A5005189798- Reproductive biology and impacts on aquatic species
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Aquaculture Nutrition and Growth
- Animal Genetics and Reproduction
- Epigenetics and DNA Methylation
- Fish Ecology and Management Studies
- Fish Biology and Ecology Studies
- Birth, Development, and Health
- Genetic and phenotypic traits in livestock
- Aquaculture disease management and microbiota
- Genetic diversity and population structure
- Marine and fisheries research
- Environmental Science and Water Management
- MicroRNA in disease regulation
- Demographic Trends and Gender Preferences
- Hypothalamic control of reproductive hormones
- Sex and Gender in Healthcare
- Gene expression and cancer classification
- Physiological and biochemical adaptations
- Sperm and Testicular Function
- Marine Bivalve and Aquaculture Studies
- Animal Behavior and Reproduction
- Cancer-related gene regulation
- Sexual Differentiation and Disorders
- Zebrafish Biomedical Research Applications
Institut de Ciències del Mar
2016-2025
Institut Català de Ciències del Clima
2015-2024
Consejo Superior de Investigaciones Científicas
2015-2024
Government of Catalonia
2019
Marine Biodiversity Exploitation and Conservation
2018
Centro Mediterráneo de Investigaciones Marinas y Ambientale
2003-2007
Instituto de Acuicultura Torre de la Sal
1994-2002
University of California, San Diego
1993-1997
Boston University
1993-1995
Fisheries and Oceans Canada
1989-1994
Background In gonochoristic vertebrates, sex determination mechanisms can be classified as genotypic (GSD) or temperature-dependent (TSD). Some cases of TSD in fish have been questioned, but the prevalent view is that very common this group animals, with three different response patterns to temperature. Methodology/Principal Findings We analyzed field and laboratory data for 59 species where has explicitly implicitly claimed so far. For each species, we compiled on presence absence...
Sex ratio shifts in response to temperature are common fish and reptiles. However, the mechanism linking during early development sex ratios has remained elusive. We show European sea bass (sb), a which effects on maximal before gonads form, that juvenile males have double DNA methylation levels of females promoter gonadal aromatase (cyp19a), enzyme converts androgens into estrogens. Exposure high increased cyp19a females, indicating induced-masculinization involves methylation-mediated...
The European sea bass (Dicentrarchus labrax) is a temperate-zone euryhaline teleost of prime importance for aquaculture and fisheries. This species subdivided into two naturally hybridizing lineages, one inhabiting the north-eastern Atlantic Ocean other Mediterranean Black seas. Here we provide high-quality chromosome-scale assembly its genome that shows high degree synteny with more highly derived teleosts. We find expansions gene families specifically associated ion water regulation,...
DNA methylation is one of the main epigenetic mechanisms for regulation gene expression in eukaryotes. In standard model, promoters has received most attention since it generally associated with transcriptional silencing. Nevertheless, recent studies human tissues reveal that region downstream transcription start site highly informative expression. Also, some cell types and specific genes been found first intron, a feature typically rich enhancers, linked However, genome-wide,...
Abstract Although many studies implicate sex steroids in the process of sexual differentiation, exact role played by these substances lower vertebrates, especially teleost fish, is not clear, since it conclusively known whether are cause or an early consequence differentiation. By hormonal manipulation and specific crossings, possible to produce all‐female stocks otherwise gonochoristic chinook salmon (Oncorhynchus tshawytscha). These excellent model study effects on differentiation genetic...
Many species of fish produced in aquaculture or for the ornamental trade exhibit sexual dimorphism growth, age at maturity, secondary characters, other traits interest. This has led to a desire produce populations only one sex commercial ongrowing. Although direct reversal via manipulation differentiation is used commercially (e.g., tilapia aquaculture), most cases there need understand determination system some extent and manipulate this monosex fish. Sex genetic environmental process that...
The combined result of the mechanisms sex determination and differentiation is ratio a population. Because sex-related growth dimorphism in fish quite common, ratios influence population reproductive capacity contribute to size variation patterns before after sexual maturation. This may have practical consequences for aquaculture explains interest control favor with superior growth, better food conversion efficiency, later maturation, or prevent reproduction if both sexes mature harvest....
Abstract The zebrafish ( D anio rerio ) is a freshwater teleost of the family C yprinidae that established as model organism in many research fields. Here, we define characteristics fish species should have to serve for finfish aquaculture and argue fulfils essentially most them. We first describe several aspects biology including phylogenetic relationships, development growth reproduction, both wild under laboratory conditions. Next, review work already carried out related different...
Significance Fish exhibit remarkable sexual plasticity. However, the underlying mechanism of heat-induced sex reversal is still unclear. Here we first established conditions for reprogramming phenotypes in zebrafish through ratio analysis and gonad transcriptomics. Sex response to heat was family-specific resulted masculinization. We observed two gonadal transcriptomic profiles per adults, among them neomales and, strikingly, females with an ovary but a “male-like” transcriptome. The latter...
Abstract In natural fish populations, temperature increases can result in shifts important phenotypic traits. DNA methylation is an epigenetic mechanism mediating changes. However, whether of the magnitude predicted by latest global warming models affect unknown. Here, we exposed European sea bass to moderate different periods within first two months age. We show that even 2 °C larvae significantly changed and expression ecologically-relevant genes related methylation, stress response,...
Bacteria that inhabit the epithelium of animals’ digestive tract provide essential biochemical pathways for fermenting otherwise indigestible dietary fibers, leading to production short-chain fatty acids (SCFAs). Of major SCFAs, butyrate has received particular attention due its numerous positive effects on health intestinal and peripheral tissues. The mechanisms action this four-carbon chain organic acid are different; many these related potent regulatory effect gene expression since is a...
The zebrafish (Danio rerio) has become a well-established experimental model in many research fields but the loss of primary sex-determining region during process domestication renders laboratory strains susceptible to effects environmental factors on sex ratios. Further, an essential husbandry aspect - optimal rearing density avoid stress-induced masculinization is not known. We carried out two experiments: first focusing survival, growth and ratio by at different initial densities (9, 19,...
Domestication of wild animals induces a set phenotypic characteristics collectively known as the domestication syndrome. However, how this syndrome emerges is still not clear. Recently, neural crest cell deficit hypothesis proposed that it generated by mildly disrupted developmental program, but clear support lacking due to difficulties distinguishing pure effects from preexisting genetic differences between farmed and mammals birds. Here, we use fish model investigate role persistent...
Abstract Background Fishes are the one of most diverse groups animals with respect to their modes sex determination, providing unique models for uncovering evolutionary and molecular mechanisms underlying determination reversal. Here, we have investigated how is determined in a species both commercial ecological importance, Siamese fighting fish Betta splendens . Results We conducted association mapping on four two wild populations B. In three populations, master determining (MSD) locus was...
Abstract The Catalan Initiative for the Earth BioGenome Project (CBP) is an EBP-affiliated project network aimed at sequencing genome of >40 000 eukaryotic species estimated to live in Catalan-speaking territories (Catalan Linguistic Area, CLA). These represent a biodiversity hotspot. While covering less than 1% Europe, they are home about one fourth all known European species. include high proportion endemisms, many which threatened. This trend likely get worse as effects global...