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Fan F, Pei L, Jiang L, Ye Y, Liu Y, Liu B. Gene Rearrangements in the Mitochondrial Genome of Gonatopsis borealis and Onychoteuthis compacta Reveal Their Phylogenetic Implications for Oegopsida. Biochem Genet 2024:10.1007/s10528-024-10707-7. [PMID: 38466493 DOI: 10.1007/s10528-024-10707-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 01/16/2024] [Indexed: 03/13/2024]
Abstract
The complete mitochondrial genome provides crucial information for comprehending gene rearrangement, molecular evolution, and phylogenetic analysis. Here, we have determined the complete mitogenome sequence of Gonatopsis borealis and Onychoteuthis compacta for the first time. Their genome sizes were 20,148 bp and 20,491 bp, respectively, including 18 protein-coding genes, COI-COIII, ATP6, and ATP8 are duplicated, 23 transfer RNA genes, and 2 ribosomal RNA (rRNA) genes (12S and 16S rRNA). Specifically, the overall A+T content is 70.69% and 72.67%. It shows a significant AT bias. The whole mitogenomes indicate positive AT skew (0.070 and 0.062). Furthermore, the gene order has been rearranged within Oegopsida. The tandem duplication random loss model was determined as most likely to explain the observed gene rearrangements. Phylogenetic analysis was performed, and the result tree was found to be consistent with the morphological identification classification. Estimation of divergence time for 35 species showed that the main differentiation of Oegopsida occurred in 140.70 Mya. These results will help to better understand the gene rearrangements and evolution of G. borealis and O. compacta and lay a foundation for further phylogeny genetic studies of Oegopsida.
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Affiliation(s)
- Fan Fan
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Liyi Pei
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Lihua Jiang
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China.
| | - Yingying Ye
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Yifan Liu
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Bilin Liu
- College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, China
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2
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Taite M, Fernández-Álvarez FÁ, Braid HE, Bush SL, Bolstad K, Drewery J, Mills S, Strugnell JM, Vecchione M, Villanueva R, Voight JR, Allcock AL. Genome skimming elucidates the evolutionary history of Octopoda. Mol Phylogenet Evol 2023; 182:107729. [PMID: 36773750 DOI: 10.1016/j.ympev.2023.107729] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 12/10/2022] [Accepted: 02/05/2023] [Indexed: 02/12/2023]
Abstract
Phylogenies for Octopoda have, until now, been based on morphological characters or a few genes. Here we provide the complete mitogenomes and the nuclear 18S and 28S ribosomal genes of twenty Octopoda specimens, comprising 18 species of Cirrata and Incirrata, representing 13 genera and all five putative families of Cirrata (Cirroctopodidae, Cirroteuthidae, Grimpoteuthidae, Opisthoteuthidae and Stauroteuthidae) and six families of Incirrata (Amphitretidae, Argonautidae, Bathypolypodidae, Eledonidae, Enteroctopodidae, and Megaleledonidae) which were assembled using genome skimming. Phylogenetic trees were built using Maximum Likelihood and Bayesian Inference with several alignment matrices. All mitochondrial genomes had the 'typical' genome composition and gene order previously reported for octopodiforms, except Bathypolypus ergasticus, which appears to lack ND5, two tRNA genes that flank ND5 and two other tRNA genes. Argonautoidea was revealed as sister to Octopodidae by the mitochondrial protein-coding gene dataset, however, it was recovered as sister to all other incirrate octopods with strong support in an analysis using nuclear rRNA genes. Within Cirrata, our study supports two existing classifications suggesting neither is likely in conflict with the true evolutionary history of the suborder. Genome skimming is useful in the analysis of phylogenetic relationships within Octopoda; inclusion of both mitochondrial and nuclear data may be key.
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Affiliation(s)
- M Taite
- School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, Ireland
| | - F Á Fernández-Álvarez
- School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, Ireland; Institut de Ciències del Mar (CSIC), Passeig Marítim 37-49, E-08003 Barcelona, Spain.
| | - H E Braid
- AUT Lab for Cephalopod Ecology & Systematics, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand
| | - S L Bush
- Department of Invertebrate Zoology, Smithsonian National Museum of Natural History, Washington DC 20560, USA.
| | - K Bolstad
- AUT Lab for Cephalopod Ecology & Systematics, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.
| | - J Drewery
- Marine Scotland, Marine Laboratory, 375 Victoria Road, Aberdeen AB11 9DB, UK.
| | - S Mills
- National Institute of Water and Atmospheric Research, 301 Evans Bay Parade, Wellington, New Zealand.
| | - J M Strugnell
- Centre for Sustainable Tropical Fisheries and Aquaculture, College of Science and Engineering, James Cook University, Townsville, Qld, Australia.
| | - M Vecchione
- National Systematics Laboratory, Office of Science and Technology, NOAA Fisheries, Washington, DC, USA; Department of Invertebrate Zoology, Smithsonian National Museum of Natural History, Washington, DC, USA.
| | - R Villanueva
- Institut de Ciències del Mar (CSIC), Passeig Marítim 37-49, E-08003 Barcelona, Spain.
| | - J R Voight
- Negaunee Integrative Research Center, Field Museum of Natural History, 1400 S DuSable Lake Shore Dr., Chicago, IL 60605, USA.
| | - A L Allcock
- School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, Ireland.
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3
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Finding a home for the ram’s horn squid: phylogenomic analyses support Spirula spirula (Cephalopoda: Decapodiformes) as a close relative of Oegopsida. ORG DIVERS EVOL 2022. [DOI: 10.1007/s13127-022-00583-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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4
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Exceptional soft-tissue preservation of Jurassic Vampyronassa rhodanica provides new insights on the evolution and palaeoecology of vampyroteuthids. Sci Rep 2022; 12:8292. [PMID: 35739131 PMCID: PMC9225997 DOI: 10.1038/s41598-022-12269-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/26/2022] [Indexed: 11/27/2022] Open
Abstract
Although soft tissues of coleoid cephalopods record key evolutionary adaptations, they are rarely preserved in the fossil record. This prevents meaningful comparative analyses between extant and fossil forms, as well as the development of a relative timescale for morphological innovations. However, unique 3-D soft tissue preservation of Vampyronassa rhodanica (Vampyromorpha) from the Jurassic Lagerstätte of La Voulte-sur-Rhône (Ardèche, France) provides unparalleled opportunities for the observation of these tissues in the oldest likely relative of extant Vampyroteuthis infernalis. Synchrotron X-ray microtomography and reconstruction of V. rhodanica allowed, for the first time, a high-resolution re-examination of external and internal morphology, and comparison with other fossil and extant species, including V. infernalis. The new data obtained demonstrate that some key V. infernalis characters, such as its unique type of sucker attachment, were already present in Jurassic taxa. Nonetheless, compared with the extant form, which is considered to be an opportunistic detritivore and zooplanktivore, many characters in V. rhodanica indicate a pelagic predatory lifestyle. The contrast in trophic niches between the two taxa is consistent with the hypothesis that these forms diversified in continental shelf environments prior to the appearance of adaptations in the Oligocene leading to their modern deep-sea mode of life.
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Stenvers VI, Sherlock RE, Reisenbichler KR, Robison BH. ROV observations reveal infection dynamics of gill parasites in midwater cephalopods. Sci Rep 2022; 12:8282. [PMID: 35585085 PMCID: PMC9117243 DOI: 10.1038/s41598-022-11844-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 04/28/2022] [Indexed: 11/09/2022] Open
Abstract
Gill parasites of coleoid cephalopods are frequently observed during remotely operated vehicle (ROV) dives in the Monterey Submarine Canyon. However, little knowledge exists on the identity of the parasite species or their effects on the cephalopod community. With the help of ROV-collected specimens and in situ footage from the past 27 years, we report on their identity, prevalence and potential infection strategy. Gill parasites were genetically and morphologically identified from collected specimens of Chiroteuthis calyx, Vampyroteuthis infernalis and Gonatus spp. In situ prevalence was estimated from video footage for C. calyx, Galiteuthis spp., Taonius spp. and Japetella diaphana, enabled by their transparent mantle tissue. The most common parasite was identified as Hochbergia cf. moroteuthensis, a protist of unresolved taxonomic ranking. We provide the first molecular data for this parasite and show a sister group relationship to the dinoflagellate genus Oodinium. Hochbergia cf. moroteuthensis was most commonly observed in adult individuals of all species and was sighted year round over the analyzed time period. In situ prevalence was highest in C. calyx (75%), followed by Galiteuthis spp. (29%), Taonius spp. (27%) and J. diaphana (7%). A second parasite, not seen on the in situ footage, but occurring within the gills of Gonatus berryi and Vampyroteuthis infernalis, could not be found in the literature or be identified through DNA barcoding. The need for further investigation is highlighted, making this study a starting point for unravelling ecological implications of the cephalopod-gill-parasite system in deep pelagic waters.
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Affiliation(s)
- Vanessa I Stenvers
- GEOMAR, Helmholtz Centre for Ocean Research Kiel, Düsternbrooker Weg 20, 24105, Kiel, Germany. .,Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, 20013, USA.
| | - Rob E Sherlock
- Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA, 95039-9644, USA
| | - Kim R Reisenbichler
- Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA, 95039-9644, USA
| | - Bruce H Robison
- Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA, 95039-9644, USA
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Fuchs D, Hoffmann R, Klug C. Evolutionary development of the cephalopod arm armature: a review. SWISS JOURNAL OF PALAEONTOLOGY 2021; 140:27. [PMID: 34956072 PMCID: PMC8688392 DOI: 10.1186/s13358-021-00241-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
The cephalopod arm armature is certainly one of the most important morphological innovations responsible for the evolutionary success of the Cephalopoda. New palaeontological discoveries in the recent past afford to review and reassess origin and homology of suckers, sucker rings, hooks, and cirri. Since a priori character state reconstructions are still ambiguous, we suggest and discuss three different evolutionary scenarios. Each of them is based on the following assumptions: (1) Neocoleoidea uniting extant Decabrachia and Octobrachia is monophyletic (= proostracum-bearing coleoids); (2) extinct Belemnitida and Diplobelida are stem decabrachians; (3) proostracum-less coleoids (Hematitida, Donovaniconida, Aulacoceratida) represent stem-neocoleoids; (4) Ammonoidea and Bactritoidea are stem coleoids. We consider a scenario where belemnoid hooks derived from primitive suckers as well-supported. Regarding belemnoid hooks and suckers as homologues implies that belemnoid, oegopsid, and probably ammonoid arm hooks arose through parallel evolution. Our conclusions challenge the widespread opinion, whereupon belemnoid hooks evolved de novo, and instead support earlier ideas formulated by Sigurd von Boletzky.
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Affiliation(s)
- Dirk Fuchs
- Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Straße 10, 80333 Munich, Germany
| | - René Hoffmann
- Institute of Geology, Mineralogy, & Geophysics, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - Christian Klug
- Paläontologisches Institut und Museum, Universität Zürich, Karl-Schmid-Strasse 4, 8006 Zurich, Switzerland
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Mesozoic origin of coleoid cephalopods and their abrupt shifts of diversification patterns. Mol Phylogenet Evol 2021; 166:107331. [PMID: 34687843 DOI: 10.1016/j.ympev.2021.107331] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/25/2021] [Accepted: 10/18/2021] [Indexed: 11/22/2022]
Abstract
Coleoids are the most diverse group of cephalopod mollusks. While their origin is date during the Mesozoic, the diversification pattern is unknown. However, two hypotheses have been proposed. The first suggests an increasing diversification rate after the Cretaceous-Paleogene extinction event (K-Pg) as consequence of empty habitats left by the ammonites and belemnites. The second hypothesis proposes a mid-Cenozoic increase in diversification rate related to distributional changes during ice ages and biotic interactions. To test these hypotheses, we estimated a lineage through time (LTT) and the gamma-statistic along with model-based diversification rates. These analyses were conducted on a dated molecular phylogeny for coleoids that we reconstructed using five molecular markers (cytochrome b, 16S rRNA, cytochrome oxidase I, rhodopsin, and PAX-6). Our divergence time estimation suggests that coleoids originated in the Mesozoic Era (Middle Triassic) and that both main clades (Decapodiformes and Octopodiformes) diverged in the Cretaceous/Jurassic Period. The LTT, gamma statistic, and diversification rates inferred with the Bayesian Analysis of Macro-evolutionary Mixtures (BAMM), indicate an acceleration in diversification rate over time since the origin of coleoids. Additionally, BAMM allowed us to detect abrupt increases in diversification rate before and after the K-Pg boundary. Our results partially support both hypotheses as all analyses indicate that the coleoid diversification rate was increasing during the Cenozoic. However, our results also indicate increasing diversification rates before the K-Pg boundary. We propose that the radiation of coleoids has been shaped by an acceleration in diversification rate over time, including exceptional episodes of abrupt increases before and after the K-Pg boundary.
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8
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Fernández-Álvarez FÁ, Taite M, Vecchione M, Villanueva R, Allcock AL. A phylogenomic look into the systematics of oceanic squids (order Oegopsida). Zool J Linn Soc 2021. [DOI: 10.1093/zoolinnean/zlab069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Abstract
Oceanic squids of the order Oegopsida are ecologically and economically important members of the pelagic environment. They are the most diverse group of cephalopods, with 24 families that are divergent morphologically. Despite their importance, knowledge of phylogenetic relationships among oegopsids is less than that among neritic cephalopods. Here, we provide the complete mitogenomes and the nuclear 18S and 28S ribosomal genes for 35 selected oceanic squids, which were generated using genome skimming. We performed maximum likelihood and Bayesian inference analyses that included 21 of the 24 oegopsid families. In our analyses, the architeuthid, chiroteuthid and enoploteuthid family groups, which have been proposed previously based on morphological and natural history characteristics, were retrieved as monophyletic. The morphologically divergent Cranchiidae formed a well-supported clade with families Ommastrephidae and Thysanoteuthidae, with a unique mitochondrial gene order. The family Lycoteuthidae was revealed as paraphyletic and contained Pyroteuthidae. Thus, the two lycoteuthid subfamilies are herein elevated to family level, increasing the number of oegopsid squid families to 25. In order to describe the diversity and evolutionary trends of oegopsid squids accurately, the superfamilies Architeuthoidea, Chiroteuthoidea, Cranchioidea and Enoploteuthoidea are resurrected from the literature, and the superfamilies Cycloteuthoidea, Octopoteuthoidea and Pholidoteuthoidea are proposed. The phylogenetic positions of Gonatidae, Histioteuthidae and Onychoteuthidae were not stable in our phylogenetic analyses and are not assigned to a superfamily. This study supports the utility of genome skimming to solve the phylogenetic relationships of oceanic squids.
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Affiliation(s)
| | - Morag Taite
- Ryan Institute and School of Natural Sciences, National University of Ireland Galway, Galway, Ireland
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Penglais, Aberystwyth, Ceredigion, UK
| | - Michael Vecchione
- NOAA/NMFS National Systematics Laboratory, National Museum of Natural History, Washington, DC, USA
| | - Roger Villanueva
- Institut de Ciències del Mar (CSIC), Passeig Marítim 37–49, E-08003 Barcelona, Spain
| | - A Louise Allcock
- Ryan Institute and School of Natural Sciences, National University of Ireland Galway, Galway, Ireland
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Smith CPA, Landman NH, Bardin J, Kruta I. New evidence from exceptionally "well-preserved" specimens sheds light on the structure of the ammonite brachial crown. Sci Rep 2021; 11:11862. [PMID: 34088905 PMCID: PMC8178333 DOI: 10.1038/s41598-021-89998-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 05/05/2021] [Indexed: 02/05/2023] Open
Abstract
Ammonite soft body remains are rarely preserved. One of the biggest enigmas is the morphology of the ammonite brachial crown that has, up till now, never been recovered. Recently, mysterious hook-like structures have been reported in multiple specimens of Scaphitidae, a large family of heteromorph Late Cretaceous ammonites. A previous examination of these structures revealed that they belong to the ammonites. Their nature, however, remained elusive. Here, we exploit tomographic data to study their arrangement in space in order to clarify this matter. After using topological data analyses and comparing their morphology, number, and distribution to other known cephalopod structures, in both extant and extinct taxa, we conclude that these hook-like structures represent part of the brachial crown armature. Therefore, it appears that there are at least three independent evolutionary origins of hooks: in belemnoids, oegospids, and now in ammonites. Finally, we propose for the first time a hypothetical reconstruction of an ammonite brachial crown.
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Affiliation(s)
- C. P. A. Smith
- grid.462242.40000 0004 0417 3208Biogéosciences, UMR 6282, Université Bourgogne Franche-Comté-CNRS-EPHE, 6 boulevard Gabriel, 21000 Dijon, France
| | - N. H. Landman
- grid.241963.b0000 0001 2152 1081Division of Paleontology (Invertebrates), American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024 USA
| | - J. Bardin
- grid.462844.80000 0001 2308 1657CR2P – Centre de Recherche en Paléontologie, Paris, UMR 7207, Sorbonne Université-MNHN-CNRS, 4 place Jussieu, 75005 Paris, France
| | - I. Kruta
- grid.241963.b0000 0001 2152 1081Division of Paleontology (Invertebrates), American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024 USA ,grid.462844.80000 0001 2308 1657CR2P – Centre de Recherche en Paléontologie, Paris, UMR 7207, Sorbonne Université-MNHN-CNRS, 4 place Jussieu, 75005 Paris, France
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10
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Montague TG, Rieth IJ, Axel R. Embryonic development of the camouflaging dwarf cuttlefish, Sepia bandensis. Dev Dyn 2021; 250:1688-1703. [PMID: 34028136 DOI: 10.1002/dvdy.375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The dwarf cuttlefish Sepia bandensis, a camouflaging cephalopod from the Indo-Pacific, is a promising new model organism for neuroscience, developmental biology, and evolutionary studies. Cuttlefish dynamically camouflage to their surroundings by altering the color, pattern, and texture of their skin. The skin's "pixels" (chromatophores) are controlled by motor neurons projecting from the brain. Thus, camouflage is a visible representation of neural activity. In addition to camouflage, the dwarf cuttlefish uses dynamic skin patterns for social communication. Despite more than 500 million years of evolutionary separation, cuttlefish and vertebrates converged to form limbs, camera-type eyes and a closed circulatory system. Moreover, cuttlefish have a striking ability to regenerate their limbs. Interrogation of these unique biological features will benefit from the development of a new set of tools. Dwarf cuttlefish reach sexual maturity in 4 months, they lay dozens of eggs over their 9-month lifespan, and the embryos develop to hatching in 1 month. RESULTS Here, we describe methods to culture dwarf cuttlefish embryos in vitro and define 25 stages of cuttlefish development. CONCLUSION This staging series serves as a foundation for future technologies that can be used to address a myriad of developmental, neurobiological, and evolutionary questions.
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Affiliation(s)
- Tessa G Montague
- The Mortimer B. Zuckerman Mind Brain Behavior Institute, Department of Neuroscience, Columbia University, New York, New York, USA.,Howard Hughes Medical Institute, Columbia University, New York, New York, USA
| | - Isabelle J Rieth
- The Mortimer B. Zuckerman Mind Brain Behavior Institute, Department of Neuroscience, Columbia University, New York, New York, USA
| | - Richard Axel
- The Mortimer B. Zuckerman Mind Brain Behavior Institute, Department of Neuroscience, Columbia University, New York, New York, USA.,Howard Hughes Medical Institute, Columbia University, New York, New York, USA
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Tang Y, Zhang X, Ma Y, Zheng X. Descriptive study of the mitogenome of the diamondback squid (
Thysanoteuthis rhombus
Troschel, 1857) and the evolution of mitogenome arrangement in oceanic squids. J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yan Tang
- Institute of Evolution and Marine Biodiversity Ocean University of China Qingdao China
- Key Laboratory of Mariculture Ocean University of China Qingdao China
| | - Xiaoying Zhang
- Institute of Evolution and Marine Biodiversity Ocean University of China Qingdao China
- Key Laboratory of Mariculture Ocean University of China Qingdao China
| | - Yuanyuan Ma
- Institute of Evolution and Marine Biodiversity Ocean University of China Qingdao China
- Key Laboratory of Mariculture Ocean University of China Qingdao China
| | - Xiaodong Zheng
- Institute of Evolution and Marine Biodiversity Ocean University of China Qingdao China
- Key Laboratory of Mariculture Ocean University of China Qingdao China
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12
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Hirota K, Yoshida MA, Itoh T, Toyoda A, Setiamarga DHE. The full mitochondrial genome sequence of the greater argonaut Argonauta argo (Cephalopoda, Argonautoidea) and its phylogenetic position in Octopodiformes. Mitochondrial DNA B Resour 2021; 6:1451-1453. [PMID: 33997282 PMCID: PMC8081302 DOI: 10.1080/23802359.2021.1911710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/29/2021] [Indexed: 11/03/2022] Open
Abstract
The greater argonaut Argonauta argo is a species of the paper nautilus (Argonautidae), which is a family in Octopoda. In this paper, we report its full mitogenome sequence, which was obtained from a specimen collected in the Japan Seas near Oki Island, Shimane Prefecture, in Japan. The sequence was determined using the NGS Illumina HiSeq platform. With its 37 genes, the mitogenome shows a typical metazoan and Octopoda genomic structure, and similar to the mitogenome of the previously reported congener, A. hians. To confirm A. argo phylogenetic position in Octopoda, we conducted maximum likelihood phylogenetic analysis, using a data set including publicly available 17 Octopodiformes, five Decapodiformes, three Nautiloids and two outgroup Conchiferans. The result confirmed the affinity of Argonautidae to Tremoctopus, and the sister group position of this clade against the rest of incirrate Octopods. The mitogenome and phylogeny of A. argo reported here will be useful for future studies involving this enigmatic species, including on the reacquisition of external calcified shell structures in mollusks.
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Affiliation(s)
- Kazuki Hirota
- Department of Applied Chemistry and Biochemistry, National Institute of Technology (KOSEN), Wakayama College, Wakayama, Japan
- The University Museum, The University of Tokyo, Tokyo, Japan
| | - Masa-aki Yoshida
- Oki Marine Biological Station, Shimane University, Oki Island, Japan
| | - Takehiko Itoh
- School of Life Science and Technology, Tokyo Institute of Technology, Tokyo, Japan
| | - Atsushi Toyoda
- Comparative Genomics Laboratory, National Institute of Genetics, Mishima, Japan
- Advanced Genomics Center, National Institute of Genetics, Mishima, Japan
| | - Davin H. E. Setiamarga
- Department of Applied Chemistry and Biochemistry, National Institute of Technology (KOSEN), Wakayama College, Wakayama, Japan
- The University Museum, The University of Tokyo, Tokyo, Japan
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13
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Klug C, Schweigert G, Fuchs D, De Baets K. Distraction sinking and fossilized coleoid predatory behaviour from the German Early Jurassic. SWISS JOURNAL OF PALAEONTOLOGY 2021; 140:7. [PMID: 33815267 PMCID: PMC7965854 DOI: 10.1186/s13358-021-00218-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
Exceptional fossil preservation is required to conserve soft-bodied fossils and even more so to conserve their behaviour. Here, we describe a fossil of a co-occurrence of representatives of two different octobrachian coleoid species. The fossils are from the Toarcian Posidonienschiefer of Ohmden near Holzmaden, Germany. The two animals died in the act of predation, i.e. one had caught the other and had begun to nibble on it, when they possibly sank into hypoxic waters and suffocated (distraction sinking). This supports the idea that primitive vampyromorphs pursued diverse feeding strategies and were not yet adapted to being opportunistic feeders in oxygen minimum zones like their modern relative Vampyroteuthis.
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Affiliation(s)
- Christian Klug
- Paläontologisches Institut Und Museum, Universität Zürich, Karl-Schmid-Strasse 4, 8006 Zürich, Switzerland
| | - Günter Schweigert
- Staatliches Museum Für Naturkunde, Rosenstein 1, 70191 Stuttgart, Germany
| | - Dirk Fuchs
- SNSB-Bayerische Staatssammlung Für Paläontologie Und Geologie, Richard-Wagner-Straße. 10, 80333 Munich, Germany
| | - Kenneth De Baets
- GeoZentrum Nordbayern, Fachgruppe PaläoUmwelt, Friedrich-Alexander-University Erlangen-Nürnberg, Loewenichstr. 28, 91054 Erlangen, Germany
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Pardo-Gandarillas MC, Díaz-Santana-Iturrios M, Fenwick M, Villanueva R, Ibáñez CM. Redescription of the Flapjack Octopod, Opisthoteuthis bruuni (Cephalopoda: Opisthoteuthidae), from the Southeastern Pacific Ocean and Evolutionary Relationships of Cirrate Octopods. MALACOLOGIA 2021. [DOI: 10.4002/040.063.0201] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- M. Cecilia Pardo-Gandarillas
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago, Chile
| | - Mariana Díaz-Santana-Iturrios
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, Avenida República 440, Santiago, Chile
| | - Mark Fenwick
- National Institute of Water and Atmospheric Research, Ltd., Wellington, New Zealand
| | - Roger Villanueva
- Institut de Ciències del Mar (CSIC), Passeig Maritim de la Barceloneta 37–49, 08003 Barcelona, Spain
| | - Christian M. Ibáñez
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, Avenida República 440, Santiago, Chile
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de Jonge DSW, Merten V, Bayer T, Puebla O, Reusch TBH, Hoving HJT. A novel metabarcoding primer pair for environmental DNA analysis of Cephalopoda (Mollusca) targeting the nuclear 18S rRNA region. ROYAL SOCIETY OPEN SCIENCE 2021; 8:201388. [PMID: 33972853 PMCID: PMC8074623 DOI: 10.1098/rsos.201388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 01/04/2021] [Indexed: 05/19/2023]
Abstract
Cephalopods are pivotal components of marine food webs, but biodiversity studies are hampered by challenges to sample these agile marine molluscs. Metabarcoding of environmental DNA (eDNA) is a potentially powerful technique to study oceanic cephalopod biodiversity and distribution but has not been applied thus far. We present a novel universal primer pair for metabarcoding cephalopods from eDNA, Ceph18S (Forward: 5'-CGC GGC GCT ACA TAT TAG AC-3', Reverse: 5'-GCA CTT AAC CGA CCG TCG AC-3'). The primer pair targets the hypervariable region V2 of the nuclear 18S rRNA gene and amplifies a relatively short target sequence of approximately 200 bp in order to allow the amplification of degraded DNA. In silico tests on a reference database and empirical tests on DNA extracts from cephalopod tissue estimate that 44-66% of cephalopod species, corresponding to about 310-460 species, can be amplified and identified with this primer pair. A multi-marker approach with the novel Ceph18S and two previously published cephalopod mitochondrial 16S rRNA primer sets targeting the same region (Jarman et al. 2006 Mol. Ecol. Notes. 6, 268-271; Peters et al. 2015 Mar. Ecol. 36, 1428-1439) is estimated to amplify and identify 89% of all cephalopod species, of which an estimated 19% can only be identified by Ceph18S. All sequences obtained with Ceph18S were submitted to GenBank, resulting in new 18S rRNA sequences for 13 cephalopod taxa.
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Affiliation(s)
- Daniëlle S. W. de Jonge
- Faculty of Mathematics and Natural Sciences, University of Groningen, Groningen, The Netherlands
| | - Véronique Merten
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Till Bayer
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Oscar Puebla
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
- Ecology Department, Leibniz Centre for Tropical Marine Research (ZMT), Bremen, Germany
| | - Thorsten B. H. Reusch
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Henk-Jan T. Hoving
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
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16
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The First In Situ Observation of the Ram’s Horn Squid Spirula spirula Turns “Common Knowledge” Upside Down. DIVERSITY 2020. [DOI: 10.3390/d12120449] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The ram’s horn squid Spirula spirula (Linnaeus, 1758) is the only extant cephalopod with an internal calcareous, chambered shell that is coiled, making it the sole living representative of the once speciose order Spirulida [...]
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17
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Golikov AV, Ceia FR, Sabirov RM, Ablett JD, Gleadall IG, Gudmundsson G, Hoving HJ, Judkins H, Pálsson J, Reid AL, Rosas-Luis R, Shea EK, Schwarz R, Xavier JC. The first global deep-sea stable isotope assessment reveals the unique trophic ecology of Vampire Squid Vampyroteuthis infernalis (Cephalopoda). Sci Rep 2019; 9:19099. [PMID: 31836823 PMCID: PMC6910912 DOI: 10.1038/s41598-019-55719-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 12/02/2019] [Indexed: 11/21/2022] Open
Abstract
Vampyroteuthis infernalis Chun, 1903, is a widely distributed deepwater cephalopod with unique morphology and phylogenetic position. We assessed its habitat and trophic ecology on a global scale via stable isotope analyses of a unique collection of beaks from 104 specimens from the Atlantic, Pacific and Indian Oceans. Cephalopods typically are active predators occupying a high trophic level (TL) and exhibit an ontogenetic increase in δ15N and TL. Our results, presenting the first global comparison for a deep-sea invertebrate, demonstrate that V. infernalis has an ontogenetic decrease in δ15N and TL, coupled with niche broadening. Juveniles are mobile zooplanktivores, while larger Vampyroteuthis are slow-swimming opportunistic consumers and ingest particulate organic matter. Vampyroteuthis infernalis occupies the same TL (3.0–4.3) over its global range and has a unique niche in deep-sea ecosystems. These traits have enabled the success and abundance of this relict species inhabiting the largest ecological realm on the planet.
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Affiliation(s)
- Alexey V Golikov
- Department of Zoology, Kazan Federal University, 420008, Kazan, Russia.
| | - Filipe R Ceia
- Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3000-456, Coimbra, Portugal
| | - Rushan M Sabirov
- Department of Zoology, Kazan Federal University, 420008, Kazan, Russia
| | - Jonathan D Ablett
- Department of Life Sciences, Natural History Museum, SW7 5BD, London, UK
| | - Ian G Gleadall
- Graduate School of Agricultural Science, Tohoku University, 980-0845, Sendai, Japan
| | - Gudmundur Gudmundsson
- Collections and Systematics Department, Icelandic Institute of Natural History, 210, Gardabaer, Iceland
| | - Hendrik J Hoving
- GEOMAR, Helmholtz Centre for Ocean Research Kiel, 24105, Kiel, Germany
| | - Heather Judkins
- Department of Biological Sciences, University of South Florida St. Petersburg, 33701, St. Petersburg, FL, USA
| | - Jónbjörn Pálsson
- Marine and Freshwater Research Institute, 101, Reykjavik, Iceland
| | - Amanda L Reid
- Australian Museum Research Institute, 2010, Sydney, NSW, Australia
| | - Rigoberto Rosas-Luis
- CONACyT-Tecnológico Nacional de México/I.T.Chetumal, 77013, Chetumal, Quintana Roo, México.,Tecnologico Nacional de Mexico/I. T. Chetumal, 77013, Chetumal, México
| | | | - Richard Schwarz
- Escola do Mar, Ciência e Tecnologia, Universidade do Vale do Itajaí, 88302901, Itajaí, Brazil
| | - José C Xavier
- Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3000-456, Coimbra, Portugal.,British Antarctic Survey, Natural Environment Research Council, CB3 0ET, Cambridge, UK
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18
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Morse P, Huffard CL. Tactical Tentacles: New Insights on the Processes of Sexual Selection Among the Cephalopoda. Front Physiol 2019; 10:1035. [PMID: 31496951 PMCID: PMC6712556 DOI: 10.3389/fphys.2019.01035] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/29/2019] [Indexed: 01/31/2023] Open
Abstract
The cephalopods (Mollusca: Cephalopoda) are an exceptional class among the invertebrates, characterised by the advanced development of their conditional learning abilities, long-term memories, capacity for rapid colour change and extremely adaptable hydrostatic skeletons. These traits enable cephalopods to occupy diverse marine ecological niches, become successful predators, employ sophisticated predator avoidance behaviours and have complex intraspecific interactions. Where studied, observations of cephalopod mating systems have revealed detailed insights to the life histories and behavioural ecologies of these animals. The reproductive biology of cephalopods is typified by high levels of both male and female promiscuity, alternative mating tactics, long-term sperm storage prior to spawning, and the capacity for intricate visual displays and/or use of a distinct sensory ecology. This review summarises the current understanding of cephalopod reproductive biology, and where investigated, how both pre-copulatory behaviours and post-copulatory fertilisation patterns can influence the processes of sexual selection. Overall, it is concluded that sperm competition and possibly cryptic female choice are likely to be critical determinants of which individuals' alleles get transferred to subsequent generations in cephalopod mating systems. Additionally, it is emphasised that the optimisation of offspring quality and/or fertilisation bias to genetically compatible males are necessary drivers for the proliferation of polyandry observed among cephalopods, and potential methods for testing these hypotheses are proposed within the conclusion of this review. Further gaps within the current knowledge of how sexual selection operates in this group are also highlighted, in the hopes of prompting new directions for research of the distinctive mating systems in this unique lineage.
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Affiliation(s)
- Peter Morse
- Australian Institute of Marine Science, Crawley, WA, Australia.,College of Science and Engineering, James Cook University, Townsville, QLD, Australia
| | - Christine L Huffard
- Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States.,California Academy of Sciences, San Francisco, CA, United States
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Messerli MA, Raihan MJ, Kobylkevich BM, Benson AC, Bruening KS, Shribak M, Rosenthal JJ, Sohn JJ. Construction and Composition of the Squid Pen from Doryteuthis pealeii. THE BIOLOGICAL BULLETIN 2019; 237:1-15. [PMID: 31441702 PMCID: PMC7340512 DOI: 10.1086/704209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The pen, or gladius, of the squid is an internalized shell. It serves as a site of attachment for important muscle groups and as a protective barrier for the visceral organs. The pen's durability and flexibility are derived from its unique composition of chitin and protein. We report the characterization of the structure, development, and composition of pens from Doryteuthis pealeii. The nanofibrils of the polysaccharide β-chitin are arranged in an aligned configuration in only specific regions of the pen. Chitin is secreted early in development, enabling us to characterize the changes in pen morphology prior to hatching. The chitin and proteins are assembled in the shell sac surrounded by fluid that has a significantly different ionic composition from squid plasma. Two groups of proteins are associated with the pen: those on its surface and those embedded within the pen. Only 20 proteins are identified as embedded within the pen. Embedded proteins are classified into six groups, including chitin associated, protease, protease inhibitors, intracellular, extracellular matrix, and those that are unknown. The pen proteins share many conserved domains with proteins from other chitinous structures. We conclude that the pen is one of the least complex, load-bearing, chitin-rich structures currently known and is amenable to further studies to elucidate natural construction mechanisms using chitin and protein.
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Affiliation(s)
- Mark A. Messerli
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007
| | - M. Jahir Raihan
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007
| | - Brian M. Kobylkevich
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007
| | - Austin C. Benson
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007
| | - Kristi S. Bruening
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007
| | - Michael Shribak
- Eugene Bell Center for Regenerative Biology and Tissue Engineering, The Marine Biological Laboratory, Woods Hole, MA 02543
| | - Joshua J.C. Rosenthal
- Eugene Bell Center for Regenerative Biology and Tissue Engineering, The Marine Biological Laboratory, Woods Hole, MA 02543
| | - Joel J. Sohn
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138
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20
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Tang Y, Zheng X, Zhong H, Li Q. Phylogenetics and comparative analysis of the mitochondrial genomes of three violet‐ringed octopuses. ZOOL SCR 2019. [DOI: 10.1111/zsc.12359] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yan Tang
- Key Laboratory of Mariculture Ocean University of China Qingdao China
- Institute of Evolution and Marine Biodiversity Ocean University of China Qingdao China
| | - Xiaodong Zheng
- Key Laboratory of Mariculture Ocean University of China Qingdao China
- Institute of Evolution and Marine Biodiversity Ocean University of China Qingdao China
| | - Hong Zhong
- Shenzhen BGTX Foods Co., Ltd. Shenzhen China
| | - Qi Li
- Key Laboratory of Mariculture Ocean University of China Qingdao China
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21
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22
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Ibáñez CM, Rezende EL, Sepúlveda RD, Avaria‐Llautureo J, Hernández CE, Sellanes J, Poulin E, Pardo‐Gandarillas MC. Thorson's rule, life‐history evolution, and diversification of benthic octopuses (Cephalopoda: Octopodoidea). Evolution 2018; 72:1829-1839. [DOI: 10.1111/evo.13559] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/26/2018] [Accepted: 07/10/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Christian M. Ibáñez
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida Universidad Andres Bello República 440 Santiago Chile
| | - Enrico L. Rezende
- Departamento de Ecología, Center of Applied Ecology and Sustainability, Facultad de Ciencias Biológicas Pontificia Universidad Católica de Chile Santiago Chile
| | - Roger D. Sepúlveda
- Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias Universidad de Austral de Chile Casilla 567 Valdivia Chile
| | - Jorge Avaria‐Llautureo
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción Barrio Universitario S/N Concepción Chile
- Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS) Facultad de Ciencias, Universidad Católica de la Santísima Concepción Concepción Chile
| | - Cristián E. Hernández
- Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas Universidad de Concepción Barrio Universitario S/N Concepción Chile
| | - Javier Sellanes
- Departamento de Biología Marina y Núcleo Milenio ‘Ecología y Manejo Sustentable de Islas Oceánicas’, Facultad de Ciencias del Mar Universidad Católica del Norte Larrondo 1281 Coquimbo Chile
| | - Elie Poulin
- Instituto de Ecología y Biodiversidad, Facultad de Ciencias Universidad de Chile Las Palmeras 3425, Ñuñoa Santiago Chile
| | - M. Cecilia Pardo‐Gandarillas
- Departamento de Ciencias Ecológicas, Facultad de Ciencias Universidad de Chile Las Palmeras 3425, Ñuñoa Santiago Chile
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Sanchez G, Setiamarga DH, Tuanapaya S, Tongtherm K, Winkelmann IE, Schmidbaur H, Umino T, Albertin C, Allcock L, Perales-Raya C, Gleadall I, Strugnell JM, Simakov O, Nabhitabhata J. Genus-level phylogeny of cephalopods using molecular markers: current status and problematic areas. PeerJ 2018; 6:e4331. [PMID: 29456885 PMCID: PMC5813590 DOI: 10.7717/peerj.4331] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 01/16/2018] [Indexed: 11/20/2022] Open
Abstract
Comprising more than 800 extant species, the class Cephalopoda (octopuses, squid, cuttlefish, and nautiluses) is a fascinating group of marine conchiferan mollusks. Recently, the first cephalopod genome (of Octopus bimaculoides) was published, providing a genomic framework, which will enable more detailed investigations of cephalopod characteristics, including developmental, morphological, and behavioural traits. Meanwhile, a robust phylogeny of the members of the subclass Coleoidea (octopuses, squid, cuttlefishes) is crucial for comparative and evolutionary studies aiming to investigate the group's traits and innovations, but such a phylogeny has proven very challenging to obtain. Here, we present the results of phylogenetic inference at the genus level using mitochondrial and nuclear marker sequences available from public databases. Topologies are presented which show support for (1) the monophyly of the two main superorders, Octobrachia and Decabrachia, and (2) some of the interrelationships at the family level. We have mapped morphological characters onto the tree and conducted molecular dating analyses, obtaining congruent results with previous estimates of divergence in major lineages. Our study also identifies unresolved phylogenetic relationships within the cephalopod phylogeny and insufficient taxonomic sampling among squids excluding the Loliginidae in the Decabrachia and within the Order Cirromorphida in the Octobrachia. Genomic and transcriptomic resources should enable resolution of these issues in the relatively near future. We provide our alignment as an open access resource, to allow other researchers to reconstruct phylogenetic trees upon this work in the future.
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Affiliation(s)
- Gustavo Sanchez
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
- Molecular Genetics Unit, Okinawa Institute of Science and Technology, Okinawa, Japan
| | - Davin H.E. Setiamarga
- Department of Applied Chemistry and Biochemistry, National Institute of Technology—Wakayama College, Gobo City, Wakayama, Japan
- The University Museum, The University of Tokyo, Tokyo, Japan
| | | | | | - Inger E. Winkelmann
- Section for Evolutionary Genomics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
| | - Hannah Schmidbaur
- Department of Molecular Evolution and Development, University of Vienna, Vienna, Austria
| | - Tetsuya Umino
- Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan
| | - Caroline Albertin
- Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL, United States of America
| | - Louise Allcock
- Department of Zoology, Martin Ryan Marine Science Institute, National University of Ireland, Galway, Ireland
| | - Catalina Perales-Raya
- Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Santa Cruz de Tenerife, Spain
| | - Ian Gleadall
- Graduate School of Agricultural Science, Tohoku University, Sendai, Tohoku, Japan
| | - Jan M. Strugnell
- Marine Biology & Aquaculture, James Cook University, Townsville, Queensland, Australia
| | - Oleg Simakov
- Molecular Genetics Unit, Okinawa Institute of Science and Technology, Okinawa, Japan
- Department of Molecular Evolution and Development, University of Vienna, Vienna, Austria
| | - Jaruwat Nabhitabhata
- Excellence Centre for Biodiversity of Peninsular Thailand, Prince of Songkla University, Songkhla, Thailand
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Villanueva R, Perricone V, Fiorito G. Cephalopods as Predators: A Short Journey among Behavioral Flexibilities, Adaptions, and Feeding Habits. Front Physiol 2017; 8:598. [PMID: 28861006 PMCID: PMC5563153 DOI: 10.3389/fphys.2017.00598] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/03/2017] [Indexed: 12/22/2022] Open
Abstract
The diversity of cephalopod species and the differences in morphology and the habitats in which they live, illustrates the ability of this class of molluscs to adapt to all marine environments, demonstrating a wide spectrum of patterns to search, detect, select, capture, handle, and kill prey. Photo-, mechano-, and chemoreceptors provide tools for the acquisition of information about their potential preys. The use of vision to detect prey and high attack speed seem to be a predominant pattern in cephalopod species distributed in the photic zone, whereas in the deep-sea, the development of mechanoreceptor structures and the presence of long and filamentous arms are more abundant. Ambushing, luring, stalking and pursuit, speculative hunting and hunting in disguise, among others are known modes of hunting in cephalopods. Cannibalism and scavenger behavior is also known for some species and the development of current culture techniques offer evidence of their ability to feed on inert and artificial foods. Feeding requirements and prey choice change throughout development and in some species, strong ontogenetic changes in body form seem associated with changes in their diet and feeding strategies, although this is poorly understood in planktonic and larval stages. Feeding behavior is altered during senescence and particularly in brooding octopus females. Cephalopods are able to feed from a variety of food sources, from detritus to birds. Their particular requirements of lipids and copper may help to explain why marine crustaceans, rich in these components, are common prey in all cephalopod diets. The expected variation in climate change and ocean acidification and their effects on chemoreception and prey detection capacities in cephalopods are unknown and needs future research.
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Affiliation(s)
- Roger Villanueva
- Institut de Ciències del Mar, Consejo Superior de Investigaciones Científicas (CSIC)Barcelona, Spain
| | | | - Graziano Fiorito
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton DohrnNapoli, Italy
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25
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Whole mitochondrial genome of the Ram’s Horn Squid shines light on the phylogenetic position of the monotypic order Spirulida (Haeckel, 1896). Mol Phylogenet Evol 2017; 109:296-301. [DOI: 10.1016/j.ympev.2017.01.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 01/14/2017] [Accepted: 01/19/2017] [Indexed: 11/21/2022]
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26
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Byern JV, Kerbl A, Nödl MT, Bello G, Staedler Y, Schönenberger J, Cyran N. Spine Formation as a Hatching Tool inEuprymna scolopes(Mollusca, Cephalopoda, Sepiolidae). MALACOLOGIA 2016. [DOI: 10.4002/040.059.0204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Mating tactics in the sub-Antarctic deep-sea squid Onykia ingens (Cephalopoda: Onychoteuthidae). Polar Biol 2015. [DOI: 10.1007/s00300-015-1856-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Braid HE, Bolstad KSR. Systematics of the Mastigoteuthidae Verrill, 1881 (Cephalopoda: Oegopsida) from New Zealand waters. NEW ZEALAND JOURNAL OF ZOOLOGY 2015. [DOI: 10.1080/03014223.2015.1063516] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Checa AG, Cartwright JHE, Sánchez-Almazo I, Andrade JP, Ruiz-Raya F. The cuttlefish Sepia officinalis (Sepiidae, Cephalopoda) constructs cuttlebone from a liquid-crystal precursor. Sci Rep 2015; 5:11513. [PMID: 26086668 PMCID: PMC4471886 DOI: 10.1038/srep11513] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 05/28/2015] [Indexed: 12/03/2022] Open
Abstract
Cuttlebone, the sophisticated buoyancy device of cuttlefish, is made of extensive superposed chambers that have a complex internal arrangement of calcified pillars and organic membranes. It has not been clear how this structure is assembled. We find that the membranes result from a myriad of minor membranes initially filling the whole chamber, made of nanofibres evenly oriented within each membrane and slightly rotated with respect to those of adjacent membranes, producing a helical arrangement. We propose that the organism secretes a chitin–protein complex, which self-organizes layer-by-layer as a cholesteric liquid crystal, whereas the pillars are made by viscous fingering. The liquid crystallization mechanism permits us to homologize the elements of the cuttlebone with those of other coleoids and with the nacreous septa and the shells of nautiloids. These results challenge our view of this ultra-light natural material possessing desirable mechanical, structural and biological properties, suggesting that two self-organizing physical principles suffice to understand its formation.
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Affiliation(s)
- Antonio G Checa
- 1] Departamento de Estratigrafía y Paleontología, Universidad de Granada, 18071 Granada, Spain [2] Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada, 18071 Granada, Spain
| | - Julyan H E Cartwright
- Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada, 18071 Granada, Spain
| | | | - José P Andrade
- Centro de Ciências do Mar do Algarve, Universidade do Algarve, Faro, Portugal
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31
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Klug C, Kröger B, Vinther J, Fuchs D, De Baets K. Ancestry, Origin and Early Evolution of Ammonoids. TOPICS IN GEOBIOLOGY 2015. [DOI: 10.1007/978-94-017-9633-0_1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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32
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Hoving HJT, Perez JAA, Bolstad KSR, Braid HE, Evans AB, Fuchs D, Judkins H, Kelly JT, Marian JEAR, Nakajima R, Piatkowski U, Reid A, Vecchione M, Xavier JCC. The study of deep-sea cephalopods. ADVANCES IN MARINE BIOLOGY 2014; 67:235-359. [PMID: 24880796 DOI: 10.1016/b978-0-12-800287-2.00003-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
"Deep-sea" cephalopods are here defined as cephalopods that spend a significant part of their life cycles outside the euphotic zone. In this chapter, the state of knowledge in several aspects of deep-sea cephalopod research are summarized, including information sources for these animals, diversity and general biogeography and life cycles, including reproduction. Recommendations are made for addressing some of the remaining knowledge deficiencies using a variety of traditional and more recently developed methods. The types of oceanic gear that are suitable for collecting cephalopod specimens and images are reviewed. Many groups of deep-sea cephalopods require taxonomic reviews, ideally based on both morphological and molecular characters. Museum collections play a vital role in these revisions, and novel (molecular) techniques may facilitate new use of old museum specimens. Fundamental life-cycle parameters remain unknown for many species; techniques developed for neritic species that could potentially be applied to deep-sea cephalopods are discussed. Reproductive tactics and strategies in deep-sea cephalopods are very diverse and call for comparative evolutionary and experimental studies, but even in the twenty-first century, mature individuals are still unknown for many species. New insights into diet and trophic position have begun to reveal a more diverse range of feeding strategies than the typically voracious predatory lifestyle known for many cephalopods. Regular standardized deep-sea cephalopod surveys are necessary to provide insight into temporal changes in oceanic cephalopod populations and to forecast, verify and monitor the impacts of global marine changes and human impacts on these populations.
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Affiliation(s)
| | - Jose Angel A Perez
- Centro de Ciências Tecnológicas da Terra e do Mar Universidade do Vale do Itajaí, Itajaí, Santa Catarina, Brazil
| | - Kathrin S R Bolstad
- Institute for Applied Ecology New Zealand, Auckland University of Technology, Auckland, New Zealand
| | - Heather E Braid
- Institute for Applied Ecology New Zealand, Auckland University of Technology, Auckland, New Zealand
| | - Aaron B Evans
- Institute for Applied Ecology New Zealand, Auckland University of Technology, Auckland, New Zealand
| | - Dirk Fuchs
- Freie Universität Berlin, Institute of Geological Sciences, Branch Paleontology, Berlin, Germany
| | - Heather Judkins
- Department of Biological Sciences, University of South Florida St. Petersburg, St. Petersburg, Florida, USA
| | - Jesse T Kelly
- Institute for Applied Ecology New Zealand, Auckland University of Technology, Auckland, New Zealand
| | - José E A R Marian
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Sao Paulo, Brazil
| | - Ryuta Nakajima
- Department of Art and Design, University of Minnesota Duluth, Duluth, Minnesota, USA
| | - Uwe Piatkowski
- GEOMAR, Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Amanda Reid
- Australian Museum Research Institute, Sydney, New South Wales, Australia
| | - Michael Vecchione
- NMFS National Systematics Laboratory, National Museum of Natural History, Washington, DC, USA
| | - José C C Xavier
- Institute of Marine Research, Department of Life Sciences, University of Coimbra, Coimbra, Portugal; British Antarctic Survey, NERC, Cambridge, United Kingdom
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Hoving HJT, Zeidberg LD, Benfield MC, Bush SL, Robison BH, Vecchione M. First in situ observations of the deep-sea squid Grimalditeuthis bonplandi reveal unique use of tentacles. Proc Biol Sci 2013; 280:20131463. [PMID: 23986106 DOI: 10.1098/rspb.2013.1463] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The deep-sea squid Grimalditeuthis bonplandi has tentacles unique among known squids. The elastic stalk is extremely thin and fragile, whereas the clubs bear no suckers, hooks or photophores. It is unknown whether and how these tentacles are used in prey capture and handling. We present, to our knowledge, the first in situ observations of this species obtained by remotely operated vehicles (ROVs) in the Atlantic and North Pacific. Unexpectedly, G. bonplandi is unable to rapidly extend and retract the tentacle stalk as do other squids, but instead manoeuvres the tentacles by undulation and flapping of the clubs' trabecular protective membranes. These tentacle club movements superficially resemble the movements of small marine organisms and suggest the possibility that G. bonplandi uses aggressive mimicry by the tentacle clubs to lure prey, which we find to consist of crustaceans and cephalopods. In the darkness of the meso- and bathypelagic zones the flapping and undulatory movements of the tentacle may: (i) stimulate bioluminescence in the surrounding water, (ii) create low-frequency vibrations and/or (iii) produce a hydrodynamic wake. Potential prey of G. bonplandi may be attracted to one or more of these as signals. This singular use of the tentacle adds to the diverse foraging and feeding strategies known in deep-sea cephalopods.
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Buresi A, Canali E, Bonnaud L, Baratte S. Delayed and asynchronous ganglionic maturation during cephalopod neurogenesis as evidenced by Sof-elav1 expression in embryos of Sepia officinalis (Mollusca, Cephalopoda). J Comp Neurol 2013; 521:1482-96. [PMID: 23047428 DOI: 10.1002/cne.23231] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 08/27/2012] [Accepted: 10/02/2012] [Indexed: 01/05/2023]
Abstract
Among the Lophotrochozoa, centralization of the nervous system reaches an exceptional level of complexity in cephalopods, where the typical molluscan ganglia become highly developed and fuse into hierarchized lobes. It is known that ganglionic primordia initially emerge early and simultaneously during cephalopod embryogenesis but no data exist on the process of neuron differentiation in this group. We searched for members of the elav/hu family in the cuttlefish Sepia officinalis, since they are one of the first genetic markers of postmitotic neural cells. Two paralogs were identified and the expression of the most neural-specific gene, Sof-elav1, was characterized during embryogenesis. Sof-elav1 is expressed in all ganglia at one time of development, which provides the first genetic map of neurogenesis in a cephalopod. Our results unexpectedly revealed that Sof-elav1 expression is not similar and not coordinated in all the prospective ganglia. Both palliovisceral ganglia show extensive Sof-elav1 expression soon after emergence, showing that most of their cells differentiate into neurons at an early stage. On the contrary, other ganglia, and especially both cerebral ganglia that contribute to the main parts of the brain learning centers, show a late extensive Sof-elav1 expression. These delayed expressions in ganglia suggest that most ganglionic cells retain their proliferative capacities and postpone differentiation. In other molluscs, where a larval nervous system predates the development of the definitive adult nervous system, cerebral ganglia are among the first to mature. Thus, such a difference may constitute a cue in understanding the peculiar brain evolution in cephalopods.
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Affiliation(s)
- Auxane Buresi
- Muséum National d'Histoire Naturelle (MNHN), DMPA, UMR Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), MNHN CNRS 7208, IRD 207, UPMC, 75005 Paris, France.
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Finn JK. Taxonomy and biology of the argonauts (Cephalopoda: Argonautidae) with particular reference to Australian material. MOLLUSCAN RESEARCH 2013. [DOI: 10.1080/13235818.2013.824854] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kawashima Y, Nishihara H, Akasaki T, Nikaido M, Tsuchiya K, Segawa S, Okada N. The complete mitochondrial genomes of deep-sea squid (Bathyteuthis abyssicola), bob-tail squid (Semirossia patagonica) and four giant cuttlefish (Sepia apama, S. latimanus, S. lycidas and S. pharaonis), and their application to the phylogenetic analysis of Decapodiformes. Mol Phylogenet Evol 2013; 69:980-93. [PMID: 23811434 DOI: 10.1016/j.ympev.2013.06.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 06/01/2013] [Accepted: 06/13/2013] [Indexed: 11/18/2022]
Abstract
We determined the complete mitochondrial (mt) genomes of the deep-sea squid (Bathyteuthis abyssicola; supperfamily Bathyteuthoidea), the bob-tail squid (Semirossia patagonica; order Sepiolida) and four giant cuttlefish (Sepia apama, S. latimanus, S. lycidas and S. pharaonis; order Sepiida). The unique structures of the mt genomes of Bathyteuthis and Semirossia provide new information about the evolution of decapodiform mt genomes. We show that the mt genome of B. abyssicola, like those of other oegopsids studied so far, has two long duplicated regions that include seven genes (COX1-3, ATP6 and ATP8, tRNA(Asn), and either ND2 or ND3) and that one of the duplicated COX3 genes has lost its function. The mt genome of S. patagonica is unlike any other decapodiforms and, like Nautilus, its ATP6 and ATP8 genes are not adjacent to each other. The four giant cuttlefish have identical mt gene order to other cuttlefish determined to date. Molecular phylogenetic analyses using maximum likelihood and Bayesian methods suggest that traditional order Sepioidea (Sepiolida+Sepiida) is paraphyletic and Sepia (cuttlefish) has the sister-relationship with all other decapodiforms. Taking both the phylogenetic analyses and the mt gene order analyses into account, it is likely that the octopus-type mt genome is an ancestral state and that it had maintained from at least the Cephalopoda ancestor to the common ancestor of Oegopsida, Myopsida and Sepiolida.
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Affiliation(s)
- Yuumi Kawashima
- Central Customs Laboratory, 6-3-5, Kashiwanoha, Kashiwa-shi, Chiba 277-0082, Japan
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Hoving HJT, Robison BH. Vampire squid: detritivores in the oxygen minimum zone. Proc Biol Sci 2012; 279:4559-67. [PMID: 23015627 DOI: 10.1098/rspb.2012.1357] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Vampire squid (Vampyroteuthis infernalis) are considered phylogenetic relics with cephalopod features of both octopods and squids. They lack feeding tentacles, but in addition to their eight arms, they have two retractile filaments, the exact functions of which have puzzled scientists for years. We present the results of investigations on the feeding ecology and behaviour of Vampyroteuthis, which include extensive in situ, deep-sea video recordings from MBARI's remotely operated vehicles (ROVs), laboratory feeding experiments, diet studies and morphological examinations of the retractile filaments, the arm suckers and cirri. Vampire squid were found to feed on detrital matter of various sizes, from small particles to larger marine aggregates. Ingested items included the remains of gelatinous zooplankton, discarded larvacean houses, crustacean remains, diatoms and faecal pellets. Both ROV observations and laboratory experiments led to the conclusion that vampire squid use their retractile filaments for the capture of food, supporting the hypothesis that the filaments are homologous to cephalopod arms. Vampyroteuthis' feeding behaviour is unlike any other cephalopod, and reveals a unique adaptation that allows these animals to spend most of their life at depths where oxygen concentrations are very low, but where predators are few and typical cephalopod food is scarce.
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Lindgren AR, Pankey MS, Hochberg FG, Oakley TH. A multi-gene phylogeny of Cephalopoda supports convergent morphological evolution in association with multiple habitat shifts in the marine environment. BMC Evol Biol 2012; 12:129. [PMID: 22839506 PMCID: PMC3733422 DOI: 10.1186/1471-2148-12-129] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Accepted: 07/05/2012] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND The marine environment is comprised of numerous divergent organisms living under similar selective pressures, often resulting in the evolution of convergent structures such as the fusiform body shape of pelagic squids, fishes, and some marine mammals. However, little is known about the frequency of, and circumstances leading to, convergent evolution in the open ocean. Here, we present a comparative study of the molluscan class Cephalopoda, a marine group known to occupy habitats from the intertidal to the deep sea. Several lineages bear features that may coincide with a benthic or pelagic existence, making this a valuable group for testing hypotheses of correlated evolution. To test for convergence and correlation, we generate the most taxonomically comprehensive multi-gene phylogeny of cephalopods to date. We then create a character matrix of habitat type and morphological characters, which we use to infer ancestral character states and test for correlation between habitat and morphology. RESULTS Our study utilizes a taxonomically well-sampled phylogeny to show convergent evolution in all six morphological characters we analyzed. Three of these characters also correlate with habitat. The presence of an autogenic photophore (those relying upon autonomous enzymatic light reactions) is correlated with a pelagic habitat, while the cornea and accessory nidamental gland correlate with a benthic lifestyle. Here, we present the first statistical tests for correlation between convergent traits and habitat in cephalopods to better understand the evolutionary history of characters that are adaptive in benthic or pelagic environments, respectively. DISCUSSION Our study supports the hypothesis that habitat has influenced convergent evolution in the marine environment: benthic organisms tend to exhibit similar characteristics that confer protection from invasion by other benthic taxa, while pelagic organisms possess features that facilitate crypsis and communication in an environment lacking physical refuges. Features that have originated multiple times in distantly related lineages are likely adaptive for the organisms inhabiting a particular environment: studying the frequency and evolutionary history of such convergent characters can increase understanding of the underlying forces driving ecological and evolutionary transitions in the marine environment.
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Affiliation(s)
- Annie R Lindgren
- Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA
- Present Address: Department of Biology, Portland State University, PO Box 751, Portland, OR 97207, USA
| | - Molly S Pankey
- Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA
| | - Frederick G Hochberg
- Department of Invertebrate Zoology, Santa Barbara Museum of Natural History, 2559 Puesta del Sol Rd, Santa Barbara, CA, 93105, USA
| | - Todd H Oakley
- Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA
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Kröger B, Vinther J, Fuchs D. Cephalopod origin and evolution: A congruent picture emerging from fossils, development and molecules: Extant cephalopods are younger than previously realised and were under major selection to become agile, shell-less predators. Bioessays 2011; 33:602-13. [PMID: 21681989 DOI: 10.1002/bies.201100001] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Cephalopods are extraordinary molluscs equipped with vertebrate-like intelligence and a unique buoyancy system for locomotion. A growing body of evidence from the fossil record, embryology and Bayesian molecular divergence estimations provides a comprehensive picture of their origins and evolution. Cephalopods evolved during the Cambrian (∼530 Ma) from a monoplacophoran-like mollusc in which the conical, external shell was modified into a chambered buoyancy apparatus. During the mid-Palaeozoic (∼416 Ma) cephalopods diverged into nautiloids and the presently dominant coleoids. Coleoids (i.e. squids, cuttlefish and octopods) internalised their shells and, in the late Palaeozoic (∼276 Ma), diverged into Vampyropoda and the Decabrachia. This shell internalisation appears to be a unique evolutionary event. In contrast, the loss of a mineralised shell has occurred several times in distinct coleoid lineages. The general tendency of shell reduction reflects a trend towards active modes of life and much more complex behaviour.
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ALLCOCK ALOUISE, COOKE IRAR, STRUGNELL JANM. What can the mitochondrial genome reveal about higher-level phylogeny of the molluscan class Cephalopoda? Zool J Linn Soc 2011. [DOI: 10.1111/j.1096-3642.2010.00656.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Finn JK, Norman MD. The argonaut shell: gas-mediated buoyancy control in a pelagic octopus. Proc Biol Sci 2010; 277:2967-71. [PMID: 20484241 DOI: 10.1098/rspb.2010.0155] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Argonauts (Cephalopoda: Argonautidae) are a group of rarely encountered open-ocean pelagic octopuses with benthic ancestry. Female argonauts inhabit a brittle 'paper nautilus' shell, the role of which has puzzled naturalists for millennia. The primary role attributed to the shell has been as a receptacle for egg deposition and brooding. Our observations of wild argonauts have revealed that the thin calcareous shell also functions as a hydrostatic structure, employed by the female argonaut to precisely control buoyancy at varying depths. Female argonauts use the shell to 'gulp' a measured volume of air at the sea surface, seal off the captured gas using flanged arms and forcefully dive to a depth where the compressed gas buoyancy counteracts body weight. This process allows the female argonaut to attain neutral buoyancy at depth and potentially adjust buoyancy to counter the increased (and significant) weight of eggs during reproductive periods. Evolution of this air-capture strategy enables this negatively buoyant octopus to survive free of the sea floor. This major shift in life mode from benthic to pelagic shows strong evolutionary parallels with the origins of all cephalopods, which attained gas-mediated buoyancy via the closed-chambered shells of the true nautiluses and their relatives.
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Affiliation(s)
- Julian K Finn
- Sciences, Museum Victoria, Melbourne, Victoria 3001, Australia.
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Strugnell J, Allcock AL. Co-estimation of phylogeny and divergence times of Argonautoidea using relaxed phylogenetics. Mol Phylogenet Evol 2009; 54:701-8. [PMID: 19941965 DOI: 10.1016/j.ympev.2009.11.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2009] [Revised: 10/08/2009] [Accepted: 11/18/2009] [Indexed: 11/24/2022]
Abstract
This is the first study to investigate molecular phylogenetic relationships among all four genera of the superfamily Argonautoidea, a clade of diverse pelagic cephalopods with extraordinary characters such as ovoviviparity, dwarf males and secondary "shell" development. Phylogenetic relationships and divergence times within the superfamily were co-estimated using relaxed phylogenetic techniques. A sister-taxon relationship was recovered between Argonauta and Ocythoe and between Tremoctopus and Haliphron. The most recent common ancestor of Argonautoidea was estimated to date from the early Tertiary under the scenario that a lack of a "shell" in the ocythoid lineage is a primary characteristic. In contrast, a later Tertiary most recent common ancestor was estimated under the scenario that a "shell" was present in the early ocythoid lineage and was subsequently lost.
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Affiliation(s)
- Jan Strugnell
- Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK.
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Akasaki T, Nikaido M, Nishihara H, Tsuchiya K, Segawa S, Okada N. Characterization of a novel SINE superfamily from invertebrates: "Ceph-SINEs" from the genomes of squids and cuttlefish. Gene 2009; 454:8-19. [PMID: 19914361 DOI: 10.1016/j.gene.2009.11.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2009] [Revised: 10/30/2009] [Accepted: 11/06/2009] [Indexed: 11/27/2022]
Abstract
Five tRNA-derived short interspersed repetitive elements (SINEs), named SepiaSINE, Sepioth-SINE1, Sepioth-SINE2A, Sepioth-SINE2B and OegopSINE, were isolated from the genomes of three decabrachian species [Sepia officinalis (order Sepiida), Sepiotheuthis lessoniana (suborder Myopsida), and Mastigoteuthis cordiformes (suborder Oegopsida)], by random sequencing and genome screening. In addition, two tRNA-derived SINEs, named IdioSINE1 and IdioSINE2, were further detected from EST (expressed sequence tag) data of Idiosepius paradoxus (order Idiosepiida), using a GenBank FASTA search with a conserved sequence of the SepiaSINE as the query. All the isolated SINEs had a common and unique highly conserved 149-bp sequence in their central structures (Sepioth-SINE2B and IdioSINEs, however, had a continuous 73-bp deletion in the conserved region.), and are therefore grouped as the fourth SINE superfamily "Ceph-SINEs", following the CORE-SINE, V-SINE, and DeuSINE superfamilies. Our analysis suggested that the central conserved region called the "Ceph-domain" might have originated before the diversification of cephalopods (505 myr ago). A sequence alignment of Sepioth-SINE1, Sepioth-SINE2A, and Sepioth-SINE2B demonstrated that Sepioth-SINE2A has a chimeric structure shared with two other SINEs. The above relationship suggests possible template switching in the central conserved domain during reverse transcription for the birth of Sepioth-SINE2A, providing the possibility that the presence of the conserved domain contributed to yield a variety of SINEs during evolution. Furthermore, the distributions of the isolated SINEs showed that order Sepiida, suborders Oegopsida and Myopsida, and order Idiosepiida have their own independent SINE(s), and suggest that order Sepiida can be largely separated into two groups, with clarification of the phylogenetic relatedness between subfamily Sepioteuthinae and the other loliginid squids.
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Affiliation(s)
- Tetsuya Akasaki
- Department of Biological Science, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
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Bush SL, Robison BH, Caldwell RL. Behaving in the dark: locomotor, chromatic, postural, and bioluminescent behaviors of the deep-sea squid Octopoteuthis deletron young 1972. THE BIOLOGICAL BULLETIN 2009; 216:7-22. [PMID: 19218488 DOI: 10.1086/bblv216n1p7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Visual behaviors are prominent components of intra- and interspecific communication in shallow-water cephalopods. Meso- and bathypelagic cephalopods were believed to have limited visual communication, other than bioluminescence, due to the reduced illumination at depth. To explore potential visual behaviors in mesopelagic squid, we used undersea vehicles to observe 76 individuals of Octopoteuthis deletron. In contrast to predictions, we found this species capable of a variety of visually linked behaviors not previously reported for a deep-ocean cephalopod. The resultant ethogram describes numerous chromatic, postural, locomotor, and bioluminescent behavioral components. A few common body patterns-the whole appearance of the individual involving multiple components-are characterized. The behaviors observed from individual squid were compared using a Non-metric Multi-Dimensional Scaling (NMDS) ordination, onto which hydrographic and observation parameters were mapped. Observation length, specimen collection, and contact with the vehicle affected which behaviors were performed. A separate NMDS, analyzing the body patterns, indicated that these sets of behavioral components could be visualized as groups within the NMDS ordination. While the functional roles of the behaviors described are not yet known, our findings of numerous behaviors in O. deletron clearly indicate that bioluminescence is not the sole method of visual communication by deep-sea squid.
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Affiliation(s)
- Stephanie L Bush
- University of California, Berkeley, Department of Integrative Biology, Berkeley, California 94720, USA.
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Strugnell JM, Rogers AD, Prodöhl PA, Collins MA, Allcock AL. The thermohaline expressway: the Southern Ocean as a centre of origin for deep-sea octopuses. Cladistics 2008; 24:853-860. [DOI: 10.1111/j.1096-0031.2008.00234.x] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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BONNAUD LAURE, LU CC, BOUCHER-RODONI RENATA. Morphological character evolution and molecular trees in sepiids (Mollusca: Cephalopoda): is the cuttlebone a robust phylogenetic marker? Biol J Linn Soc Lond 2006. [DOI: 10.1111/j.1095-8312.2006.00664.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yoshida MA, Tsuneki K, Furuya H. Phylogeny of Selected Sepiidae (Mollusca, Cephalopoda) on 12S, 16S, and COI Sequences, with Comments on the Taxonomic Reliability of Several Morphological Characters. Zoolog Sci 2006; 23:341-51. [PMID: 16702767 DOI: 10.2108/zsj.23.341] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Phylogenetic relationships among 11 species of sepiids from Japanese waters and Sepia officinalis from Mediterranean were studied using partial sequences of the mitochondrial 12S rRNA, 16S rRNA, and cytochrome c oxidase subunit I genes. These three genes had been analyzed in an Atlantic species S. elagans and was obtained from database. In the two-gene set analysis (16S+COI), sequence data of another 4 species were added from database. We also studied morphological characters of radulae, tentacular clubs, and cuttlebones. The molecular phylogeny was not congruent with relationships detected by the number of rows in radulae and the arrangement of suckers on the tentacular club. As to the cuttlebone shape, the molecular phylogeny suggests the separation of two groups, Doratosepion species with a lanceolate cuttlebone and the others with a broad cuttlebone. Our molecular phylogenetic study revealed these sepiids are separated into four clades. The first clade includes Sepia officinalis, S. hierrendda, S. bertheloti, S. pharaonis and Sepiella japonica. The second clade consists of S. latimanus and Metasepia tullbergi from sub-tropical waters. The third clade includes Sepia esculenta, S. madokai, S. aculeata and S. lycidas, which have a cuttlebone with a prominent spine. The fourth clade consists of Doratosepion species complex, S. kobiensis, S. lorigera, S. pardex, S. peterseni, and S. sp., which are characterized by a narrow cuttlebone with a distinct outer cone at the posterior end. The lack of membranous structures in the cuttlebone is a synapomorphy for this clade. S. elegans did not clearly belong to any of these clades and might represent the fifth clade.
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Affiliation(s)
- Masa-aki Yoshida
- Department of Biology, Graduate School of Science, Osaka University, Japan.
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Strugnell J, Jackson J, Drummond AJ, Cooper A. Divergence time estimates for major cephalopod groups: evidence from multiple genes. Cladistics 2006; 22:89-96. [DOI: 10.1111/j.1096-0031.2006.00086.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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49
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Akasaki T, Nikaido M, Tsuchiya K, Segawa S, Hasegawa M, Okada N. Extensive mitochondrial gene arrangements in coleoid Cephalopoda and their phylogenetic implications. Mol Phylogenet Evol 2006; 38:648-58. [PMID: 16442311 DOI: 10.1016/j.ympev.2005.10.018] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2005] [Revised: 10/15/2005] [Accepted: 10/27/2005] [Indexed: 11/29/2022]
Abstract
We determined the complete mitochondrial genomes of five cephalopods of the Subclass Coleoidea (Suborder Oegopsida: Watasenia scintillans, Todarodes pacificus, Suborder Myopsida: Sepioteuthis lessoniana, Order Sepiida: Sepia officinalis, and Order Octopoda: Octopus ocellatus) and used them to infer phylogenetic relationships. In our Maximum Likelihood (ML) tree, sepiids (cuttlefish) are at the most basal position of all decapodiformes, and oegopsids and myopsids form a monophyletic clade, thus supporting the traditional classification of the Order Teuthida. We detected extensive gene rearrangements in the mitochondrial genomes of broad cephalopod groups. It is likely that the arrangements of mitochondrial genes in Oegopsida and Sepiida were derived from those of Octopoda, which is thought to be the ancestral order, by entire gene duplication and random gene loss. Oegopsida in particular has undergone long-range gene duplications. We also found that the mitochondrial gene arrangement of Sepioteuthis lessoniana differs from that of Loligo bleekeri, although they belong to the same family. Analysis of both the phylogenetic tree and mitochondrial gene rearrangements of coleoid Cephalopoda suggests that each mitochondrial gene arrangement was acquired after the divergence of each lineage.
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Affiliation(s)
- Tetsuya Akasaki
- Department of Biological Science, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan
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Takumiya M, Kobayashi M, Tsuneki K, Furuya H. Phylogenetic relationships among major species of japanese coleoid cephalopods (Mollusca: Cephalopoda) using three mitochondrial DNA sequences. Zoolog Sci 2005; 22:147-55. [PMID: 15738635 DOI: 10.2108/zsj.22.147] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Phylogenetic relationships among 36 species of major coleoid cephalopods from Japanese waters were studied using partial sequences of three mitochondrial genes, 16S rDNA, 12S rDNA, and cytochrome c oxidase subunit I gene. Octopoda and Decapoda were monophylic groups. Within Sepioidea, Sepiadariidae and Sepiolidae were not closely related to Sepiidae, but rather related to Teuthoidea. Sepiidae with a distinct calcareous shell formed a single cluster. Myopsida was closely related to Oegopsida. Within Octopoda, Opisthoteuthis depressa and Argonauta argo diverged earlier than Octopodiidae. The common octopuses in Japanese waters were separated into three clusters. The first cluster occupied a basal position, and includes large-sized octopuses, such as Enteroctopus dofleini and Octopus (Paroctopus) conispadiceus from the continental shelf and upper slope. The second cluster consisted of long-armed octopuses, such as O. ornatus, O. minor, and O. sasakii. The third cluster contained small- to medium-sized octopus, such as Amphioctopus fangsiao, A. areolatus, O. cyaneus, and O. vulgaris, in which several species possess ocelli on the web. The second cluster formed the sister group to the third cluster.
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Affiliation(s)
- Mikio Takumiya
- Department of Biology, Graduate School of Science, Osaka University, Japan
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