Genetic features of bivalve transmissible neoplasia in blue mussels from the Kola Bay (Barents Sea) suggest a recent trans-Arctic migration of the cancer lineages.

Ecology and biogeography of bivalve transmissible neoplasia (BTN) are underexplored due to its recent discovery and a challenging diagnostics. Blue mussels harbour two evolutionary lineages of BTN, MtrBTN1 and MtrBTN2, both derived from Mytilus trossulus. MtrBTN1 has been found only in M.

Two lineages of bivalve transmissible neoplasia affect the blue mussel Gould in the subarctic Sea of Okhotsk.

There are increasing findings of the bivalve transmissible neoplasia derived from the Pacific mussel (BTN) in populations of different species worldwide. The Subarctic is an area where this disease has not yet been sought despite the fact that spp. are widespread there, and itself is a boreal species.

Quinoid Pigments of Sea Urchins and : Biological Activity and Potential Applications.

This review presents literature data: the history of the discovery of quinoid compounds, their biosynthesis and biological activity. Special attention is paid to the description of the quinoid pigments of the sea urchins (from the family ) and (from the family ). The marine environment is considered one of the most important sources of natural bioactive compounds with extremely rich biodiversity.

First description of a widespread Mytilus trossulus-derived bivalve transmissible cancer lineage in M. trossulus itself.

Two lineages of bivalve transmissible neoplasia (BTN), BTN1 and BTN2, are known in blue mussels Mytilus. Both lineages derive from the Pacific mussel M. trossulus and are identified primarily by their unique genotypes of the nuclear gene EF1α.

The effects of cold stress on Mytilus species in the natural environment.

Environmental stressors induce changes in marine mussels from molecular (e.g., neurotransmitter and chaperone concentration, and expression of immune- and heat-shock protein-related genes) to physiological (e.