1
|
Ulrich NJ, Shen G, Bryant DA, Miller SR. Ecological diversification of a cyanobacterium through divergence of its novel chlorophyll d-based light-harvesting system. Curr Biol 2024; 34:2972-2979.e4. [PMID: 38851184 DOI: 10.1016/j.cub.2024.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/07/2024] [Accepted: 05/13/2024] [Indexed: 06/10/2024]
Abstract
The evolution of novel traits can have important consequences for biological diversification. Novelties such as new structures are associated with changes in both genotype and phenotype that often lead to changes in ecological function.1,2 New ecological opportunities provided by a novel trait can trigger subsequent trait modification or niche partitioning3; however, the underlying mechanisms of novel trait diversification are still poorly understood. Here, we report that the innovation of a new chlorophyll (Chl) pigment, Chl d, by the cyanobacterium Acaryochloris marina was followed by the functional divergence of its light-harvesting complex. We identified three major photosynthetic spectral types based on Chl fluorescence properties for a collection of A. marina laboratory strains for which genome sequence data are available,4,5 with shorter- and longer-wavelength types more recently derived from an ancestral intermediate phenotype. Members of the different spectral types exhibited extensive variation in the Chl-binding proteins as well as the Chl energy levels of their photosynthetic complexes. This spectral-type divergence is associated with differences in the wavelength dependence of both growth rate and photosynthetic oxygen evolution. We conclude that the divergence of the light-harvesting apparatus has consequently impacted A. marina ecological diversification through specialization on different far-red photons for photosynthesis.
Collapse
Affiliation(s)
- Nikea J Ulrich
- Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
| | - Gaozhong Shen
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, 406 Althouse Lab, University Park, PA 16802, USA
| | - Donald A Bryant
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, 406 Althouse Lab, University Park, PA 16802, USA
| | - Scott R Miller
- Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA.
| |
Collapse
|
2
|
Golikov AV, Xavier JC, Ceia FR, Queirós JP, Bustamante P, Couperus B, Guillou G, Larionova AM, Sabirov RM, Somes CJ, Hoving HJ. Insights on long-term ecosystem changes from stable isotopes in historical squid beaks. BMC Ecol Evol 2024; 24:90. [PMID: 38956464 PMCID: PMC11221165 DOI: 10.1186/s12862-024-02274-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 06/17/2024] [Indexed: 07/04/2024] Open
Abstract
BACKGROUND Assessing the historical dynamics of key food web components is crucial to understand how climate change impacts the structure of Arctic marine ecosystems. Most retrospective stable isotopic studies to date assessed potential ecosystem shifts in the Arctic using vertebrate top predators and filter-feeding invertebrates as proxies. However, due to long life histories and specific ecologies, ecosystem shifts are not always detectable when using these taxa. Moreover, there are currently no retrospective stable isotopic studies on various other ecological and taxonomic groups of Arctic biota. To test whether climate-driven shifts in marine ecosystems are reflected in the ecology of short-living mesopredators, ontogenetic changes in stable isotope signatures in chitinous hard body structures were analysed in two abundant squids (Gonatus fabricii and Todarodes sagittatus) from the low latitude Arctic and adjacent waters, collected between 1844 and 2023. RESULTS We detected a temporal increase in diet and habitat-use generalism (= opportunistic choice rather than specialization), trophic position and niche width in G. fabricii from the low latitude Arctic waters. These shifts in trophic ecology matched with the Atlantification of the Arctic ecosystems, which includes increased generalization of food webs and higher primary production, and the influx of boreal species from the North Atlantic as a result of climate change. The Atlantification is especially marked since the late 1990s/early 2000s. The temporal patterns we found in G. fabricii's trophic ecology were largely unreported in previous Arctic retrospective isotopic ecology studies. Accordingly, T. sagittatus that occur nowadays in the high latitude North Atlantic have a more generalist diet than in the XIXth century. CONCLUSIONS Our results suggest that abundant opportunistic mesopredators with short life cycles (such as squids) are good candidates for retrospective ecology studies in the marine ecosystems, and to identify ecosystem shifts driven by climate change. Enhanced generalization of Arctic food webs is reflected in increased diet generalism and niche width in squids, while increased abundance of boreal piscivorous fishes is reflected in squids' increased trophic position. These findings support opportunism and adaptability in squids, which renders them as potential winners of short-term shifts in Arctic ecosystems.
Collapse
Affiliation(s)
| | - José C Xavier
- MARE-Marine and Environmental Sciences Centre/ARNET-Aquatic Research Network, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
- British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
| | - Filipe R Ceia
- MARE-Marine and Environmental Sciences Centre/ARNET-Aquatic Research Network, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - José P Queirós
- MARE-Marine and Environmental Sciences Centre/ARNET-Aquatic Research Network, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
- British Antarctic Survey, Natural Environment Research Council, Cambridge, UK
| | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-La Rochelle Université, La Rochelle, France
| | - Bram Couperus
- Wageningen Marine Research, Wageningen University and Research, IJmuiden, The Netherlands
| | - Gaël Guillou
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-La Rochelle Université, La Rochelle, France
| | | | | | | | - Henk-Jan Hoving
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| |
Collapse
|
3
|
Golikov AV, Gudmundsson G, Blicher ME, Jørgensen LL, Korneeva EI, Olafsdottir SH, Shagimardanova EI, Shigapova LH, Zakharov DV, Zimina OL, Sabirov RM. A review of the genus Muusoctopus (Cephalopoda: Octopoda) from Arctic waters. ZOOLOGICAL LETTERS 2023; 9:21. [PMID: 37974237 PMCID: PMC10655294 DOI: 10.1186/s40851-023-00220-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 09/20/2023] [Indexed: 11/19/2023]
Abstract
We report two Arctic species of incirrate octopods new to science. One is formally described here as Muusoctopus aegir Golikov, Gudmundsson & Sabirov sp. nov. while the other, Muusoctopus sp. 1, is not formally described due to a limited number of samples (all are immature individuals). These two species differ from each other, and from other Muusoctopus, especially in: 1) absence of stylets (in M. aegir sp. nov.); 2) proportions of mantle and head; 3) funnel organ morphology (W-shaped with medial and marginal limbs of equal length in M. aegir sp. nov., or medial are slightly longer; V V-shaped with medial limbs slightly longer and broader than marginal in Muusoctopus sp. 1); 4) sucker and gill lamellae counts; 5) relative arm length and sucker diameter; and 6) male reproductive system relative size and morphology. Species of Muusoctopus now comprise four of 12 known Arctic cephalopods. Additionally, this study provides: a) new data on the morphology and reproductive biology of M. johnsonianus and M. sibiricus, and a diagnosis of M. sibiricus; b) the equations to estimate mantle length and body mass from beak measurements of M. aegir sp. nov. and M. johnsonianus; c) a cytochrome c oxidase subunit I gene barcode for M. sibiricus; d) new data on the ecology and distribution of all studied species; and e) a data table for the identification of northern North Atlantic and Arctic species of Muusoctopus.
Collapse
Affiliation(s)
- Alexey V Golikov
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Dusternbrooker Weg 20, 24105, Kiel, Germany.
| | - Gudmundur Gudmundsson
- Collections and Systematics Department, Icelandic Institute of Natural History, Urriðaholtsstræti 6-8, 210, Gardabaer, Iceland
| | - Martin E Blicher
- NIRAS A/S, Ceres Allé 3, 8000, Aarhus, Denmark
- Greenland Institute of Natural Resources, Greenland Climate Research Centre, Kivioq 2, 3900, Nuuk, Greenland
| | - Lis L Jørgensen
- Institute of Marine Research, Tromsø Department, P.O. Box 6606 Langnes, 9294, Tromsø, Norway
| | - Ekaterina I Korneeva
- Department of Zoology, Kazan Federal University, Kremlyovskaya Str. 18, 420008, Kazan, Russia
| | - Steinunn H Olafsdottir
- Marine and Freshwater Research Institute, Demersal Division, Fornubúðir 5, 220, Hafnarfjordur, Iceland
| | - Elena I Shagimardanova
- Kazan Federal University, Extreme Biology Laboratory, Volkova Str. 18, 420021, Kazan, Russia
| | - Leyla H Shigapova
- Kazan Federal University, Extreme Biology Laboratory, Volkova Str. 18, 420021, Kazan, Russia
| | - Denis V Zakharov
- Zoological Institute of Russian Academy of Sciences, Laboratory of Marine Research, Universitetskaya Nab. 1, 199034, Sankt-Petersburg, Russia
| | - Olga L Zimina
- Zoological Institute of Russian Academy of Sciences, Laboratory of Marine Research, Universitetskaya Nab. 1, 199034, Sankt-Petersburg, Russia
- Murmansk Marine Biological Institute, Laboratory of Zoobenthos, Vladimirskaya Str. 17, 183010, Murmansk, Russia
| | - Rushan M Sabirov
- Department of Zoology, Kazan Federal University, Kremlyovskaya Str. 18, 420008, Kazan, Russia
| |
Collapse
|
6
|
Xavier JC, Golikov AV, Queirós JP, Perales-Raya C, Rosas-Luis R, Abreu J, Bello G, Bustamante P, Capaz JC, Dimkovikj VH, González AF, Guímaro H, Guerra-Marrero A, Gomes-Pereira JN, Hernández-Urcera J, Kubodera T, Laptikhovsky V, Lefkaditou E, Lishchenko F, Luna A, Liu B, Pierce GJ, Pissarra V, Reveillac E, Romanov EV, Rosa R, Roscian M, Rose-Mann L, Rouget I, Sánchez P, Sánchez-Márquez A, Seixas S, Souquet L, Varela J, Vidal EAG, Cherel Y. The significance of cephalopod beaks as a research tool: An update. Front Physiol 2022; 13:1038064. [PMID: 36467695 PMCID: PMC9716703 DOI: 10.3389/fphys.2022.1038064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 10/25/2022] [Indexed: 11/17/2022] Open
Abstract
The use of cephalopod beaks in ecological and population dynamics studies has allowed major advances of our knowledge on the role of cephalopods in marine ecosystems in the last 60 years. Since the 1960's, with the pioneering research by Malcolm Clarke and colleagues, cephalopod beaks (also named jaws or mandibles) have been described to species level and their measurements have been shown to be related to cephalopod body size and mass, which permitted important information to be obtained on numerous biological and ecological aspects of cephalopods in marine ecosystems. In the last decade, a range of new techniques has been applied to cephalopod beaks, permitting new kinds of insight into cephalopod biology and ecology. The workshop on cephalopod beaks of the Cephalopod International Advisory Council Conference (Sesimbra, Portugal) in 2022 aimed to review the most recent scientific developments in this field and to identify future challenges, particularly in relation to taxonomy, age, growth, chemical composition (i.e., DNA, proteomics, stable isotopes, trace elements) and physical (i.e., structural) analyses. In terms of taxonomy, new techniques (e.g., 3D geometric morphometrics) for identifying cephalopods from their beaks are being developed with promising results, although the need for experts and reference collections of cephalopod beaks will continue. The use of beak microstructure for age and growth studies has been validated. Stable isotope analyses on beaks have proven to be an excellent technique to get valuable information on the ecology of cephalopods (namely habitat and trophic position). Trace element analyses is also possible using beaks, where concentrations are significantly lower than in other tissues (e.g., muscle, digestive gland, gills). Extracting DNA from beaks was only possible in one study so far. Protein analyses can also be made using cephalopod beaks. Future challenges in research using cephalopod beaks are also discussed.
Collapse
Affiliation(s)
- José C. Xavier
- Department of Life Sciences, Marine and Environmental Sciences Centre/ ARNET–Aquatic Research Network, University of Coimbra, Coimbra, Portugal
- British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom
| | | | - José P. Queirós
- Department of Life Sciences, Marine and Environmental Sciences Centre/ ARNET–Aquatic Research Network, University of Coimbra, Coimbra, Portugal
- British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom
| | | | | | - José Abreu
- Department of Life Sciences, Marine and Environmental Sciences Centre/ ARNET–Aquatic Research Network, University of Coimbra, Coimbra, Portugal
- British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom
| | | | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, La Rochelle, France
- Institut Universitaire de France (IUF), Paris, France
| | - Juan C. Capaz
- Center of Marine Sciences, University of Algarve, Campus de Gambelas, Faro, Portugal
| | - Valerie H. Dimkovikj
- Department of Marine Science, Coastal Carolina University, Conway, SC, United States
| | | | - Hugo Guímaro
- Department of Life Sciences, Marine and Environmental Sciences Centre/ ARNET–Aquatic Research Network, University of Coimbra, Coimbra, Portugal
- British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom
| | - Airam Guerra-Marrero
- IU-ECOAQUA, University of Las Palmas de Gran Canaria, Edf. Ciencias Básicas, Campus de Tafira, Las Palmas de Gran Canaria, Spain
| | | | | | | | - Vladimir Laptikhovsky
- Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Lowestoft, United Kingdom
| | | | - Fedor Lishchenko
- Laboratory for Ecology and Morphology of Marine Invertebrates, A.N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Moscow, Russia
| | - Amanda Luna
- Department of Ecology and Animal Biology, Faculty of Marine Sciences, University of Vigo, Vigo, Spain
| | - Bilin Liu
- College of Marine Sciences, Shanghai Ocean University, Shanghai, China
| | | | - Vasco Pissarra
- MARE—Marine and Environmental Sciences Centre/ARNET–Aquatic Research Network, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Cascais, Portugal
| | - Elodie Reveillac
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, La Rochelle, France
| | - Evgeny V. Romanov
- Centre Technique de Recherche et de Valorisation des Milieux Aquatiques (CITEB), Le Port, Île de la Réunion, France
| | - Rui Rosa
- MARE—Marine and Environmental Sciences Centre/ARNET–Aquatic Research Network, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Cascais, Portugal
| | - Marjorie Roscian
- Centre de Recherche en Paléontologie-Paris (CR2P), CNRS, Sorbonne Université, Paris, France
| | - Lisa Rose-Mann
- University of South Florida, College of Marine Science, St. Petersburg, FL, United States
| | - Isabelle Rouget
- Centre de Recherche en Paléontologie-Paris (CR2P), CNRS, Sorbonne Université, Paris, France
| | - Pilar Sánchez
- Institut de Ciènces del Mar, CSIC, Psg. Marítim de la Barceloneta, Barcelona, Spain
| | | | - Sónia Seixas
- Department of Life Sciences, Marine and Environmental Sciences Centre/ ARNET–Aquatic Research Network, University of Coimbra, Coimbra, Portugal
- Universidade Aberta, Rua Escola Politécnica, Lisboa, Portugal
| | - Louise Souquet
- Department of Mechanical Engineering, Faculty of Engineering Science, University College London, London, United Kingdom
| | - Jaquelino Varela
- MARE—Marine and Environmental Sciences Centre/ARNET–Aquatic Research Network, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Cascais, Portugal
| | - Erica A. G. Vidal
- Center for Marine Studies—Federal University of Parana (UFPR), Pontal do Paraná, PR, Brazil
| | - Yves Cherel
- Centre d’Etudes Biologiques de Chizé, UMR 7372 du CNRS-La Rochelle Université, Villiers-en-Bois, France
| |
Collapse
|