One of the latter, Daphnia pulex, is the first crustacean to have its genome sequenced. A researcher from the University of Gothenburg has made a surprising discovery.
The sequencing has been done in an international research network known as the Daphnia Genomics Consortium. The Swedish contribution – the discovery that the genome of Daphnia contains neurotrophins – surprisingly shows that the nervous system of crustaceans is more complex than previously believed.
“In mammals, neurotrophins play a role in learning, memory and development of the nervous system. For a long time researchers considered neurotrophins and their receptors to be characteristic of vertebrates, but that is not the case,” says Karen Wilson at the Department of Marine Ecology, University of Gothenburg, who is a member of the consortium.
The neurotrophins and their receptors in mammals are known to be sensitive to oxygen deficiency, environmental degradation and toxins. This may mean that the neurotrophins in crustacea are equally exposed.
“This is an important finding, as climate change, acidification and pollution may affect behaviour in crustaceans in both freshwater and marine environments.”
Daphnia pulex is a crustacean species half a centimetre in size found in several parts of the world. In Sweden it lives both in lakes, ponds and coastal waters.
Crustaceans represent a highly variable group of animals found in both freshwater and marine environments. Because of their diversity and worldwide distribution, they play an important ecological role. They are also of great economic significance. Some crustacean species are directly consumed by humans (prawns, crayfish, lobster), while others serve as an indirect source of food when crustaceans in the larval stage are eaten by others. Other crustaceans are the cause of costs, such as the salmon louse, a fish parasite that attacks salmonids, and the barnacle, which causes fouling of man-made structures in the sea.
The article The Ecoresponsive Genome of Daphnia pulex is a compilation of the combined sequencing of Daphnia pulex genes based on the results obtained in the Daphnia Genomics Consortium. The article has been published in the scientific journal Science.Contact:
Helena Aaberg | idw
Nonstop Tranport of Cargo in Nanomachines
20.11.2018 | Max-Planck-Institut für molekulare Zellbiologie und Genetik
Researchers find social cultures in chimpanzees
20.11.2018 | Universität Leipzig
Max Planck researchers revel the nano-structure of molecular trains and the reason for smooth transport in cellular antennas.
Moving around, sensing the extracellular environment, and signaling to other cells are important for a cell to function properly. Responsible for those tasks...
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
19.11.2018 | Event News
09.11.2018 | Event News
06.11.2018 | Event News
20.11.2018 | Life Sciences
20.11.2018 | Life Sciences
20.11.2018 | Physics and Astronomy