1
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Huang WC, Evacitas FC, Balisco RA, Nañola CL, Chou TK, Jhuang WC, Chang CW, Shen KN, Shao KT, Liao TY. DNA barcoding of marine teleost fishes (Teleostei) in Cebu, the Philippines, a biodiversity hotspot of the coral triangle. Sci Rep 2023; 13:14867. [PMID: 37684303 PMCID: PMC10491795 DOI: 10.1038/s41598-023-41832-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
A morphology-based barcoding library of market teleost fishes (Teleostei) in Cebu is built based on cytochrome c oxidase subunit I (COI) sequences and voucher specimens which aimed to establish a reliable reference of frequently traded fishes in the province, a biodiversity hotspot at the center of the Philippine archipelago. A total of 1721 specimens were collected from 18 fish markets and landing sites around the province, in which 538 specimens were sequenced belonging to 393 species from 229 genera, 86 families, and 37 orders. Most speciose families are coral reef or reef-related shallow-water species. Twelve species from 11 families are newly recorded in the Philippine waters, among which 7 species are deep-sea inhabitants, while 3 species have expanded their distribution range. Only 20 taxa could not be identified to the species level due to the difficulty in morphological examinations, absence of matched reference sequences in online databases, and/or problematic species awaiting further studies. This first comprehensive DNA barcoding survey of Cebu fishes can facilitate further taxonomic research as well as the conservation and management of fisheries in the Philippines.
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Affiliation(s)
- Wen-Chien Huang
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung, Taiwan
- Doctoral Degree Program in Marine Biotechnology, Academia Sinica, Taipei, Taiwan
| | - Florence Chan Evacitas
- Department of Biology and Environmental Science, University of the Philippines Cebu, Cebu City, Philippines
| | - Rodulf Anthony Balisco
- Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan
- College of Fisheries and Aquatic Sciences, Western Philippines University, Puerto Princesa, Philippines
| | - Cleto L Nañola
- Department of Biological Sciences and Environmental Studies, University of the Philippines Mindanao, Davao City, Philippines
| | - Tak-Kei Chou
- Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Wei-Cheng Jhuang
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung, Taiwan
- Doctoral Degree Program in Marine Biotechnology, Academia Sinica, Taipei, Taiwan
| | - Chih-Wei Chang
- Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan
- Marine Ecology and Conservation Research Center, National Academy of Marine Research, Kaohsiung, Taiwan
- Institute of Marine Ecology and Conservation, National Sun Yat-sen University, Kaohsiung, Taiwan
- National Museum of Marine Biology and Aquarium, Pingtung, Taiwan
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan
| | - Kang-Ning Shen
- Marine Ecology and Conservation Research Center, National Academy of Marine Research, Kaohsiung, Taiwan
| | - Kwang-Tsao Shao
- Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
| | - Te-Yu Liao
- Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan.
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2
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Zhang K, Huang Y, Zhang Y, Liang R, Li Q, Li R, Zhao X, Bian C, Chen Y, Wu J, Shi Q, Lin L. A chromosome-level reference genome assembly of the Reeve's moray eel (Gymnothorax reevesii). Sci Data 2023; 10:501. [PMID: 37516767 PMCID: PMC10387071 DOI: 10.1038/s41597-023-02394-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 07/17/2023] [Indexed: 07/31/2023] Open
Abstract
Due to potentially hostile behaviors and elusive habitats, moray eels (Muraenidae) as one group of apex predators in coral reefs all across the globe have not been well investigated. Here, we constructed a chromosome-level genome assembly for the representative Reeve's moray eel (Gymnothorax reevesii). This haplotype genome assembly is 2.17 Gb in length, and 97.87% of the sequences are anchored into 21 chromosomes. It contains 56.34% repetitive sequences and 23,812 protein-coding genes, of which 96.77% are functionally annotated. This sequenced marine species in Anguilliformes makes a good complement to the genetic resource of eel genomes. It not only provides a genetic resource for in-depth studies of the Reeve's moray eel, but also enables deep-going genomic comparisons among various eels.
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Affiliation(s)
- Kai Zhang
- College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou, 510225, China
| | - Yu Huang
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, Shenzhen, 518081, China
- Laboratory of Aquatic Genomics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Yuxuan Zhang
- College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou, 510225, China
| | - Rishen Liang
- College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou, 510225, China
| | - Qingqing Li
- College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou, 510225, China
| | - Ruihan Li
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, Shenzhen, 518081, China
| | - Xiaomeng Zhao
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, Shenzhen, 518081, China
| | - Chao Bian
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, Shenzhen, 518081, China
- Laboratory of Aquatic Genomics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Yongnan Chen
- College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou, 510225, China
| | - Jinhui Wu
- Agro-Tech Extension Center of Guangdong Province, Guangzhou, 510225, China
| | - Qiong Shi
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, Shenzhen, 518081, China.
- Laboratory of Aquatic Genomics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China.
| | - Li Lin
- College of Animal Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China.
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou, 510225, China.
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3
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Ramos-Castro M, Loh KH, Chen HM. A descriptive and comparative neurocranium morphology of Anguilliformes fishes in Taiwan waters. Zootaxa 2021; 5023:509-536. [PMID: 34810950 DOI: 10.11646/zootaxa.5023.4.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Indexed: 11/04/2022]
Abstract
Taiwan is one of the richest in the world in terms of eel fauna. In this study, we examined the osteological and morphological characteristics of eels under order Anguilliformes. Furthermore, we focused on the neurocranium of total of 30 Anguilliformes fishes under family Congridae (10), Muraenesocidae (1), Muraenidae (7), Nemichthyidae (1), Nettastomatidae (2), Ophichthidae (5), Synaphobranchidae (4), which are caught in Taiwanese waters. This paper shows the results of a comparative study on osteological characters of the neurocranium including the ratio of seven length characters using its NCL (neurocranium length), NCW (neurocranium width), OBL (orbit length), MFW (maximum frontal width), NCDB (neurocranium depth at basisphenoid), PEVW (premaxilla-ethmovomer width) and mPOBL (mid pre-orbital length), and 20 morphological diagnostic characters for 30 eel species. Results shows that species under family Nemichthyidae and Nettastomatidae have the highest values on the ratio of NCL/MFW, NCL/NCDB, and NCW/mPOBD. In morphological characters, it shows that species of the same family mostly share similar formation of the PEV plate and frontal structure. The usage of the length measurements and morphological diagnostic characters of neurocranium allowed for a more in depth understanding of how similar or different these eels can be. The neurocranial description and morphological characters may prove valuable for identification purposes and might be necessary tool for further studies on the status of order Anguilliformes.
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Affiliation(s)
- Marites Ramos-Castro
- Department of Aquaculture, College of Life Sciences, National Taiwan Ocean University, Keelung, 20224, Taiwan .
| | - Kar-Hoe Loh
- Institute of Ocean and Earth Sciences, Universiti Malaya, Kuala Lumpur 50603, Malaysia .
| | - Hong-Ming Chen
- Department of Aquaculture, College of Life Sciences, National Taiwan Ocean University, Keelung, 20224, Taiwan. Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, 20224, Taiwan..
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4
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Zhang K, Zhu K, Liu Y, Zhang H, Gong L, Jiang L, Liu L, Lü Z, Liu B. Novel gene rearrangement in the mitochondrial genome of Muraenesox cinereus and the phylogenetic relationship of Anguilliformes. Sci Rep 2021; 11:2411. [PMID: 33510193 PMCID: PMC7844273 DOI: 10.1038/s41598-021-81622-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 12/30/2020] [Indexed: 01/30/2023] Open
Abstract
The structure and gene sequence of the fish mitochondrial genome are generally considered to be conservative. However, two types of gene arrangements are found in the mitochondrial genome of Anguilliformes. In this paper, we report a complete mitogenome of Muraenesox cinereus (Anguilliformes: Muraenesocidae) with rearrangement phenomenon. The total length of the M. cinereus mitogenome was 17,673 bp, and it contained 13 protein-coding genes, two ribosomal RNAs, 22 transfer RNA genes, and two identical control regions (CRs). The mitochondrial genome of M. cinereus was obviously rearranged compared with the mitochondria of typical vertebrates. The genes ND6 and the conjoint trnE were translocated to the location between trnT and trnP, and one of the duplicated CR was translocated to the upstream of the ND6. The tandem duplication and random loss is most suitable for explaining this mitochondrial gene rearrangement. The Anguilliformes phylogenetic tree constructed based on the whole mitochondrial genome well supports Congridae non-monophyly. These results provide a basis for the future Anguilliformes mitochondrial gene arrangement characteristics and further phylogenetic research.
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Affiliation(s)
- Kun Zhang
- grid.443668.b0000 0004 1804 4247National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Zhejiang Ocean University, No. 1, Haida South Road, Zhoushan, Zhejiang 316022 People’s Republic of China ,grid.443668.b0000 0004 1804 4247National Engineering Research Center for Facilitated Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316022 People’s Republic of China
| | - Kehua Zhu
- grid.443668.b0000 0004 1804 4247National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Zhejiang Ocean University, No. 1, Haida South Road, Zhoushan, Zhejiang 316022 People’s Republic of China ,grid.443668.b0000 0004 1804 4247National Engineering Research Center for Facilitated Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316022 People’s Republic of China
| | - Yifan Liu
- grid.443668.b0000 0004 1804 4247National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Zhejiang Ocean University, No. 1, Haida South Road, Zhoushan, Zhejiang 316022 People’s Republic of China ,grid.443668.b0000 0004 1804 4247National Engineering Research Center for Facilitated Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316022 People’s Republic of China
| | - Hua Zhang
- grid.9227.e0000000119573309Key Laboratory of Tropical Marine Bio-Resources and Ecology, Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Li Gong
- grid.443668.b0000 0004 1804 4247National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Zhejiang Ocean University, No. 1, Haida South Road, Zhoushan, Zhejiang 316022 People’s Republic of China ,grid.443668.b0000 0004 1804 4247National Engineering Research Center for Facilitated Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316022 People’s Republic of China
| | - Lihua Jiang
- grid.443668.b0000 0004 1804 4247National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Zhejiang Ocean University, No. 1, Haida South Road, Zhoushan, Zhejiang 316022 People’s Republic of China ,grid.443668.b0000 0004 1804 4247National Engineering Research Center for Facilitated Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316022 People’s Republic of China
| | - Liqin Liu
- grid.443668.b0000 0004 1804 4247National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Zhejiang Ocean University, No. 1, Haida South Road, Zhoushan, Zhejiang 316022 People’s Republic of China ,grid.443668.b0000 0004 1804 4247National Engineering Research Center for Facilitated Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316022 People’s Republic of China
| | - Zhenming Lü
- grid.443668.b0000 0004 1804 4247National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Zhejiang Ocean University, No. 1, Haida South Road, Zhoushan, Zhejiang 316022 People’s Republic of China ,grid.443668.b0000 0004 1804 4247National Engineering Research Center for Facilitated Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316022 People’s Republic of China
| | - Bingjian Liu
- grid.443668.b0000 0004 1804 4247National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, Zhejiang Ocean University, No. 1, Haida South Road, Zhoushan, Zhejiang 316022 People’s Republic of China ,grid.9227.e0000000119573309Key Laboratory of Tropical Marine Bio-Resources and Ecology, Chinese Academy of Sciences, Beijing, People’s Republic of China ,grid.443668.b0000 0004 1804 4247National Engineering Research Center for Facilitated Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan, 316022 People’s Republic of China
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5
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Coluccia E, Deidda F, Lobina C, Melis R, Porcu C, Agus B, Salvadori S. Chromosome Mapping of 5S Ribosomal Genes in Indo-Pacific and Atlantic Muraenidae: Comparative Analysis by Dual Colour Fluorescence In Situ Hybridisation. Genes (Basel) 2020; 11:genes11111319. [PMID: 33172170 PMCID: PMC7694744 DOI: 10.3390/genes11111319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/31/2020] [Accepted: 11/03/2020] [Indexed: 11/16/2022] Open
Abstract
The Muraenidae is one of the largest and most complex anguilliform families. Despite their abundance and important ecological roles, morays are little studied, especially cytogenetically, and both their phylogenetic relationships and the taxonomy of their genera are controversial. With the aim of extending the karyology of this fish group, the chromosomal mapping of the 5S ribosomal gene family was performed on seven species belonging to the genera Muraena and Gymnothorax from both the Atlantic and Pacific oceans. Fluorescence in situ hybridisation (FISH) experiments were realized using species-specific 5S rDNA probes; in addition, two-colour FISH was performed to investigate the possible association with the 45S ribosomal gene family. Multiple 5S rDNA clusters, located either in species-specific or in possibly homoeologous chromosomes, were found. Either a syntenic or different chromosomal location of the two ribosomal genes was detected. Our results revealed variability in the number and location of 5S rDNA clusters and confirmed a substantial conservation of the number and location of the 45S rDNA.
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6
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Andrews KR, Copus JM, Wilcox C, Williams AJ, Newman SJ, Wakefield CB, Bowen BW. Range-Wide Population Structure of 3 Deepwater Eteline Snappers Across the Indo-Pacific Basin. J Hered 2020; 111:471-485. [PMID: 32803261 DOI: 10.1093/jhered/esaa029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/11/2020] [Indexed: 11/14/2022] Open
Abstract
Deep-sea habitats may drive unique dispersal and demographic patterns for fishes, but population genetic analyses to address these questions have rarely been conducted for fishes in these environments. This study investigates the population structure of 3 tropical deepwater snappers of the genus Etelis that reside at 100-400 m depth, with broad and overlapping distributions in the Indo-Pacific. Previous studies showed little population structure within the Hawaiian Archipelago for 2 of these species: Etelis coruscans and E. carbunculus. Here we extend sampling to the entire geographic range of each species to resolve the population genetic architecture for these 2 species, as well as a recently exposed cryptic species (Etelis sp.). One goal was to determine whether deepwater snappers are more dispersive than shallow-water fishes. A second goal was to determine whether submesophotic fishes have older, more stable populations than shallow reef denizens that are subject to glacial sea-level fluctuations. Both goals are pertinent to the management of these valuable food fishes. A total of 1153 specimens of E. coruscans from 15 geographic regions were analyzed, along with 1064 specimens of E. carbunculus from 11 regions, and 590 specimens of E. sp. from 16 regions. The first 2 species were analyzed with mtDNA and 9-11 microsatellite loci, while E. sp. was analyzed with mtDNA only. Etelis coruscans had a non-significant microsatellite global FST, but significant global mtDNA Ф ST = 0.010 (P = 0.0007), with the isolation of Seychelles in the western Indian Ocean, and intermittent signals of isolation for the Hawaiian Archipelago. Etelis carbunculus had a non-significant microsatellite global FST, and significant global mtDNA Ф ST = 0.021 (P = 0.0001), with low but significant levels of isolation for Hawai'i, and divergence between Tonga and Fiji. Etelis sp. had mtDNA Ф ST = 0.018 (P = 0.0005), with a strong pattern of isolation for both Seychelles and Tonga. Overall, we observed low population structure, shallow mtDNA coalescence (similar to near-shore species), and isolation at the fringes of the Indo-Pacific basin in Hawai'i and the western Indian Ocean. While most shallow-water species have population structure on the scale of biogeographic provinces, deepwater snapper populations are structured on the wider scale of ocean basins, more similar to pelagic fishes than to shallow-water species. This population structure indicates the capacity for widespread dispersal throughout the Indo-Pacific region.
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Affiliation(s)
- Kimberly R Andrews
- Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, ID.,Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | - Joshua M Copus
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | - Christie Wilcox
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
| | - Ashley J Williams
- Oceanic Fisheries Programme, The Pacific Community, Noumea, New Caledonia.,Centre for Sustainable Tropical Fisheries and Aquaculture, College of Marine and Environmental Sciences, James Cook University, Townsville, Queensland, Australia
| | - Stephen J Newman
- Western Australian Fisheries and Marine Research Laboratories, Department of Primary Industries and Regional Development, Government of Western Australia, North Beach, WA, Australia
| | - Corey B Wakefield
- Western Australian Fisheries and Marine Research Laboratories, Department of Primary Industries and Regional Development, Government of Western Australia, North Beach, WA, Australia
| | - Brian W Bowen
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kaneohe, HI
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7
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Short G, Claassens L, Smith R, De Brauwer M, Hamilton H, Stat M, Harasti D. Hippocampus nalu, a new species of pygmy seahorse from South Africa, and the first record of a pygmy seahorse from the Indian Ocean (Teleostei, Syngnathidae). Zookeys 2020; 934:141-156. [PMID: 32508498 PMCID: PMC7253503 DOI: 10.3897/zookeys.934.50924] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/12/2020] [Indexed: 11/12/2022] Open
Abstract
A new species and the first confirmed record of a true pygmy seahorse from Africa, Hippocampus nalu sp. nov., is herein described on the basis of two specimens, 18.9-22 mm SL, collected from flat sandy coral reef at 14-17 meters depth from Sodwana Bay, South Africa. The new taxon shares morphological synapomorphies with the previously described central Indo-Pacific pygmy seahorses, H. colemani, H. japapigu, H. pontohi, and H. satomiae, and H. waleananus, including diminutive size, twelve trunk rings, prominent cleithral ring and supracleithrum, spines on the fifth and twelfth superior and lateral trunk ridges, respectively, and prominent wing-like protrusions present on the first and/or second superior trunk rings posterior to the head. Hippocampus nalu sp. nov. is primarily distinguished from its pygmy seahorse congeners by highly distinct spine morphology along the anterior segments of the superior trunk ridge. Comparative molecular analysis reveals that the new species demonstrates significant genetic divergence in the mitochondrial COI gene from the morphologically similar H. japapigu and H. pontohi (estimated uncorrected p-distances of 16.3% and 15.2%, respectively). Hippocampus nalu sp. nov. represents the eighth member of the pygmy seahorse clade to be described from the Indo-Pacific, the first confirmed record from the African continent and the Indian Ocean, and an extension of more than 8000 km beyond the previously known range of pygmy seahorses from the Central and Western Indo-Pacific.
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Affiliation(s)
- Graham Short
- Research Associate, Ichthyology, Australian Museum Research Institute, Sydney, Australia Australian Museum Research Institute Sydney Australia.,Research Associate, Ichthyology, California Academy of Sciences, San Francisco, USA Ichthyology, California Academy of Sciences San Francisco United States of America.,Research Associate, Ichthyology, Burke Museum, Seattle, USA Burke Museum Seattle United States of America
| | - Louw Claassens
- IUCN Seahorse, Pipefish Stickleback Specialist Group, University of British Columbia, Vancouver, Canada University of British Columbia Vancouver Canada.,Rhodes University, Grahamstown, South Africa Rhodes University Grahamstown South Africa.,Knysna Basin Project, Knysna, South Africa Knysna Basin Project Knysna South Africa
| | - Richard Smith
- IUCN Seahorse, Pipefish Stickleback Specialist Group, University of British Columbia, Vancouver, Canada University of British Columbia Vancouver Canada
| | | | - Healy Hamilton
- IUCN Seahorse, Pipefish Stickleback Specialist Group, University of British Columbia, Vancouver, Canada University of British Columbia Vancouver Canada.,NatureServe, Arlington, Virginia, USA NatureServe Arlington United States of America
| | - Michael Stat
- University of Newcastle, Callaghan, NSW, Australia University of Newcastle Callaghan Australia
| | - David Harasti
- IUCN Seahorse, Pipefish Stickleback Specialist Group, University of British Columbia, Vancouver, Canada University of British Columbia Vancouver Canada.,Port Stephens Fisheries Institute, NSW, Australia Port Stephens Fisheries Institute Anna Bay Australia
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8
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Gartner SM, Mehta RS. Effects of Diet and Intraspecific Scaling on the Viscera of Muraenid Fishes. ZOOLOGY 2020; 139:125752. [DOI: 10.1016/j.zool.2020.125752] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 01/21/2020] [Accepted: 01/27/2020] [Indexed: 12/15/2022]
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9
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Burridge AK, Van Der Hulst R, Goetze E, Peijnenburg KTCA. Assessing species boundaries in the open sea: an integrative taxonomic approach to the pteropod genus Diacavolinia. Zool J Linn Soc 2019. [DOI: 10.1093/zoolinnean/zlz049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Abstract
To track changes in pelagic biodiversity in response to climate change, it is essential to accurately define species boundaries. Shelled pteropods are a group of holoplanktonic gastropods that have been proposed as bio-indicators because of their vulnerability to ocean acidification. A particularly suitable, yet challenging group for integrative taxonomy is the pteropod genus Diacavolinia, which has a circumglobal distribution and is the most species-rich pteropod genus, with 24 described species. We assessed species boundaries in this genus, with inferences based on geometric morphometric analyses of shell-shape variation, genetic (cytochrome c oxidase subunit I, 28S rDNA sequences) and geographic data. We found support for a total of 13 species worldwide, with observations of 706 museum and 263 freshly collected specimens across a global collection of material, including holo‐ and paratype specimens for 14 species. In the Atlantic Ocean, two species are well supported, in contrast to the eight currently described, and in the Indo‐Pacific we found a maximum of 11 species, partially merging 13 of the described species. Distributions of these revised species are congruent with well-known biogeographic provinces. Combining varied datasets in an integrative framework may be suitable for many diverse taxa and is an important first step to predicting species-specific responses to global change.
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Affiliation(s)
- Alice K Burridge
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, The Netherlands
| | | | - Erica Goetze
- Department of Oceanography, University of Hawai’i at Mānoa, Honolulu, Hawaii, USA
| | - Katja T C A Peijnenburg
- Naturalis Biodiversity Center, Leiden, The Netherlands
- Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, The Netherlands
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10
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Wilcox CL, Motomura H, Matsunuma M, Bowen BW. Phylogeography of Lionfishes (Pterois) Indicate Taxonomic Over Splitting and Hybrid Origin of the Invasive Pterois volitans. J Hered 2019. [PMID: 28637254 DOI: 10.1093/jhered/esx056] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The lionfish is an iconic marine fish, and recently renowned for a disastrous introduction into the West Atlantic. Genetic surveys of the putative invaders (Pterois volitans and Pterois miles) in their natural Indo-Pacific range can illuminate both topics. Previous research indicated that P. volitans and P. miles are sister species that hybridize in the invasive range, but hybridization in the native range is unknown. Here, we apply mtDNA COI and 2 nuclear introns (S7 RP1 and Gpd2) from 229 lionfish including the 2 invaders and 2 closely-related taxa (44 P. miles, 91 P. volitans, 31 Pterois lunulata, and 63 Pterois russelii) from 10 locations in their native ranges. Genetic data are supplemented with key morphological characters: dorsal, anal, and pectoral fin ray counts. We observed 2 lineages (d = 4.07%, 0.89%, and 2.75% at COI, S7 RP1, and Gpd2, respectively) among the 4 putative species: an Indian Ocean lineage represented by P. miles, and a Pacific Ocean lineage represented by P. lunulata and P. russelii. All specimens of the invasive P. volitans appear to be hybrids between the Indian Ocean P. miles and a Pacific lineage encompassing P. lunulata/russelii, a conclusion supported by both genetics and morphology. The divergences between Indian and Pacific forms are within the range of species-level partitions in fishes, and we recommend retention of the names P. miles and P. russelii for Indian and Pacific forms. The hybrid origin of the Atlantic invasion invokes the possibility of heterosis as a contributing factor to invasion success.
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Affiliation(s)
- Christie L Wilcox
- Hawai'i Institute of Marine Biology, Kane'ohe, HI.,Pacific Biosciences Research Center, University of Hawai'i at Mānoa, Honolulu, HI
| | | | - Mizuki Matsunuma
- Laboratory of Marine Biology, Faculty of Science, Kochi University, Kochi, Japan
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11
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Complete mitochondrial genome of Ophichthus brevicaudatus reveals novel gene order and phylogenetic relationships of Anguilliformes. Int J Biol Macromol 2019; 135:609-618. [PMID: 31132441 DOI: 10.1016/j.ijbiomac.2019.05.139] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/30/2019] [Accepted: 05/21/2019] [Indexed: 11/20/2022]
Abstract
Generally, a teleostean group possesses only one type or a set of similar mitochondrial gene arrangement. However, two types of gene arrangement have been identified in the mitochondrial genomes (mitogenomes) of Anguilliformes. Here, a newly sequenced mitogenome of Ophichthus brevicaudatus (Anguilliformes; Ophichthidae) was presented. The total length of the O. brevicaudatus mitogenome was 17,773 bp, and it contained 13 protein-coding genes (PCGs), two ribosomal RNAs (rRNAs), 22 transfer RNA (tRNA) genes, and two identical control regions (CRs). The gene order differed from that of the typical vertebrate mitogenomes. The genes ND6 and the conjoint trnE were translocated to the location between trnT and trnP, and one of the duplicated CR was translocated to the upstream of the ND6. The duplication-random loss model was adopted to explain the gene rearrangement events in this mitogenome. The most comprehensive phylogenetic trees of Anguilliformes based on complete mitogenome was constructed. The non-monophyly of Congridae was well supported, whereas the non-monophyly of Derichthyidae and Chlopsidae was not supported. These results provide insight into gene arrangement features of anguilliform mitogenomes and lay the foundation for further phylogenetic studies on Anguilliformes.
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12
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Prognathodes geminus, a new species of butterflyfish (Teleostei, Chaetodontidae) from Palau. Zookeys 2019; 835:125-137. [PMID: 31043851 PMCID: PMC6477842 DOI: 10.3897/zookeys.835.32562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 03/05/2019] [Indexed: 11/23/2022] Open
Abstract
A new species of the butterflyfish genus Prognathodes (Chaetodontidae) is described from two specimens collected at a depth of 116 m off Ngemelis Island, Palau. Prognathodesgeminussp. n. is similar to P.basabei Pyle & Kosaki, 2016 from the Hawaiian archipelago, and P.guezei (Maugé & Bauchot, 1976) from the western Indian Ocean, but differs from these species in the number of soft dorsal-fin rays, size of head, body width, and body depth. There are also subtle differences in life color, and substantial differences in the mtDNA cytochrome oxidase I sequence (d ≈ 0.08). Although genetic comparisons with P.guezei are unavailable, it is expected that the genetic divergence between P.guezei and P.geminus will be even greater than that between P.geminus and P.basabei. It is named for the strikingly similar color pattern it shares with P.basabei.
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13
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Argolo LA, Ramos RT, Barreto SB, Bitencourt JA, Sampaio I, Schneider H, Affonso PR. The flounder next door: Closer evolutionary relationship between allopatric than sympatric Bothus (Rafinesque, 1810) species (Pleuronectiformes, Bothidae). ZOOL ANZ 2018. [DOI: 10.1016/j.jcz.2018.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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14
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Pyle RL, Greene BD, Copus JM, Randall JE. Tosanoidesannepatrice, a new basslet from deep coral reefs in Micronesia (Perciformes, Percoidei, Serranidae). Zookeys 2018:139-153. [PMID: 30310352 PMCID: PMC6177527 DOI: 10.3897/zookeys.786.28421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 09/09/2018] [Indexed: 11/28/2022] Open
Abstract
The new species Tosanoidesannepatricesp. n. is described from four specimens collected at depths of 115–148 m near Palau and Pohnpei in Micronesia. It differs from the other three species of this genus in life color and in certain morphological characters, such as body depth, snout length, anterior three dorsal-fin spine lengths, caudal-fin length, and other characters. There are also genetic differences from the other four species of Tosanoides (d ≈ 0.04–0.12 in mtDNA cytochrome oxidase I). This species is presently known only from Palau and Pohnpei within Micronesia, but it likely occurs elsewhere throughout the tropical western Pacific.
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Affiliation(s)
- Richard L Pyle
- Bernice P. Bishop Museum, 1525 Bernice Street, Honolulu, Hawai'i 96817, USA Bernice P. Bishop Museum Honolulu United States of America
| | - Brian D Greene
- Association for Marine Exploration, 47-224 Kamehameha Hwy, Kaneohe, Hawai'i 96744, USA Association for Marine Exploration Kaneohe United States of America
| | - Joshua M Copus
- Hawaii Institute of Marine Biology, 46-007 Lilipuna Rd, Kaneohe, Hawai'i 96744, USA Hawaii Institute of Marine Biology Kaneohe United States of America
| | - John E Randall
- Hawaii Institute of Marine Biology, 46-007 Lilipuna Rd, Kaneohe, Hawai'i 96744, USA Hawaii Institute of Marine Biology Kaneohe United States of America
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15
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Copus JM, Montgomery WL, Forsman ZH, Bowen BW, Toonen RJ. Geopolitical species revisited: genomic and morphological data indicate that the roundtail chub Gila robusta species complex (Teleostei, Cyprinidae) is a single species. PeerJ 2018; 6:e5605. [PMID: 30294509 PMCID: PMC6167970 DOI: 10.7717/peerj.5605] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 08/17/2018] [Indexed: 11/20/2022] Open
Abstract
The Gila robusta species complex in the Lower Colorado River Basin has a complicated taxonomic history. Recent authors have separated this group into three nominal taxa, G. robusta, G. intermedia, and G. nigra, however aside from location, no reliable method of distinguishing individuals of these species currently exists. To assess relationships within this group, we examined morphology of type specimens and fresh material, and used RADseq methods to assess phylogenetic relationship among these nominal species. Maximum likelihood and Bayesian inference tree building methods reveal high concordance between tree topologies based on the mitochondrial and nuclear datasets. Coalescent SNAPP analysis resolved a similar tree topology. Neither morphological nor molecular data reveal diagnostic differences between these species as currently defined. As such, G. intermedia and G. nigra should be considered synonyms of the senior G. robusta. We hypothesize that climate driven wet and dry cycles have led to periodic isolation of population subunits and subsequent local divergence followed by reestablished connectivity and mixing. Management plans should therefore focus on retaining genetic variability and viability of geographic populations to preserve adaptability to changing climate conditions.
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Affiliation(s)
- Joshua M. Copus
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
| | - W. L. Montgomery
- Department of Biology, Northern Arizona University, Flagstaff, AZ, USA
| | - Zac H. Forsman
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
| | - Brian W. Bowen
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
| | - Robert J. Toonen
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
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16
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Short G, Smith R, Motomura H, Harasti D, Hamilton H. Hippocampusjapapigu, a new species of pygmy seahorse from Japan, with a redescription of H.pontohi (Teleostei, Syngnathidae). Zookeys 2018:27-49. [PMID: 30166895 PMCID: PMC6110155 DOI: 10.3897/zookeys.779.24799] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/08/2018] [Indexed: 11/24/2022] Open
Abstract
The pygmy seahorse Hippocampusjapapigusp. n. is described based on three specimens, 13.9–16.3 mm SL, collected from a mixed soft coral and algae reef at 11 m depth at Hachijo-jima Island, Izu Islands, Japan. The new taxon shares morphological synapomorphies with the previously described central Indo-Pacific pygmy seahorses, H.colemani, H.pontohi, H.satomiae, and H.waleananus, including extremely small size, 12 trunk rings, strongly raised continuous cleithral ring, snout spine, large spine on the eighth lateral and fifth and 12 superior trunk ridges, respectively, and unusual wing-like-protrusions immediately posterior to the head. Hippocampusjapapigusp. n. can be distinguished from all congeners by the following combination of features in the anterodorsal area of the trunk: bilaterally paired wing-like protrusions formed by a single pair of large, truncate spines projecting dorsolaterad on the first superior trunk ridge, followed by a unique elevated dorsal ridge formed by triangular bony mounds dorsally on the second to fourth superior trunk ridges. In contrast, H.pontohi possesses a pair of large truncate spines projecting strongly laterad on both the first and second superior trunk ridges followed by flat surfaces dorsally on the third and fourth superior trunk rings. The new species can be further differentiated by genetic divergence from H.pontohi (an uncorrected p-distance of 10.1% in the mitochondrial COI gene) and a striking reticulated white and brown lattice pattern on the head, trunk, and tail. Hippocampusjapapigusp. n. represents the fifth species of pygmy seahorse recorded in Japan.
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Affiliation(s)
- Graham Short
- California Academy of Sciences, San Francisco, United States of America California Academy of Sciences San Francisco United States of America
| | - Richard Smith
- iSeahorse, IUCN Seahorse, Pipefish Stickleback Specialist Group, London U.K. Pipefish Stickleback Specialist Group London United Kingdom
| | - Hiroyuki Motomura
- Kagoshima University Museum, Japan Kagoshima University Museum Kagoshima Japan
| | - David Harasti
- Port Stephens Fisheries Institute, NSW, Australia Port Stephens Fisheries Institute Nelson Bay Australia
| | - Healy Hamilton
- Kagoshima University Museum, Japan Kagoshima University Museum Kagoshima Japan
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17
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Ribout C, Bech N, Briand MJ, Guyonnet D, Letourneur Y, Brischoux F, Bonnet X. A lack of spatial genetic structure of Gymnothorax chilospilus (moray eel) suggests peculiar population functioning. Biol J Linn Soc Lond 2018. [DOI: 10.1093/biolinnean/bly107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- C Ribout
- CEBC, UMR 7372 CNRS-ULR, Villiers en Bois, France
| | - N Bech
- Laboratoire Ecologie et Biologie des Interactions, UMR CNRS 7267, Equipe ‘Ecologie, Evolution, Symbiose’, Université de Poitiers, Poitiers, France
| | - M J Briand
- Institut Méditerranéen d’Océanologie (MIO), UMR CNRS 7294, Aix-Marseille Université, Marseille Cedex, France
| | - D Guyonnet
- Signalisation et transports ioniques membranaires (STIM), ERL 7368/EA-7349, Université de Poitiers, Poitiers, France
| | - Y Letourneur
- Université de la Nouvelle-Calédonie, Institut ISEA - EA 7484 and LabEx « Corail », Nouméa cedex, New Caledonia
| | - F Brischoux
- CEBC, UMR 7372 CNRS-ULR, Villiers en Bois, France
| | - X Bonnet
- CEBC, UMR 7372 CNRS-ULR, Villiers en Bois, France
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18
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Abstract
Understanding how geography, oceanography, and climate have ultimately shaped marine biodiversity requires aligning the distributions of genetic diversity across multiple taxa. Here, we examine phylogeographic partitions in the sea against a backdrop of biogeographic provinces defined by taxonomy, endemism, and species composition. The taxonomic identities used to define biogeographic provinces are routinely accompanied by diagnostic genetic differences between sister species, indicating interspecific concordance between biogeography and phylogeography. In cases where individual species are distributed across two or more biogeographic provinces, shifts in genotype frequencies often align with biogeographic boundaries, providing intraspecific concordance between biogeography and phylogeography. Here, we provide examples of comparative phylogeography from (i) tropical seas that host the highest marine biodiversity, (ii) temperate seas with high productivity but volatile coastlines, (iii) migratory marine fauna, and (iv) plankton that are the most abundant eukaryotes on earth. Tropical and temperate zones both show impacts of glacial cycles, the former primarily through changing sea levels, and the latter through coastal habitat disruption. The general concordance between biogeography and phylogeography indicates that the population-level genetic divergences observed between provinces are a starting point for macroevolutionary divergences between species. However, isolation between provinces does not account for all marine biodiversity; the remainder arises through alternative pathways, such as ecological speciation and parapatric (semiisolated) divergences within provinces and biodiversity hotspots.
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19
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Walter RP, Roy D, Hussey NE, Stelbrink B, Kovacs KM, Lydersen C, McMeans BC, Svavarsson J, Kessel ST, Biton Porsmoguer S, Wildes S, Tribuzio CA, Campana SE, Petersen SD, Grubbs RD, Heath DD, Hedges KJ, Fisk AT. Origins of the Greenland shark ( Somniosus microcephalus): Impacts of ice-olation and introgression. Ecol Evol 2017; 7:8113-8125. [PMID: 29043060 PMCID: PMC5632604 DOI: 10.1002/ece3.3325] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 06/07/2017] [Accepted: 07/21/2017] [Indexed: 12/04/2022] Open
Abstract
Herein, we use genetic data from 277 sleeper sharks to perform coalescent‐based modeling to test the hypothesis of early Quaternary emergence of the Greenland shark (Somniosus microcephalus) from ancestral sleeper sharks in the Canadian Arctic‐Subarctic region. Our results show that morphologically cryptic somniosids S. microcephalus and Somniosus pacificus can be genetically distinguished using combined mitochondrial and nuclear DNA markers. Our data confirm the presence of genetically admixed individuals in the Canadian Arctic and sub‐Arctic, and temperate Eastern Atlantic regions, suggesting introgressive hybridization upon secondary contact following the initial species divergence. Conservative substitution rates fitted to an Isolation with Migration (IM) model indicate a likely species divergence time of 2.34 Ma, using the mitochondrial sequence DNA, which in conjunction with the geographic distribution of admixtures and Pacific signatures likely indicates speciation associated with processes other than the closing of the Isthmus of Panama. This time span coincides with further planetary cooling in the early Quaternary period followed by the onset of oscillating glacial‐interglacial cycles. We propose that the initial S. microcephalus–S. pacificus split, and subsequent hybridization events, were likely associated with the onset of Pleistocene glacial oscillations, whereby fluctuating sea levels constrained connectivity among Arctic oceanic basins, Arctic marginal seas, and the North Atlantic Ocean. Our data demonstrates support for the evolutionary consequences of oscillatory vicariance via transient oceanic isolation with subsequent secondary contact associated with fluctuating sea levels throughout the Quaternary period—which may serve as a model for the origins of Arctic marine fauna on a broad taxonomic scale.
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Affiliation(s)
- Ryan P Walter
- Department of Biological Science California State University Fullerton CA USA.,Great Lakes Institute for Environmental Research University of Windsor Windsor ON Canada
| | - Denis Roy
- Department of Natural Resources and the Environment Wildlife and Fisheries Conservation Center and Center for Environmental Sciences and Engineering University of Connecticut Storrs CT USA
| | - Nigel E Hussey
- Biological Sciences University of Windsor Windsor ON Canada
| | | | - Kit M Kovacs
- Fram Centre Norwegian Polar Institute Tromsø Norway
| | | | - Bailey C McMeans
- Great Lakes Institute for Environmental Research University of Windsor Windsor ON Canada.,Department of Biology University of Toronto Mississauga Mississauga ON Canada
| | - Jörundur Svavarsson
- Faculty of Life and Environmental Sciences University of Iceland Reykjavík Iceland
| | - Steven T Kessel
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | - Sebastián Biton Porsmoguer
- Mediterranean Institute of Oceanography (MIO) UM 110 Aix-Marseille University CNRS/INSU Toulon University IRD Marseille France
| | - Sharon Wildes
- Auke Bay Laboratories AFSC/NMFS/NOAA/DOC Ted Stevens Marine Research Institute Juneau AK USA
| | - Cindy A Tribuzio
- Auke Bay Laboratories AFSC/NMFS/NOAA/DOC Ted Stevens Marine Research Institute Juneau AK USA
| | - Steven E Campana
- Faculty of Life and Environmental Sciences University of Iceland Reykjavík Iceland
| | - Stephen D Petersen
- Conservation and Research Department Assiniboine Park Zoo Winnipeg MB Canada
| | - R Dean Grubbs
- Coastal and Marine Laboratory Florida State University St. Teresa FL USA
| | - Daniel D Heath
- Great Lakes Institute for Environmental Research University of Windsor Windsor ON Canada
| | - Kevin J Hedges
- Arctic Aquatic Research Division Fisheries and Oceans Canada Winnipeg MB Canada
| | - Aaron T Fisk
- Great Lakes Institute for Environmental Research University of Windsor Windsor ON Canada
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20
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Pyle RL, Greene BD, Kosaki RK. Tosanoides obama, a new basslet (Perciformes, Percoidei, Serranidae) from deep coral reefs in the Northwestern Hawaiian Islands. Zookeys 2017:165-181. [PMID: 28138296 PMCID: PMC5240353 DOI: 10.3897/zookeys.641.11500] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 12/15/2016] [Indexed: 11/30/2022] Open
Abstract
The new species Tosanoidesobama is described from two specimens collected at a depth of 90–92 m off Kure Atoll and Pearl and Hermes Atoll, Northwestern Hawaiian Islands. It differs from the other two species of this genus in life color and in certain morphological characters, such as number of pored lateral-line scales, pectoral-fin rays, snout length, anterior three dorsal-fin spine lengths, dorsal-fin profile, and other characters. There are also substantial genetic differences from the other two species of Tosanoides (d ≈ 0.10 in mtDNA cytochrome oxidase I). The species is presently known only from the Northwestern Hawaiian Islands within the Papahānaumokuākea Marine National Monument.
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Affiliation(s)
- Richard L Pyle
- Bernice P. Bishop Museum, 1525 Bernice Street, Honolulu, Hawai'i 96817, USA
| | - Brian D Greene
- Association for Marine Exploration, 4075A Koko Dr., Honolulu, Hawai'i 96816
| | - Randall K Kosaki
- NOAA Papahānaumokuākea Marine National Monument, 1845 Wasp Blvd, Building 176, Honolulu, Hawai'i 96818, USA
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21
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Stern N, Rinkevich B, Goren M. Integrative approach revises the frequently misidentified species of Sardinella (Clupeidae) of the Indo-West Pacific Ocean. JOURNAL OF FISH BIOLOGY 2016; 89:2282-2305. [PMID: 27616166 DOI: 10.1111/jfb.13114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 07/08/2016] [Indexed: 06/06/2023]
Abstract
To deal with the difficulties of species differentiation and delimitation among the commercially important sardines from the genus Sardinella, an integrative approach was adopted, incorporating traditional taxonomy with four DNA markers (coI, cytb, 16s and nuclear rag2). Combining these methodologies has enabled a thorough re-description of three of the most common species of Sardinella of the Indo-west Pacific Ocean: white sardinella Sardinella albella, fringescale sardinella Sardinella fimbriata and the goldstripe sardinella Sardinella gibbosa, as well as a description of a new species, Gon's sardinella Sardinella goni, from the island of Boracay, Philippines. In addition, extensive widespread sampling of S. gibbosa reveals a significant genetic separation between the populations from the western Indian Ocean and the west Pacific Ocean, despite no supporting morphological differentiation. An updated morphological key of the species of Sardinella of the Indo-west Pacific Ocean is also provided in order to minimize future misidentifications within these economically important taxa. Finally, the genetic and morphological variabilities within and between the investigated species are used to discuss their biogeographical distribution and possible processes of speciation.
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Affiliation(s)
- N Stern
- Department of Zoology and the Steinhardt Museum of Natural History, Tel Aviv University, Tel Aviv, 69978, Israel.
- National Institute of Oceanography, Israel Oceanographic and Limnological Research, P. O. B. 8030, Haifa, 31080, Israel.
| | - B Rinkevich
- National Institute of Oceanography, Israel Oceanographic and Limnological Research, P. O. B. 8030, Haifa, 31080, Israel
| | - M Goren
- Department of Zoology and the Steinhardt Museum of Natural History, Tel Aviv University, Tel Aviv, 69978, Israel
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22
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Pyle RL, Kosaki RK. Prognathodes basabei, a new species of butterflyfish (Perciformes, Chaetodontidae) from the Hawaiian Archipelago. Zookeys 2016:137-52. [PMID: 27667937 PMCID: PMC5027661 DOI: 10.3897/zookeys.614.10200] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Accepted: 08/22/2016] [Indexed: 12/05/2022] Open
Abstract
A new species of the butterflyfish genus Prognathodes is described from specimens collected at a depth of 55–61 m off Pearl and Hermes Atoll, Northwestern Hawaiian Islands. This species has been observed by mixed-gas divers and from submersibles at depths ranging from 45–187 m throughout the Hawaiian Archipelago, with shallower sightings in the Northwestern Hawaiian Islands and deeper in the Main Hawaiian Islands. It is similar to Prognathodesguezei (Maugé and Bauchot 1976) from the western Indian Ocean, and at least one other undescribed species of Prognathodes from Palau, differing from these species in the number of soft dorsal-fin rays, size of head, and body depth. There are also differences in the life color, and a substantial genetic difference from the Palauan species (d » .08 in mtDNA cytochrome oxidase I).
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Affiliation(s)
- Richard L Pyle
- Bernice P. Bishop Museum, 1525 Bernice Street, Honolulu, Hawai'i 96817, USA
| | - Randall K Kosaki
- NOAA Papahānaumokuākea Marine National Monument, 1845 Wasp Blvd, Building 176, Honolulu, Hawai'i 96818, USA
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23
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DiBattista JD, Whitney J, Craig MT, Hobbs JPA, Rocha LA, Feldheim KA, Berumen ML, Bowen BW. Surgeons and suture zones: Hybridization among four surgeonfish species in the Indo-Pacific with variable evolutionary outcomes. Mol Phylogenet Evol 2016; 101:203-215. [DOI: 10.1016/j.ympev.2016.04.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 04/12/2016] [Accepted: 04/29/2016] [Indexed: 11/27/2022]
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24
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Phylogeny of deepwater snappers (Genus Etelis) reveals a cryptic species pair in the Indo-Pacific and Pleistocene invasion of the Atlantic. Mol Phylogenet Evol 2016; 100:361-371. [DOI: 10.1016/j.ympev.2016.04.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 04/04/2016] [Accepted: 04/05/2016] [Indexed: 11/19/2022]
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25
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Coleman RR, Eble JA, DiBattista JD, Rocha LA, Randall JE, Berumen ML, Bowen BW. Regal phylogeography: Range-wide survey of the marine angelfish Pygoplites diacanthus reveals evolutionary partitions between the Red Sea, Indian Ocean, and Pacific Ocean. Mol Phylogenet Evol 2016; 100:243-253. [PMID: 27068838 DOI: 10.1016/j.ympev.2016.04.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 04/04/2016] [Accepted: 04/05/2016] [Indexed: 11/27/2022]
Abstract
The regal angelfish (Pygoplites diacanthus; family Pomacanthidae) occurs on reefs from the Red Sea to the central Pacific, with an Indian Ocean/Rea Sea color morph distinct from a Pacific Ocean morph. To assess population differentiation and evaluate the possibility of cryptic evolutionary partitions in this monotypic genus, we surveyed mtDNA cytochrome b and two nuclear introns (S7 and RAG2) in 547 individuals from 15 locations. Phylogeographic analyses revealed four mtDNA lineages (d=0.006-0.015) corresponding to the Pacific Ocean, the Red Sea, and two admixed lineages in the Indian Ocean, a pattern consistent with known biogeographic barriers. Christmas Island in the eastern Indian Ocean had both Indian and Pacific lineages. Both S7 and RAG2 showed strong population-level differentiation between the Red Sea, Indian Ocean, and Pacific Ocean (ΦST=0.066-0.512). The only consistent population sub-structure within these three regions was at the Society Islands (French Polynesia), where surrounding oceanographic conditions may reinforce isolation. Coalescence analyses indicate the Pacific (1.7Ma) as the oldest extant lineage followed by the Red Sea lineage (1.4Ma). Results from a median-joining network suggest radiations of two lineages from the Red Sea that currently occupy the Indian Ocean (0.7-0.9Ma). Persistence of a Red Sea lineage through Pleistocene glacial cycles suggests a long-term refuge in this region. The affiliation of Pacific and Red Sea populations, apparent in cytochrome b and S7 (but equivocal in RAG2) raises the hypothesis that the Indian Ocean was recolonized from the Red Sea, possibly more than once. Assessing the genetic architecture of this widespread monotypic genus reveals cryptic evolutionary diversity that merits subspecific recognition. We recommend P.d. diacanthus and P.d. flavescens for the Pacific and Indian Ocean/Red Sea forms.
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Affiliation(s)
- Richard R Coleman
- Hawai'i Institute of Marine Biology, University of Hawai'i, PO Box 1346, Kāne'ohe, HI 96744, USA; Department of Biology, University of Hawai'i, Mānoa, 2500 Campus Rd, Honolulu, HI 96822, USA.
| | - Jeffrey A Eble
- University of West Florida, 11000 University Pkwy, Pensacola, FL 32514, USA
| | - Joseph D DiBattista
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia; Department of Environment and Agriculture, Curtin University, PO Box U1987, Perth, WA 6845, Australia
| | - Luiz A Rocha
- Section of Ichthyology, California Academy of Sciences, 55 Music Concourse Dr, San Francisco, CA 94118, USA
| | - John E Randall
- Bernice Pauahi Bishop Museum, 1525 Bernice St, Honolulu, HI 96817, USA
| | - Michael L Berumen
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
| | - Brian W Bowen
- Hawai'i Institute of Marine Biology, University of Hawai'i, PO Box 1346, Kāne'ohe, HI 96744, USA
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26
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Coluccia E, Deidda F, Cannas R, Lobina C, Cuccu D, Deiana AM, Salvadori S. Comparative cytogenetics of six Indo-Pacific moray eels (Anguilliformes: Muraenidae) by chromosomal banding and fluorescence in situ hybridization. JOURNAL OF FISH BIOLOGY 2015; 87:634-645. [PMID: 26242690 DOI: 10.1111/jfb.12737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Accepted: 06/09/2015] [Indexed: 06/04/2023]
Abstract
A comparative cytogenetic analysis, using both conventional staining techniques and fluorescence in situ hybridization, of six Indo-Pacific moray eels from three different genera (Gymnothorax fimbriatus, Gymnothorax flavimarginatus, Gymnothorax javanicus, Gymnothorax undulatus, Echidna nebulosa and Gymnomuraena zebra), was carried out to investigate the chromosomal differentiation in the family Muraenidae. Four species displayed a diploid chromosome number 2n = 42, which is common among the Muraenidae. Two other species, G. javanicus and G. flavimarginatus, were characterized by different chromosome numbers (2n = 40 and 2n = 36). For most species, a large amount of constitutive heterochromatin was detected in the chromosomes, with species-specific C-banding patterns that enabled pairing of the homologous chromosomes. In all species, the major ribosomal genes were localized in the guanine-cytosine-rich region of one chromosome pair, but in different chromosomal locations. The (TTAGGG)n telomeric sequences were mapped onto chromosomal ends in all muraenid species studied. The comparison of the results derived from this study with those available in the literature confirms a substantial conservation of the diploid chromosome number in the Muraenidae and supports the hypothesis that rearrangements have occurred that have diversified their karyotypes. Furthermore, the finding of two species with different diploid chromosome numbers suggests that additional chromosomal rearrangements, such as Robertsonian fusions, have occurred in the karyotype evolution of the Muraenidae.
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Affiliation(s)
- E Coluccia
- Dipartimento di Scienze della Vita e dell'Ambiente, sezione Biologia Animale ed Ecologia, Università degli Studi di Cagliari, via T. Fiorelli, 1, 09126, Cagliari, Italy
| | - F Deidda
- Dipartimento di Scienze della Vita e dell'Ambiente, sezione Biologia Animale ed Ecologia, Università degli Studi di Cagliari, via T. Fiorelli, 1, 09126, Cagliari, Italy
| | - R Cannas
- Dipartimento di Scienze della Vita e dell'Ambiente, sezione Biologia Animale ed Ecologia, Università degli Studi di Cagliari, via T. Fiorelli, 1, 09126, Cagliari, Italy
| | - C Lobina
- Dipartimento di Scienze della Vita e dell'Ambiente, sezione Biologia Animale ed Ecologia, Università degli Studi di Cagliari, via T. Fiorelli, 1, 09126, Cagliari, Italy
| | - D Cuccu
- Dipartimento di Scienze della Vita e dell'Ambiente, sezione Biologia Animale ed Ecologia, Università degli Studi di Cagliari, via T. Fiorelli, 1, 09126, Cagliari, Italy
| | - A M Deiana
- Dipartimento di Scienze della Vita e dell'Ambiente, sezione Biologia Animale ed Ecologia, Università degli Studi di Cagliari, via T. Fiorelli, 1, 09126, Cagliari, Italy
| | - S Salvadori
- Dipartimento di Scienze della Vita e dell'Ambiente, sezione Biologia Animale ed Ecologia, Università degli Studi di Cagliari, via T. Fiorelli, 1, 09126, Cagliari, Italy
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Gaither MR, Bernal MA, Coleman RR, Bowen BW, Jones SA, Simison WB, Rocha LA. Genomic signatures of geographic isolation and natural selection in coral reef fishes. Mol Ecol 2015; 24:1543-57. [PMID: 25753379 DOI: 10.1111/mec.13129] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Revised: 02/20/2015] [Accepted: 02/24/2015] [Indexed: 01/17/2023]
Abstract
The drivers of speciation remain among the most controversial topics in evolutionary biology. Initially, Darwin emphasized natural selection as a primary mechanism of speciation, but the architects of the modern synthesis largely abandoned that view in favour of divergence by geographic isolation. The balance between selection and isolation is still at the forefront of the evolutionary debate, especially for the world's tropical oceans where biodiversity is high, but isolating barriers are few. Here, we identify the drivers of speciation in Pacific reef fishes of the genus Acanthurus by comparative genome scans of two peripheral populations that split from a large Central-West Pacific lineage at roughly the same time. Mitochondrial sequences indicate that populations in the Hawaiian Archipelago and the Marquesas Islands became isolated approximately 0.5 Ma. The Hawaiian lineage is morphologically indistinguishable from the widespread Pacific form, but the Marquesan form is recognized as a distinct species that occupies an unusual tropical ecosystem characterized by upwelling, turbidity, temperature fluctuations, algal blooms and little coral cover. An analysis of 3737 SNPs reveals a strong signal of selection at the Marquesas, with 59 loci under disruptive selection including an opsin Rh2 locus. While both the Hawaiian and Marquesan populations indicate signals of drift, the former shows a weak signal of selection that is comparable with populations in the Central-West Pacific. This contrast between closely related lineages reveals one population diverging due primarily to geographic isolation and genetic drift, and the other achieving taxonomic species status under the influence of selection.
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Affiliation(s)
- Michelle R Gaither
- School of Biological and Biomedical Sciences, Durham University, South Road, Durham, DH1 3LE, UK; Section of Ichthyology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA, 94118, USA
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Coleman RR, Gaither MR, Kimokeo B, Stanton FG, Bowen BW, Toonen RJ. Large-scale introduction of the Indo-Pacific damselfishAbudefduf vaigiensisinto Hawai'i promotes genetic swamping of the endemic congenerA. abdominalis. Mol Ecol 2014; 23:5552-65. [DOI: 10.1111/mec.12952] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 09/29/2014] [Accepted: 09/30/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Richard R. Coleman
- Hawai'i Institute of Marine Biology; University of Hawai'i; P.O. Box 1346 Kaneohe HI 96744 USA
- Department of Biology; University of Hawai'i; Mānoa, 2450 Campus Road, Dean Hall Room 2 Honolulu HI 96822 USA
| | - Michelle R. Gaither
- Section of Ichthyology; California Academy of Sciences; 55 Music Concourse Drive San Francisco CA 94118 USA
- School of Biological and Biomedical Sciences; Durham University; South Road Durham DH1 3LE UK
| | - Bethany Kimokeo
- Hawai'i Institute of Marine Biology; University of Hawai'i; P.O. Box 1346 Kaneohe HI 96744 USA
| | - Frank G. Stanton
- University of Hawai'i Community Colleges; Leeward Community College; 96-045 Ala Ike Pearl City HI 96782 USA
| | - Brian W. Bowen
- Hawai'i Institute of Marine Biology; University of Hawai'i; P.O. Box 1346 Kaneohe HI 96744 USA
| | - Robert J. Toonen
- Hawai'i Institute of Marine Biology; University of Hawai'i; P.O. Box 1346 Kaneohe HI 96744 USA
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29
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Santini F, Carnevale G, Sorenson L. First timetree of Sphyraenidae (Percomorpha) reveals a Middle Eocene crown age and an Oligo–Miocene radiation of barracudas. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/11250003.2014.962630] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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30
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Collar DC, Reece JS, Alfaro ME, Wainwright PC, Mehta RS. Imperfect Morphological Convergence: Variable Changes in Cranial Structures Underlie Transitions to Durophagy in Moray Eels. Am Nat 2014; 183:E168-84. [DOI: 10.1086/675810] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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31
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Andrews KR, Moriwake VN, Wilcox C, Grau EG, Kelley C, Pyle RL, Bowen BW. Phylogeographic analyses of submesophotic snappers Etelis coruscans and Etelis "marshi" (family Lutjanidae) reveal concordant genetic structure across the Hawaiian Archipelago. PLoS One 2014; 9:e91665. [PMID: 24722193 PMCID: PMC3982960 DOI: 10.1371/journal.pone.0091665] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 02/13/2014] [Indexed: 11/18/2022] Open
Abstract
The Hawaiian Archipelago has become a natural laboratory for understanding genetic connectivity in marine organisms as a result of the large number of population genetics studies that have been conducted across this island chain for a wide taxonomic range of organisms. However, population genetic studies have been conducted for only two species occurring in the mesophotic or submesophotic zones (30+m) in this archipelago. To gain a greater understanding of genetic connectivity in these deepwater habitats, we investigated the genetic structure of two submesophotic fish species (occurring ∼200-360 m) in this archipelago. We surveyed 16 locations across the archipelago for submesophotic snappers Etelis coruscans (N = 787) and E. "marshi" (formerly E. carbunculus; N = 770) with 436-490 bp of mtDNA cytochrome b and 10-11 microsatellite loci. Phylogeographic analyses reveal no geographic structuring of mtDNA lineages and recent coalescence times that are typical of shallow reef fauna. Population genetic analyses reveal no overall structure across most of the archipelago, a pattern also typical of dispersive shallow fishes. However some sites in the mid-archipelago (Raita Bank to French Frigate Shoals) had significant population differentiation. This pattern of no structure between ends of the Hawaiian range, and significant structure in the middle, was previously observed in a submesophotic snapper (Pristipomoides filamentosus) and a submesophotic grouper (Hyporthodus quernus). Three of these four species also have elevated genetic diversity in the mid-archipelago. Biophysical larval dispersal models from previous studies indicate that this elevated diversity may result from larval supplement from Johnston Atoll, ∼800 km southwest of Hawaii. In this case the boundaries of stocks for fishery management cannot be defined simply in terms of geography, and fishery management in Hawaii may need to incorporate external larval supply into management plans.
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Affiliation(s)
- Kimberly R. Andrews
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kane'ohe, Hawaii, United States of America
- School of Biological & Biomedical Sciences, Durham University, South Road, United Kingdom
| | - Virginia N. Moriwake
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kane'ohe, Hawaii, United States of America
- Department of Oceanography, University of Hawai'i, Honolulu, Hawaii, United States of America
| | - Christie Wilcox
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kane'ohe, Hawaii, United States of America
- Cell and Molecular Biology Graduate Program, University of Hawai'i, Honolulu, Hawaii, United States of America
| | - E. Gordon Grau
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kane'ohe, Hawaii, United States of America
| | - Christopher Kelley
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kane'ohe, Hawaii, United States of America
- Hawai'i Undersea Research Lab, University of Hawai'i, Honolulu, Hawaii, United States of America
| | - Richard L. Pyle
- Bernice P. Bishop Museum, Honolulu, Hawaii, United States of America
| | - Brian W. Bowen
- Hawai'i Institute of Marine Biology, University of Hawai'i, Kane'ohe, Hawaii, United States of America
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Santini F, Kong X, Sorenson L, Carnevale G, Mehta RS, Alfaro ME. A multi-locus molecular timescale for the origin and diversification of eels (Order: Anguilliformes). Mol Phylogenet Evol 2013; 69:884-94. [PMID: 23831455 DOI: 10.1016/j.ympev.2013.06.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2012] [Revised: 05/21/2013] [Accepted: 06/24/2013] [Indexed: 11/25/2022]
Abstract
Anguilliformes are an ecologically diverse group of predominantly marine fishes whose members are easily recognized by their extremely elongate bodies, and universal lack of pelvic fins. Recent studies based on mitochondrial loci, including full mitogenomes, have called into question the monophyly of both the Anguilliformes, which appear to be paraphyletic without the inclusion of the Saccopharyngiformes (gulper eels and allies), as well as other more commonly known eel families (e.g., Congridae, Serrivomeridae). However, no study to date has investigated anguilliform interrelationships using nuclear loci. Here we present a new phylogenetic hypothesis for the Anguilliformes based on five markers (the nuclear loci Early Growth Hormone 3, Myosin Heavy Polypeptide 6 and Recombinase Activating Gene 1, as well as the mitochondrial genes Cytochrome b and Cytochrome Oxidase I). Our sampling spans 148 species and includes 19 of the 20 extant families of anguilliforms and saccopharyngiforms. Maximum likelihood analysis reveals that saccopharyngiform eels are deeply nested within the anguilliforms, and supports the non-monophyly of Congridae and Nettastomatidae, as well as that of Derichthyidae and Chlopsidae. Our analyses suggest that Protanguilla may be the sister group of the Synaphobranchidae, though the recent hypothesis that this species is the sister group to all other anguilliforms cannot be rejected. The molecular phylogeny, time-calibrated using a Bayesian relaxed clock approach and seven fossil calibration points, reveals a Late Cretaceous origin of this expanded anguilliform clade (stem age ~116 Ma, crown age ~99 Ma). Most major (family level) lineages originated between the end of the Cretaceous and Early Eocene, suggesting that anguilliform radiation may have been facilitated by the recovery of marine ecosystems following the KP extinction.
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Affiliation(s)
- Francesco Santini
- University of California Los Angeles, Department of Ecology and Evolutionary Biology, 610 Charles E Young Drive South, Los Angeles, CA 90095, USA; Università degli Studi di Torino, Dipartimento di Scienze della Terra, Via Valperga Caluso 35, 10125 Torino, Italy.
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33
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Reece JS, Mehta RS. Evolutionary history of elongation and maximum body length in moray eels (Anguilliformes: Muraenidae). Biol J Linn Soc Lond 2013. [DOI: 10.1111/bij.12098] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Joshua S. Reece
- Department of Ecology and Evolutionary Biology; Long Marine Lab; University of California; Santa Cruz; CA; 95060; USA
| | - Rita S. Mehta
- Department of Ecology and Evolutionary Biology; Long Marine Lab; University of California; Santa Cruz; CA; 95060; USA
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34
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Fouquet A, Loebmann D, Castroviejo-Fisher S, Padial JM, Orrico VG, Lyra ML, Roberto IJ, Kok PJ, Haddad CF, Rodrigues MT. From Amazonia to the Atlantic forest: Molecular phylogeny of Phyzelaphryninae frogs reveals unexpected diversity and a striking biogeographic pattern emphasizing conservation challenges. Mol Phylogenet Evol 2012; 65:547-61. [DOI: 10.1016/j.ympev.2012.07.012] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Revised: 07/13/2012] [Accepted: 07/14/2012] [Indexed: 12/15/2022]
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35
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Tang KL, Fielitz C. Phylogeny of moray eels (Anguilliformes: Muraenidae), with a revised classification of true eels (Teleostei: Elopomorpha: Anguilliformes). ACTA ACUST UNITED AC 2012; 24:55-66. [DOI: 10.3109/19401736.2012.710226] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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36
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Daly-Engel TS, Randall JE, Bowen BW. Is the Great Barracuda ( Sphyraena barracuda) a reef fish or a pelagic fish? The phylogeographic perspective. MARINE BIOLOGY 2012; 159:975-985. [PMID: 25594680 PMCID: PMC3784357 DOI: 10.1007/s00227-012-1878-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Current taxonomy indicates a single global species of the Great Barracuda (Sphyraena barracuda) despite differences in color and behavior between Atlantic and Pacific forms. To investigate these differences and qualify the dispersal characteristics of this unique coastal- pelagic teleost (bony fish), we conducted a global phylogeographic survey of 246 specimens from thirteen sampling locations using a 629-base pair fragment of mtDNA cytochrome b. Data indicate high overall gene flow in the Indo-Pacific over large distances (>16,500 km) bridging several biogeographic barriers. The West Atlantic population contains an mtDNA lineage that is divergent from the Indo-Pacific (d = 1.9%), while the East Atlantic (N = 23) has two mutations (d = 0.6%) apart from the Indo-Pacific. While we cannot rule out distinct evolutionary partitions among ocean basins based on behavior, coloration, and near-monophyly between Atlantic and Indo-Pacific subpopulations, more investigation is required before taxonomic status is revised. Overall, the pattern of high global dispersal and connectivity in S. barracuda more closely resembles those reported for large oceanic predators than reef-associated teleosts.
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Affiliation(s)
- Toby S Daly-Engel
- Department of Zoology, University of Hawaii at Mānoa, Honolulu, HI 96822, USA
| | - John E Randall
- Bishop Museum, 1525 Bernice Street, Honolulu, HI 96817-2704, USA
| | - Brian W Bowen
- Hawaii Institute of Marine Biology, University of Hawaii, Kaneohe, HI 96744, USA
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37
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Gaither MR, Jones SA, Kelley C, Newman SJ, Sorenson L, Bowen BW. High connectivity in the deepwater snapper Pristipomoides filamentosus (Lutjanidae) across the Indo-Pacific with isolation of the Hawaiian archipelago. PLoS One 2011; 6:e28913. [PMID: 22216141 PMCID: PMC3245230 DOI: 10.1371/journal.pone.0028913] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Accepted: 11/17/2011] [Indexed: 11/18/2022] Open
Abstract
In the tropical Indo-Pacific, most phylogeographic studies have focused on the shallow-water taxa that inhabit reefs to approximately 30 m depth. Little is known about the large predatory fishes, primarily snappers (subfamily Etelinae) and groupers (subfamily Epinephelinae) that occur at 100-400 m. These long-lived, slow-growing species support fisheries across the Indo-Pacific, yet no comprehensive genetic surveys within this group have been conducted. Here we contribute the first range-wide survey of a deepwater Indo-Pacific snapper, Pristipomoides filamentosus, with special focus on Hawai'i. We applied mtDNA cytochrome b and 11 microsatellite loci to 26 samples (N=1,222) collected across 17,000 km from Hawai'i to the western Indian Ocean. Results indicate that P. filamentosus is a highly dispersive species with low but significant population structure (mtDNA Φ(ST)=0.029, microsatellite F(ST)=0.029) due entirely to the isolation of Hawai'i. No population structure was detected across 14,000 km of the Indo-Pacific from Tonga in the Central Pacific to the Seychelles in the western Indian Ocean, a pattern rarely observed in reef species. Despite a long pelagic phase (60-180 days), interisland dispersal as adults, and extensive gene flow across the Indo-Pacific, P. filamentosus is unable to maintain population connectivity with Hawai'i. Coalescent analyses indicate that P. filamentosus may have colonized Hawai'i 26 K-52 K y ago against prevailing currents, with dispersal away from Hawai'i dominating migration estimates. P. filamentosus harbors low genetic diversity in Hawai'i, a common pattern in marine fishes, and our data indicate a single archipelago-wide stock. However, like the Hawaiian Grouper, Hyporthodus quernus, this snapper had several significant pairwise comparisons (F(ST)) clustered around the middle of the archipelago (St. Rogatien, Brooks Banks, Gardner) indicating that this region may be isolated or (more likely) receives input from Johnston Atoll to the south.
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Affiliation(s)
- Michelle R Gaither
- Hawai'i Institute of Marine Biology, University of Hawai'i at Mānoa, Kane'ohe, Hawai'i, USA.
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