Article
Biochemistry & Molecular Biology
Alexander Goikoetxea, Arianna Servili, Camille Houdelet, Olivier Mouchel, Sophie Hermet, Frederic Clota, Johan Aerts, Juan Ignacio Fernandino, Francois Allal, Marc Vandeputte, Eva Blondeau-Bidet, Benjamin Geffroy
Summary: This study aimed to investigate the relationship between cortisol and the determination of sexual fate in European sea bass. Two temperature-based experiments were conducted to assess the effects of thermal treatments on sex determination and differentiation. The results showed no significant differences between males and females in cortisol production and regulatory mechanisms. These findings provide important physiological, molecular, and histochemical evidence for the sex determination in European sea bass.
FISH PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Patricia Moreno, Juan Gemez-Mata, Daniel Alvarez-Torres, Esther Garcia -Rosado, Julia Bejar, M. Carmen Alonso
Summary: This study identified and characterized two rtp3 genes in European sea bass and analyzed their transcriptional responses to external stimuli and viral infection. The results revealed distinct expression patterns of these genes, with rtp3 X2 playing a crucial role in controlling betanodavirus infection.
MOLECULAR IMMUNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Maria Papadaki, Elisavet Kaitetzidou, Ioannis E. Papadakis, Dimitris G. Sfakianakis, Nikos Papandroulakis, Constantinos C. Mylonas, Elena Sarropoulou
Summary: Temperature changes can affect the activity, function, and well-being of teleosts. This study investigated the early larval development of European sea bass at different temperatures and found temperature-specific miRNA expression that targeted genes involved in reproduction and immune response. The study also observed temperature-specific effects on growth, sex, vision, and skeletal deformities.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Genetics & Heredity
Lei Kang, Lunwen Qian, Ming Zheng, Liyang Chen, Hao Chen, Liu Yang, Liang You, Bin Yang, Mingli Yan, Yuanguo Gu, Tianyi Wang, Sarah-Veronica Schiessl, Hong An, Paul Blischak, Xianjun Liu, Hongfeng Lu, Dawei Zhang, Yong Rao, Donghai Jia, Dinggang Zhou, Huagui Xiao, Yonggang Wang, Xinghua Xiong, Annaliese S. Mason, J. Chris Pires, Rod J. Snowdon, Wei Hua, Zhongsong Liu
Summary: This study presents a chromosome-scale de novo assembly of a yellow-seeded Brassica juncea genome and population analyses of 480 accessions from 38 countries, shedding light on the origin, domestication history, and morphological diversification of B. juncea. The research supports the hypothesis that B. juncea most likely originated in West Asia 8,000-14,000 years ago via natural interspecific hybridization, and new crop types evolved through spontaneous gene mutations and introgressions along three independent routes of eastward expansion. Selective sweeps, genome-wide trait associations, and tissue-specific RNA-sequencing analysis provide insights into the domestication history of flowering time and seed weight, as well as human selection for morphological diversification in this versatile species.
Review
Fisheries
S. Picchietti, A. Miccoli, A. M. Fausto
Summary: This review summarizes and discusses the trends and findings in scientific literature on the gut mucosa immune role in European sea bass, providing an updated overview on the gastrointestinal tract functional regionalization and defence barriers. The review also covers immune cells in two immunologically-relevant intestinal compartments, mucosal immunoglobulins, gut microbiota, dietary manipulation impacts, and oral vaccination strategies for sea bass vaccine delivery.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Environmental Sciences
Stephen Knobloch, Joris Philip, Sebastien Ferrari, David Benhaim, Martine Bertrand, Isabelle Poirier
Summary: This study examined the impact of ultrasound on farmed European sea bass and found that while growth and survival were not affected, ultrasound exposure led to disruption of gill and skin microbiota, including an increase in potential pathogenic bacteria. This highlights the need for further research on the long-term effects of ultrasonic antifouling control on the health and well-being of farmed fish.
MARINE POLLUTION BULLETIN
(2021)
Article
Veterinary Sciences
Lucia Vazquez-Salgado, Francesco Pascoli, Andrea Marsella, Lorena Biasini, Alessandra Buratin, Tobia Pretto, Miriam Abbadi, Erica Melchiotti, Isabel Bandin, Anna Toffan
Summary: This study demonstrated the horizontal transmission of NNV to sea bass larvae through rotifers, highlighting the importance of establishing strict routine controls on live food to prevent the introduction of potential pathogens to hatcheries.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Fisheries
Carmen Gonzalez-Fernandez, Maria A. Esteban, Alberto Cuesta
Summary: The study identified stimulatory CD28 and inhibitory CTLA4 coreceptors in European sea bass, with high expression in lymphoid organs and liver. Expression of these genes was up-regulated in lymphocytes stimulated with T mitogens. There was differential regulation of cd28 and ctla4 transcription levels in organs of fish challenged with nodavirus, showing a significant correlation with transcription of T cell markers.
FISH & SHELLFISH IMMUNOLOGY
(2021)
Article
Multidisciplinary Sciences
Noelia Cruz-Perez, Jesica Rodriguez-Martin, Celso Garcia, Florin Ioras, Nicholas Christofides, Marco Vieira, Manfredi Bruccoleri, Juan C. Santamarta
Summary: Ports are crucial for Europe's economic development, especially on islands. This article examines the environmental impact of leisure marinas on European islands by analyzing their carbon and water footprints. The results suggest the need to reduce the environmental footprint of marinas on islands due to their vulnerability to climate change compared to mainland locations in Europe.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Jennifer A. A. Graham, Joseph W. W. Watson, Luz Maria Garcia Garcia, Kirsty Bradley, Robin Bradley, Mary Brown, Benjamin J. J. Ciotti, Derek Goodwin, Richard D. M. Nash, William K. K. Roche, Ciara Wogerbauer, Kieran Hyder
Summary: The sea bass stock around the UK has declined rapidly over the past decade due to overfishing and low recruitment. To develop effective management strategies, understanding the factors that affect sea bass settlement on nursery grounds is important. An individual-based model has been used to investigate these factors, with simulations showing similarities to empirical data but also highlighting the need for further investigation into differences between modelled supply and observations.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Food Science & Technology
Lalita Chotphruethipong, Thunwa Binlateh, Pilaiwanwadee Hutamekalin, Rotimi E. Aluko, Surapun Tepaamorndech, Bin Zhang, Soottawat Benjakul
Summary: The study demonstrates that hydrolyzed collagen derived from defatted sea bass skin can promote proliferation and differentiation of preosteoblast cells, enhance alkaline phosphatase activity and mineralization, increase calcium depositions, and elevate the expressions of RUNX2 and p-Akt, suggesting its potential as a functional ingredient for promoting bone strength.
Article
Microbiology
Lorena Biasini, Paola Berto, Miriam Abbadi, Alessandra Buratin, Marica Toson, Andrea Marsella, Anna Toffan, Francesco Pascoli
Summary: European sea bass is an important species for Mediterranean aquaculture and is susceptible to betanodavirus infections. This study evaluated the pathogenicity of different RGNNV/SJNNV strains in European sea bass and found that reassortants of these strains can cause varying levels of mortality. Additionally, high viral loads were detected in asymptomatic survivors, suggesting a possible reservoir role for the species. Comparison of complete genomic segments identified amino acid residues likely involved in the variable pathogenicity of RGNNV/SJNNV strains in European sea bass.
Article
Environmental Sciences
Cassandre Aimon, Christophe Lebigre, Nicolas Le Bayon, Stephane Le Floch, Guy Claireaux
Summary: This study demonstrates that juvenile sea bass exposed to oil spills exhibit transient behavioral impairments, with a dose-response relationship observed. Recovery capacities were seen within the first 10 days post-exposure, although fish may require more time for full recovery. The alterations in behavior may be attributed to neurosensory or physiological defects caused by oil exposure, leading to sedative behaviors resembling anesthesia.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Engineering, Marine
Mary E. M. Larkin, Allen R. Place
Summary: Incorporating environmentally sustainable plant-based protein sources into aquafeeds is important, but the effects of specific plant proteins on different fish species need to be evaluated. Previous studies showed that wheat gluten at less than 4% inclusion had a negative impact on the growth and survival rate of juvenile cobia. In this study, the effects of wheat gluten inclusion in a plant-based diet for juvenile European sea bass were evaluated, and it was found that 4% dietary wheat gluten was well tolerated by the fish.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Environmental Sciences
Daniel Montero, Simona Rimoldi, Silvia Torrecillas, Jorge Rapp, Federico Moroni, Alicia Herrera, May Gomez, Alvaro Fernandez-Montero, Genciana Terova
Summary: Plastic pollution is a global issue affecting marine ecosystems, with microplastics posing a threat to marine organisms. This study revealed that ingestion of microplastics and pollutants by marine fish led to inflammatory responses in the intestine and alterations in gut microbiota, indicating potential risks for marine fish.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Fisheries
Francois Bonhomme, Laura Meyer, Christine Arbiol, Daniela Banaru, Lilia Bahri-Sfar, Karima Fadhlaoui-Zid, Petr Strelkov, Marco Arculeo, Laurent Soulier, Jean-Pierre Quignard, Pierre-Alexandre Gagnaire
Summary: The study reveals that coastal anchovies in the Mediterranean share a common ancestor, despite limited gene flow, there is still significant genetic differentiation. Therefore, it is proposed that coastal anchovies should have their own species status and emphasize the need for a unified taxonomical framework for future research and management.
JOURNAL OF FISH BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Luke K. McKenzie, Marie Flamme, Patrick S. Felder, Johannes Karges, Frederic Bonhomme, Albert Gandioso, Christian Malosse, Gilles Gasser, Marcel Hollenstein
Summary: Ruthenium complexes and aptamers can be used as photosensitizers in photodynamic therapy, but their lack of inherent targeting to disease sites may lead to side effects and the need for higher doses. This study presents the first direct conjugation of a Ru(ii) polypyridyl complex-based photosensitizer to an aptamer, and evaluates its in vitro cancer cell specific photosensitization.
RSC CHEMICAL BIOLOGY
(2022)
Article
Evolutionary Biology
Fanny Touchard, Alexis Simon, Nicolas Bierne, Frederique Viard
Summary: Portuarization, the repeated evolution of marine species in port ecosystems under human-altered selective pressures, drives various evolutionary processes including establishment of new connectivity hubs, adaptive responses to new chemicals or biotic communities, and hybridization between lineages. However, there are still important knowledge gaps and further research is needed to understand this phenomenon better.
EVOLUTIONARY APPLICATIONS
(2023)
Article
Evolutionary Biology
Aurelien De Jode, Alan Le Moan, Kerstin Johannesson, Rui Faria, Sean Stankowski, Anja Marie Westram, Roger K. Butlin, Marina Rafajlovic, Christelle Fraisse
Summary: Understanding population divergence and speciation is crucial for evolutionary biology. High species diversity in the sea is considered a paradox due to the lack of geographical barriers. However, combining genome-wide data with demographic modelling has provided new insights. Studies show that barriers to gene flow exist in the sea but divergence can also occur without strict isolation.
EVOLUTIONARY APPLICATIONS
(2023)
Article
Multidisciplinary Sciences
Terence Legrand, Anne Chenuil, Enrico Ser-Giacomi, Sophie Arnaud-Haond, Nicolas Bierne, Vincent Rossi
Summary: The study used gene flow to predict genetic differentiation among different populations in the Mediterranean basin, finding that the multi-generational coalescent connectivity model outperformed others significantly, which is of great significance for unraveling the eco-evolutionary forces shaping sedentary population structures.
NATURE COMMUNICATIONS
(2022)
Article
Genetics & Heredity
Marwan Elkrewi, Uladzislava Khauratovich, Melissa A. Toups, Vincent Kiplangat Bett, Andrea Mrnjavac, Ariana Macon, Christelle Fraisse, Luca Sax, Ann Kathrin Huylmans, Francisco Hontoria, Beatriz Vicoso
Summary: This study provides a detailed characterization of sex chromosomes and asexual transmission in Eurasian brine shrimp. The researchers identified a small differentiated region of sex chromosomes that is shared by all sexual and asexual lineages, supporting the shared ancestry of these chromosomes. It was also found that recombination suppression has independently spread to larger sections of the chromosome in the American and Eurasian lineages. Additionally, the study suggests that parthenogenesis in these shrimp is partly controlled by a locus on the Z chromosome, highlighting the interplay between sex determination and asexuality.
Article
Biology
Julie J. H. Nati, Felipe R. Blasco, Charles Rodde, Alain Vergnet, Francois Allal, Marc Vandeputte, David J. McKenzie
Summary: Two thermal ramping protocols (CTSmax and CTmax) were used to expose eight juvenile European seabass, resulting in different effects on the fish depending on the level of aerobic activity and tolerance endpoint. Oxygen limitation was indicated in the CTSmax protocol, causing fatigue at 30.3 degrees Celsius, while loss of equilibrium occurred at 34.0 degrees Celsius in the CTmax protocol. Therefore, systemic oxygen supply is significant for the tolerance of acute warming in seabass, but the effect depends on the physiological context and endpoint used.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2023)
Article
Fisheries
Josep Calduch-Giner, Enrique Rosell-Moll, Mathieu Besson, Alain Vergnet, Jean-Sebastien Bruant, Frederic Clota, Paul George Holhorea, Francois Allal, Marc Vandeputte, Jaume Perez-Sanchez
Summary: This study aims to explore how genetic improvement of feed conversion ratio (FCR) in gilthead sea bream (Sparus aurata) leads to changes in transcriptional and behavioral patterns. Fish with high FCR (FCR+) and low FCR (FCR-) were established and analyzed at different stages of growth. The results show that FCR+ and FCR- fish exhibit differences in behavior, energy partitioning, and gene expression profiles in liver and muscle tissues. These findings contribute to a better understanding of the mechanisms involved in improving FCR in farmed gilthead sea bream.
AQUACULTURE REPORTS
(2023)
Article
Fisheries
Antoine Jourdan, Romain Morvezen, Florian Enez, Pierrick Haffray, Adeline Lange, Emilie Vetois, Francois Allal, Florence Phocas, Jerome Bugeon, Lionel Degremont, Pierre Boudry
Summary: Selective breeding programs have been initiated for the Pacific oyster Crassostrea gigas, using genomic tools to improve growth and disease resistance. The study evaluated the potential of genomic selection (GS) for growth-related and shell color traits in commercially selected populations. The results showed a high correlation between growth-related traits and low correlation with color traits. The accuracy of prediction was higher with the genomic model compared to the classical model, indicating the potential of GS in mixed-family breeding programs for C. gigas.
Article
Fisheries
D. Montero, M. Carvalho, G. Terova, R. Fontanillas, A. Serradell, R. Gines, V. Tuset, F. Acosta, S. Rimoldi, A. Bajek, P. Haffray, F. Allal, S. Torrecillas
Summary: The present study aimed to determine the effectiveness of genetic selection for growth in European sea bass in response to a challenge with an alternative diet. The results showed that European sea bass selected for 7 generations performed better in terms of growth, with decreased fat content and increased nutritional value of flesh. The dietary treatment had little effect on fish growth performance, indicating successful replacement of fishmeal and fish oil. Therefore, multi-trait genetic selection can improve the ability of European sea bass to adapt to alternative feeds with low fishmeal and fish oil.
Article
Fisheries
S. Torrecillas, S. Rimoldi, D. Montero, A. Serradell, F. Acosta, R. Fontanillas, F. Allal, P. Haffray, A. Bajek, G. Terova
Summary: The study aimed to replace dietary fishmeal/fish oil without affecting European sea bass performance and health status. The study found that diet and genotype have a significant impact on the gut bacterial composition of sea bass, but without negative effects on their health and growth. Selectively bred sea bass had a more adaptable gut microbiota composition.
Article
Cell Biology
Murielle Alund, Meredith Cenzer, Nicolas Bierne, Janette W. Boughman, Jose Cerca, Mattheau S. Comerford, Alessandro Culicchi, Brian Langerhans, S. Eryn Mcfarlane, Markus H. Most, Henry North, Anna Qvarnstrom, Mark Ravinet, Richard Svanback, Scott A. Taylor
Summary: Anthropogenic impacts on the environment have both positive and negative effects on speciation processes. Human activities can generate spatial isolation and genetic divergence, but they can also cause sudden secondary contact and hybridization. Changes in the environment created by human actions can create new ecological niches and drive diversification, but they can also lead to niche loss and extinctions. It is important to monitor and understand these impacts in order to promote diversification and enhance biodiversity.
COLD SPRING HARBOR PERSPECTIVES IN BIOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Antonio Serradell, Daniel Montero, Genciana Terova, Simona Rimoldi, Alex Makol, Felix Acosta, Aline Bajek, Pierrick Haffray, Francois Allal, Silvia Torrecillas
Summary: Husbandry practices in aquaculture may cause stress and oxidative damage to fish tissues. Functional ingredients can reinforce the fish's antioxidant response and stress tolerance. Selective breeding strategies have also shown a correlation between fish growth and stress reactiveness, which is important for species domestication.
Article
Agriculture, Dairy & Animal Science
Emilie Delpuech, Marc Vandeputte, Romain Morvezen, Anastasia Bestin, Mathieu Besson, Joseph Brunier, Aline Bajek, Boudjema Imarazene, Yoannah Francois, Olivier Bouchez, Xavier Cousin, Charles Poncet, Thierry Morin, Jean-Sebastien Bruant, Beatrice Chatain, Pierrick Haffray, Florence Phocas, Francois Allal
Summary: This study identified a genomic region associated with VNN resistance, including the ZDHHC14 and IFI6/IFI27-like genes. The findings can contribute to the improvement of sea bass breeding programs through marker-assisted genomic selection for more resistant fish.
GENETICS SELECTION EVOLUTION
(2023)
Article
Fisheries
Simona Rimoldi, Daniel Montero, Silvia Torrecillas, Antonio Serradell, Felix Acosta, Pierrick Haffray, Barbara Hostins, Ramon Fontanillas, Francois Allal, Aline Bajek, Genciana Terova
Summary: The objective of this study was to determine if selected fish genotypes could benefit from the use of functional additives in novel aqua feed formulations to improve growth performance, gut microbiota, immune response, and disease resistance in fish. The results showed that fish from the high growth genotype performed better in terms of body weight, relative growth, SGR, and DGI. The diet had a significant effect on fish survival and there was an interaction between genotype and diet in relation to gene expression in the distal gut. The study also revealed the impact of additives on the relative abundance of certain taxa in the fish gut microbiota.
AQUACULTURE REPORTS
(2023)
