How genetic islands form among marine molluscs

Usually, the individuals of a population of marine species that have the potential to disperse over long distances all share a similar genetic composition. Yet every now and then, at small, localized sites, small groups of genetically different individuals suddenly appear within populations for a short period of time. A new study explains how this chaotic formation of genetic islands can occur in marine molluscs. Scientists from Bielefeld University and the British Antarctic Survey collaborated on the research. Their study has appeared in Science Advances.

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