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Genetic background and embryonic temperature affect DNA methylation and expression of myogenin and muscle development in Atlantic salmon (Salmo salar)

their assistance during sampling. 11 / 15 Author Contributions Conceptualization: Erik Burgerhout, Nina Santi, Øivind Andersen. Data curation: Erik Burgerhout, Maren Mommens, Arnfinn Aunsmo. Formal ... analysis: Erik Burgerhout, Maren Mommens, Hanne Johnsen, Arnfinn Aunsmo. Funding acquisition: Nina Santi, Øivind Andersen. Investigation: Erik Burgerhout, Maren Mommens, Hanne Johnsen. Methodology: Erik

The Effect of Drag and Attachment Site of External Tags on Swimming Eels: Experimental Quantification and Evaluation Tool

, decision to publish, or preparation of the manuscript. Co-authors Erik Burgerhout, Sebastiaan Brittijn and Guido van den Thillart are employed by NewCatch B.V. NewCatch B.V. provided support in the form of ... these authors are articulated in the author contributions section. Competing Interests: Erik Burgerhout, Sebastiaan Brittijn and Guido van den Thillart are employed by NewCatch B.V. There are no patents

Dramatic effect of pop-up satellite tags on eel swimming

The journey of the European eel to the spawning area in the Sargasso Sea is still a mystery. Several trials have been carried out to follow migrating eels with pop-up satellite tags (PSATs), without much success. As eels are very efficient swimmers, tags likely interfere with their high swimming efficiency. Here we report a more than twofold increase in swimming cost caused by a...

The Pituitary Gland of the European Eel Reveals Massive Expression of Genes Involved in the Melanocortin System

Hormones secreted from the pituitary gland regulate important processes such as development, growth and metabolism, reproduction, water balance, and body pigmentation. Synthesis and secretion of pituitary hormones are regulated by different factors from the hypothalamus, but also through feedback mechanisms from peripheral organs, and from the pituitary itself. In the European...

Deep RNA Sequencing of the Skeletal Muscle Transcriptome in Swimming Fish

Deep RNA sequencing (RNA-seq) was performed to provide an in-depth view of the transcriptome of red and white skeletal muscle of exercised and non-exercised rainbow trout (Oncorhynchus mykiss) with the specific objective to identify expressed genes and quantify the transcriptomic effects of swimming-induced exercise. Pubertal autumn-spawning seawater-raised female rainbow trout...

First artificial hybrid of the eel species Anguilla australis and Anguilla anguilla

Background Studies on artificial hybridization of different Anguilla species were conducted recently, i.e. female A. australis with male A. dieffenbachii, and female A. japonica with male A. anguilla. The existence of these artificial hybrids was however not demonstrated by independent genetic methods. Two species - A. anguilla and A. australis - that are phylogenetically close...

Establishing Zebrafish as a Novel Exercise Model: Swimming Economy, Swimming-Enhanced Growth and Muscle Growth Marker Gene Expression

Background Zebrafish has been largely accepted as a vertebrate multidisciplinary model but its usefulness as a model for exercise physiology has been hampered by the scarce knowledge on its swimming economy, optimal swimming speeds and cost of transport. Therefore, we have performed individual and group-wise swimming experiments to quantify swimming economy and to demonstrate the...

Primitive Duplicate Hox Clusters in the European Eel's Genome

The enigmatic life cycle and elongated body of the European eel (Anguilla anguilla L., 1758) have long motivated scientific enquiry. Recently, eel research has gained in urgency, as the population has dwindled to the point of critical endangerment. We have assembled a draft genome in order to facilitate advances in all provinces of eel biology. Here, we use the genome to...