the analyzed species did not show any fluorescence in both life stages. Three other Zanclea species, including two coral-associated cryptic species, were distinguished by species-specific fluorescence patterns in the medusae. Altogether, the results confirmed the morphological similarity despite high genetic divergence in Zanclea species and indicated that fluorescence patterns may be a promising tool in further discriminating closely related and cryptic species. Therefore, the assessment of fluorescence at a large scale in the whole Zancleidae family may be useful to shed light on the diversity of this enigmatic taxon.
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Manca F, Puce S, Caragnano A, Maggioni D, Pica D, Seveso D, Galli P, Montano S. Symbiont footprints highlight the diversity of scleractinian‐associated
Zanclea
hydrozoans (Cnidaria, Hydrozoa). ZOOL SCR 2019. [DOI: 10.1111/zsc.12345] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Federica Manca
- Department of Life and Environmental Sciences Università Politecnica delle Marche Ancona Italy
| | - Stefania Puce
- Department of Life and Environmental Sciences Università Politecnica delle Marche Ancona Italy
| | - Annalisa Caragnano
- Department of Life and Environmental Sciences Università Politecnica delle Marche Ancona Italy
| | - Davide Maggioni
- Department of Earth and Environmental Sciences (DISAT) University of Milano-Bicocca Milan Italy
- Marine Research and High Education Center (MaRHE Center) Magoodhoo Island Faafu Atoll Republic of Maldives
| | - Daniela Pica
- Department of Life and Environmental Sciences Università Politecnica delle Marche Ancona Italy
| | - Davide Seveso
- Department of Earth and Environmental Sciences (DISAT) University of Milano-Bicocca Milan Italy
- Marine Research and High Education Center (MaRHE Center) Magoodhoo Island Faafu Atoll Republic of Maldives
| | - Paolo Galli
- Department of Earth and Environmental Sciences (DISAT) University of Milano-Bicocca Milan Italy
- Marine Research and High Education Center (MaRHE Center) Magoodhoo Island Faafu Atoll Republic of Maldives
| | - Simone Montano
- Department of Earth and Environmental Sciences (DISAT) University of Milano-Bicocca Milan Italy
- Marine Research and High Education Center (MaRHE Center) Magoodhoo Island Faafu Atoll Republic of Maldives
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Roveta C, Bavestrello G, Montefalcone M, Pica D, Puce S. Asymmetrical distribution of Distichopora violacea (Cnidaria: Hydrozoa) in four Maldivian atolls. THE EUROPEAN ZOOLOGICAL JOURNAL 2019. [DOI: 10.1080/24750263.2018.1551943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- C. Roveta
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - G. Bavestrello
- Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Università di Genova, Genova, Italy
| | - M. Montefalcone
- Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Università di Genova, Genova, Italy
| | - D. Pica
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
| | - S. Puce
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, Italy
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Gong S, Ding Y, Wang Y, Jiang G, Zhu C. Advances in DNA Barcoding of Toxic Marine Organisms. Int J Mol Sci 2018; 19:E2931. [PMID: 30261656 PMCID: PMC6213214 DOI: 10.3390/ijms19102931] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/28/2018] [Accepted: 09/20/2018] [Indexed: 01/10/2023] Open
Abstract
There are more than 200,000 marine species worldwide. These include many important economic species, such as large yellow croaker, ribbonfish, tuna, and salmon, but also many potentially toxic species, such as blue-green algae, diatoms, cnidarians, ctenophores, Nassarius spp., and pufferfish. However, some edible and toxic species may look similar, and the correct identification of marine species is thus a major issue. The failure of traditional classification methods in certain species has promoted the use of DNA barcoding, which uses short, standard DNA fragments to assist with species identification. In this review, we summarize recent advances in DNA barcoding of toxic marine species such as jellyfish and pufferfish, using genes including cytochrome oxidase I gene (COI), cytochrome b gene (cytb), 16S rDNA, internal transcribed spacer (ITS), and Ribulose-1,5-bisphosphate carboxylase oxygenase gene (rbcL). We also discuss the application of this technique for improving the identification of marine species. The use of DNA barcoding can benefit the studies of biological diversity, biogeography, food safety, and the detection of both invasive and new species. However, the technique has limitations, particularly for the analysis of complex objects and the selection of standard DNA barcodes. The development of high-throughput methods may offer solutions to some of these issues.
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Affiliation(s)
- Shaohua Gong
- Key Laboratory of Marine, Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China.
| | - Yanfei Ding
- Key Laboratory of Marine, Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China.
| | - Yi Wang
- Key Laboratory of Marine, Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China.
| | - Guangze Jiang
- Key Laboratory of Marine, Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China.
| | - Cheng Zhu
- Key Laboratory of Marine, Food Quality and Hazard Controlling Technology of Zhejiang Province, College of Life Sciences, China Jiliang University, Hangzhou 310018, China.
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12
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Montano S, Fattorini S, Parravicini V, Berumen ML, Galli P, Maggioni D, Arrigoni R, Seveso D, Strona G. Corals hosting symbiotic hydrozoans are less susceptible to predation and disease. Proc Biol Sci 2018; 284:rspb.2017.2405. [PMID: 29263277 DOI: 10.1098/rspb.2017.2405] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 11/20/2017] [Indexed: 11/12/2022] Open
Abstract
In spite of growing evidence that climate change may dramatically affect networks of interacting species, whether-and to what extent-ecological interactions can mediate species' responses to disturbances is an open question. Here we show how a largely overseen association such as that between hydrozoans and scleractinian corals could be possibly associated with a reduction in coral susceptibility to ever-increasing predator and disease outbreaks. We examined 2455 scleractinian colonies (from both Maldivian and the Saudi Arabian coral reefs) searching for non-random patterns in the occurrence of hydrozoans on corals showing signs of different health conditions (i.e. bleaching, algal overgrowth, corallivory and different coral diseases). We show that, after accounting for geographical, ecological and co-evolutionary factors, signs of disease and corallivory are significantly lower in coral colonies hosting hydrozoans than in hydrozoan-free ones. This finding has important implications for our understanding of the ecology of coral reefs, and for their conservation in the current scenario of global change, because it suggests that symbiotic hydrozoans may play an active role in protecting their scleractinian hosts from stresses induced by warming water temperatures.
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Affiliation(s)
- Simone Montano
- Department of Earth and Environmental Sciences (DISAT), University of Milan-Bicocca, Piazza della Scienza, 20126 Milan, Italy.,MaRHE Center (Marine Research and High Education Center), Magoodhoo Island Faafu Atoll, Republic of Maldives
| | - Simone Fattorini
- Department of Life, Health & Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.,CE3C - Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group and Universidade dos Açores - Departamento de Ciências e Engenharia do Ambiente, Angra do Heroísmo, Açores, Portugal
| | - Valeriano Parravicini
- CRIOBE, USR 3278 CNRS-EPHE-UPVD, LABEX Corail, University of Perpignan, 66860 Perpignan, France.,IRD UMR 9190 MARBEC, IRD-CNRS-IFREMER-UM, Université de Montpellier, Montpellier 34095, France
| | - Michael L Berumen
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Paolo Galli
- Department of Earth and Environmental Sciences (DISAT), University of Milan-Bicocca, Piazza della Scienza, 20126 Milan, Italy.,MaRHE Center (Marine Research and High Education Center), Magoodhoo Island Faafu Atoll, Republic of Maldives
| | - Davide Maggioni
- Department of Earth and Environmental Sciences (DISAT), University of Milan-Bicocca, Piazza della Scienza, 20126 Milan, Italy.,MaRHE Center (Marine Research and High Education Center), Magoodhoo Island Faafu Atoll, Republic of Maldives
| | - Roberto Arrigoni
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Davide Seveso
- Department of Earth and Environmental Sciences (DISAT), University of Milan-Bicocca, Piazza della Scienza, 20126 Milan, Italy.,MaRHE Center (Marine Research and High Education Center), Magoodhoo Island Faafu Atoll, Republic of Maldives
| | - Giovanni Strona
- European Commission, Joint Research Centre, Directorate D - Sustainable Resources, Bio-Economy Unit, Via Enrico Fermi 2749, 21027 Ispra, Italy
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Maggioni D, Galli P, Berumen ML, Arrigoni R, Seveso D, Montano S. Astrocoryne cabela, gen. nov. et sp. nov. (Hydrozoa : Sphaerocorynidae), a new sponge-associated hydrozoan. INVERTEBR SYST 2017. [DOI: 10.1071/is16091] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The family Sphaerocorynidae includes two valid genera and five species, most of which have a confusing taxonomic history. Here, a new genus and species, Astrocoryne cabela, gen. et sp. nov., is described from the Maldives and the Red Sea, based on both morphological and molecular evidence. Astrocoryne cabela has an apomorphy represented by the type of tentacles, here named ‘dicapitate’, and consisting of capitate tentacles with a proximal capitulum-like cluster of nematocysts. Molecular analyses confirmed the monophyly of this species, as well as its belonging to the Sphaerocorynidae, together with Sphaerocoryne spp. and Heterocoryne caribbensis Wedler & Larson, 1986, for which we present molecular data for the first time. Moreover, the high divergence of A. cabela from other species of the family justifies the establishment of a new genus. Interestingly, specimens from the Maldives and the Red Sea showed marked morphological variation in the polyp stage, although only a slight genetic divergence was detected. This study highlights that a comprehensive morpho-molecular assessment of Sphaerocorynidae is strongly needed in order to clarify the taxonomic issues and the diversity of this taxon.
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Habitat preferences of the Pteroclava krempfi-alcyonaceans symbiosis: inner vs outer coral reefs. Symbiosis 2016. [DOI: 10.1007/s13199-016-0467-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Maggioni D, Montano S, Seveso D, Galli P. Molecular evidence for cryptic species in Pteroclava krempfi (Hydrozoa, Cladocorynidae) living in association with alcyonaceans. SYST BIODIVERS 2016. [DOI: 10.1080/14772000.2016.1170735] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Davide Maggioni
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy
- MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Republic of Maldives
| | - Simone Montano
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy
- MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Republic of Maldives
| | - Davide Seveso
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy
- MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Republic of Maldives
| | - Paolo Galli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy
- MaRHE Center (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll, Republic of Maldives
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