Article
Biochemistry & Molecular Biology
Julia Leme Pablos, Ana Kristina Silva, Noemy Seraphim, Luiza de Moraes Magaldi, Anete Pereira de Souza, Andre Victor Lucci Freitas, Karina Lucas Silva-Brandao
Summary: The study on Atlantic Forest White Morpho butterflies shows that there is no clear species diversification and population structure among the populations, suggesting that the current distinction between the two species is unreasonable. Northern samples exhibit more intragroup structure, and clustering tests indicate the existence of three genetic clusters, with turnover between the states of Paran ' a and Sa similar to o Paulo.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2021)
Article
Chemistry, Medicinal
Zahira Belattmania, Sanaa Bhaby, Amal Nadri, Khaoulaa Khaya, Fouad Bentiss, Charafeddine Jama, Abdeltif Reani, Vitor Vasconcelos, Brahim Sabour
Summary: Agar extracted from Gracilaria gracilis from Dakhla showed superior gel properties compared to native agar, suggesting potential for producing high-quality agar. Further investigation is needed to determine seasonal variability of this biopolymer.
Article
Oceanography
Camille Moreau, Quentin Jossart, Bruno Danis, Marc Eleaume, Henrik Christiansen, Charlene Guillaumot, Rachel Downey, Thomas Saucede
Summary: The diversity and taxonomy of sea stars in the Southern Ocean need to be revised and explored further, as molecular results indicate recent diversification at the genus and species levels. This supports a scenario of invasion and exchange events between the Southern Ocean and adjacent regions, with clade diversification during periods of rapid environmental changes.
PROGRESS IN OCEANOGRAPHY
(2021)
Article
Biotechnology & Applied Microbiology
Amanda R. Chiaramonte, Andre V. F. Faria, Estela M. Plastino
Summary: Gracilaria caudata is an economically important genus along the Brazilian coast. The thermal tolerance and putative occurrence of ecotypes of this species are evaluated in this study. Different temperatures were tested on the growth rates and photosynthesis of female gametophytes from four populations along the Brazilian coast. Results show that the populations differ in their thermal performance and the populations from Espírito Santo and Santa Catarina may not withstand predicted temperature increases.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Hyung-Bae Jeon, Ha Youn Song, Ho Young Suk, In-Chul Bang
Summary: This study aimed to reconstruct the speciation process and phylogenetic dispersal of the endemic Korean freshwater fish species Coreoleuciscus. Through analysis of mitochondrial cytochrome c oxidate subunit I, the study found that the species originated from independent colonization in ancestral populations during the Late Plio-Pleistocene. Evidence was also provided for the species' origin in the Eastern Eurasian continent and subsequent dispersal into East Asia. The study highlighted the importance of genetic diversity in large drainage populations for the conservation and management of Coreoleuciscus.
Article
Biotechnology & Applied Microbiology
Xulei Wang, Menglin Guo, Shusheng Yan, Yongqiang Wang, Zhongmin Sun, Bangmei Xia, Guangce Wang
Summary: This study aims to understand the phylogeny and diversity of Gracilariaceae in Chinese waters by constructing a DNA sequence database. Through the analysis of rbcL and COI-5P genes, 19 Gracilaria and 3 Gracilariopsis species were identified, including a new diminutive species Gracilaria tsengii sp. nov. and a new record species G. perplexa.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Plant Sciences
Fernanda P. P. Cid-Alda, Alejandro E. E. Montecinos, Marie Laure Guillemin
Summary: This study aimed to determine the temporal and spatial variations in the genetic structure of four marine Bangiales species. Results showed a strong genetic spatial structure at the regional scale and a potential gene flow barrier related to the Valdivia River discharge. The genetic structure of all four species was stable throughout the year.
JOURNAL OF PHYCOLOGY
(2023)
Article
Multidisciplinary Sciences
Abdulaziz R. Alqahtani, Ahmed Badry, Sayed A. M. Amer, Fahd Mohammed Abd Al Galil, Mervat A. Ahmed, Zuhair S. Amr
Summary: This study investigated the genetic variation in seven populations of A. crassicauda from Saudi Arabia, revealing the presence of three distinct lineages and supporting the existence of two distinct populations, possibly indicating a putative different species. Further morphological studies may uncover undiscovered and cryptic species in the region.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2022)
Article
Environmental Sciences
Florentine Riquet, Mathilde Horaud, Vaimiti Dubousquet, Josina Tiavouane, Carmela Lopes, Phila Raharivelomanana, Veronique Berteaux-Lecellier, Serge Planes, Daphne Grulois, Serge Andrefouet, Simon Van Wynsberge, Philippe Borsa, Gael Lecellier, Cecile Fauvelot
Summary: The giant clam Tridacna maxima in French Polynesia exhibits significant genetic structure due to limited dispersal abilities and long-term genetic isolation. Preserving the genetic diversity and structure is crucial for transfer and restocking programs.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2023)
Article
Fisheries
Ann Bucklin, Jennifer M. Questel, Leocadio Blanco-Bercial, Alexandra Frenzel, Sara B. Smolenack, Peter H. Wiebe
Summary: The Stylocheiron genus includes species with global distributions but low genetic diversity. Despite circumglobal distributions, genetic divergence is present indicating the importance of selection in driving population differentiation.
ICES JOURNAL OF MARINE SCIENCE
(2021)
Article
Evolutionary Biology
Xiao-Tian Tang, Ming-Xing Lu, Yu-Zhou Du
Summary: By investigating the genetic diversity, population genetic structure, and demographic history of the pink rice borer (PRB), this study revealed two large phylogeographic clusters and identified microrefugia in the Sichuan Basin and Yunnan-Guizhou Plateau.
SYSTEMATIC ENTOMOLOGY
(2022)
Article
Ecology
Maha Moussa, Sarra Choulak, Soumaya Rhouma-Chatti, Noureddine Chatti, Khaled Said
Summary: This study investigated the genetic differentiation and phylogeography of the Chondrosia reniformis sponge populations in Tunisia. The results showed that these populations may have experienced a bottleneck and rapid demographic expansion, leading to high genetic differentiation among different localities. The geographic origin played a significant role in the distribution of the sponge populations, with the Siculo-Tunisian Strait acting as a biogeographic barrier. The findings contribute to a better understanding of the population evolution and environmental adaptation of this sponge species.
ECOLOGY AND EVOLUTION
(2022)
Article
Plant Sciences
Mi Yeon Yang, Daisuke Fujita, Myung Sook Kim
Summary: The current genetic structure of Gloiopeltis furcata sensu lato in Korea and Japan reveals various lineages with different phylogeographic patterns. Populations in the southern regions show the highest genetic diversity and unique endemism, indicating the existence of a southern refugia and recent migration. These findings suggest significant influence of current circulation patterns and anthropogenic effects on the distribution of this species in the Northwest Pacific.
Article
Ornithology
Mackenzie R. Roeder, Christopher E. Hill, Chris S. Elphick, Meaghan Conway, Alison R. Kocek, Amy Tegeler, Stefan Woltmann
Summary: Seaside Sparrows, endemic to the tidal salt marshes along the Atlantic and Gulf coasts of North America, are facing population declines and habitat loss, potentially requiring separate management plans. Genetic analysis revealed three genetically distinct population segments among the Atlantic coast populations, indicating discordance with the described ranges of the subspecies.
ORNITHOLOGICAL APPLICATIONS
(2021)
Article
Agriculture, Dairy & Animal Science
Trinidad Perez, Andrea Romero-Bascones, Negin Pirhadi, Ruth Coya, Maria del Pino Fernandez-Rueda, Isabel Marquez, Lucia Garcia-Florez, Yaisel J. Borrell
Summary: The artisanal octopus fishery is a traditional industry in Northern Spain that has a significant economic impact. This study investigates the genetic patterns of octopus populations using mitochondrial DNA analysis. The results reveal two main lineages with distinct distributions, and temporal changes in their distribution are linked to oceanographic conditions. These findings provide valuable information for understanding the uniqueness of the exploited population and the impact of exploitation on its long-term survival.
Article
Biochemistry & Molecular Biology
Lauric Reynes, Thierry Thibaut, Stephane Mauger, Aurelie Blanfune, Florian Holon, Corinne Cruaud, Arnaud Couloux, Myriam Valero, Didier Aurelle
Summary: The study identified genomic signatures of partial clonality in the deep water kelp species Laminaria rodriguezii and compared them with a closely related species Laminaria digitata. The findings showed distinct genetic distributions and different impacts of clonality and genetic drift on population diversity. These results provide insights into the genetic study of asexuality in natural populations and highlight potential applications of RAD-sequencing in investigating partial clonality in various non-model species.
Article
Environmental Sciences
Lauric Reynes, Didier Aurelle, Cristele Chevalier, Christel Pinazo, Myriam Valero, Stephane Mauger, Stephane Sartoretto, Aurelie Blanfune, Sandrine Ruitton, Charles-Francois Boudouresque, Marc Verlaque, Thierry Thibaut
Summary: Oceanic connectivity was found to be the primary predictor of genetic structure, while genetic differentiation in selective gene markers was linked to population depth, as indicated by minimum seawater temperature. Further research is needed to fully understand the role of depth in driving adaptive genetic differentiation in E. zosteroides.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Biotechnology & Applied Microbiology
Fabio Nauer, Fabiana Marchi, Matheus Naves, Estela Maria Plastino, Mariana Cabral Oliveira
Summary: Taxonomic studies based on molecular markers led to the description of a new species, Hypnea pseudomusciformis, which accommodates three morphologically divergent species with identical DNA barcode sequences found on the coast of Brazil. Further phylogeographic studies showed that H. pseudomusciformis is divided into three distinct haplotype groups related to different floristic provinces along the Brazilian coast.
JOURNAL OF APPLIED PHYCOLOGY
(2022)
Article
Marine & Freshwater Biology
Fabio Nauer, Mariana Cabral Oliveira, Estela Maria Plastino, Nair Sumie Yokoya, Mutue Toyota Fujii
Summary: The effects of temperature on physiological processes in Hypnea pseudomusciformis were studied. Different ecotypes displayed decreased physiological performance at 32 degrees C. The wide thermal optimum of this species may explain its widespread distribution along the Brazilian coast.
PHYCOLOGICAL RESEARCH
(2022)
Article
Biotechnology & Applied Microbiology
Andre V. F. Faria, Estela M. Plastino
Summary: This study investigated the effects of different temperatures on the growth rates, photosynthetic parameters, and pigment contents of Gracilariopsis tenuifrons, a red algae species widely distributed along the Brazilian coast. The results showed that different populations had varied tolerance to temperature, with northeastern populations being more vulnerable to climate change.
JOURNAL OF APPLIED PHYCOLOGY
(2022)
Article
Environmental Sciences
Fabio Nauer, Mariana Cabral Oliveira, Estela Maria Plastino, Nair S. Yokoya, Mutue Toyota Fujii
Summary: The frequency and intensity of marine heatwaves are increasing globally, impacting marine ecosystems. This study evaluated the response of H. pseudomusciformis populations on the Brazilian coast to simulated heatwaves. The results showed different tolerance and physiological responses of the populations, with tropical and transition specimens being at risk of extinction.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Multidisciplinary Sciences
E. Lavaut, M-L Guillemin, S. Colin, A. Faure, J. Coudret, C. Destombe, M. Valero
Summary: Recent studies have contradicted the long-held belief that animal-mediated pollination is absent in the sea, particularly in seagrasses, sparking interest in investigating other marine phyla. This study discovers that biotic interactions can significantly increase the fertilization success of red algae through animal transport of spermatia, suggesting that animal-mediated fertilization may have evolved independently in terrestrial and marine environments and could have emerged in the sea before plants moved ashore.
Article
Environmental Sciences
Ronan Becheler, Daniela Haverbeck, Corentin Clerc, Gabriel Montecinos, Myriam Valero, Andres Mansilla, Sylvain Faugeron
Summary: This study aimed to test the local adaptation in giant kelp and found that there are variations in temperature tolerance among different regions and populations. However, high latitude populations are not always more heat resilient than low latitude populations. Additionally, the gametophytes of the giant kelp have a large range of temperature tolerance, indicating their resistance.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Oscar R. Huanel, Suany Quesada-Calderon, Cristian Rios Molina, Sarai Morales-Gonzalez, Pablo Saenz-Agudelo, Wendy A. Nelson, Natalia Arakaki, Stephane Mauger, Sylvain Faugeron, Marie-Laure Guillemin
Summary: This study used SNP to assess the genetic structure of Gracilaria chilensis in Chile and found that the low genetic diversity may be associated with over-exploitation and colonization history. The Quaternary glacial cycles had important effects on the species in New Zealand. A recent genetic bottleneck was observed in Chile, presenting challenges for genetic resource management in this incipiently domesticated species.
Article
Plant Sciences
Andre V. F. Faria, Nuno T. Martins, Ligia M. Ayres-Ostrock, Carlos F. D. Gurgel, Estela M. Plastino
Summary: This study investigated the population genetic diversity and structure of Gracilariopsis tenuifrons in Brazil, revealing a significant genetic separation between the northeast and southeast regions, which are located near the Vitoria-Trindade seamount chain, suggesting it as the main biogeographical barrier to gene flow.
JOURNAL OF PHYCOLOGY
(2023)
Review
Plant Sciences
Michael Borg, Stacy A. Krueger-Hadfield, Christophe Destombe, Jonas Collen, Agnieszka Lipinska, Susana M. Coelho
Summary: Rhodophyta (or red algae) are a diverse group with small intron-poor genomes, a lack of motility-related cytoskeletal structures, and a highly efficient photosynthetic capacity. Despite their ecological, evolutionary, and commercial importance, red macroalgae have been understudied. With the increasing availability of red algal genome sequences, this overview anticipates that research in various domains of red algal biology will be accelerated in the future.
Article
Biology
E. Lavaut, M. Valero, S. Mauger, M. L. Guillemin, C. Destombe, M. Dufay
Summary: This study shows that sexual selection occurs in the red seaweed Gracilaria gracilis, with males exhibiting greater variance in mating success and a stronger relationship between reproductive success and mating success compared to females. This provides evidence for Bateman's principles in a seaweed species.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Marine & Freshwater Biology
Thomas Broquet, Christophe Destombe, Myriam Valero, Didier Jollivet
Summary: The Station Biologique de Roscoff is celebrating its 150th anniversary, providing an opportunity to reflect on the research done at the station, with a focus on the origin of species. Various research projects have addressed questions related to the evolution of reproductive isolation and the mechanisms that give rise to new species. The station has made significant contributions to French evolutionary biology, particularly in the study of marine algae and invertebrates.
CAHIERS DE BIOLOGIE MARINE
(2023)