European eels: One gene pool fits all

European eels spawn in the subtropical Sargasso Sea but spend most of their adult life in a range of fresh- and brackish waters, across Europe and Northern Africa. How eels adapt to such diverse environments has long puzzled ...

Antibiotic resistance from random DNA sequences

An important and still unanswered question is how new genes that cause antibiotic resistance arise. In a new study, Swedish and American researchers have shown how new genes that produce resistance can arise from completely ...

Rare species of small cats inadequately protected

The Indian subcontinent is a hotspot for wild felines. A new study headed by Uppsala University now shows that only 6–11 per cent of the areas where three rare cat species have their habitat are protected. Lack of knowledge ...

Chronic stress causes genetic changes in chickens

How can stress in animals be measured? Scientists from Uppsala University and elsewhere have now found that what are known as epigenetic biomarkers could be used to detect long-term exposure to stress in commercially raised ...

Swedish, Finnish and Russian wolves closely related

The Scandinavian wolf originally came from Finland and Russia, and unlike many other European wolf populations its genetic constitution is virtually free from dog admixture. In addition, individuals have migrated into and ...

Invisible fungi revealed by their genetic material

How can new life forms that we cannot see be discovered? Using a novel method based on looking for DNA in soil samples, researchers at Uppsala University have revealed the existence of two hitherto unknown, but very common ...

AI methods of analysing social networks find new cell types in tissue

In situ sequencing enables gene activity inside body tissues to be depicted in microscope images. To facilitate interpretation of the vast quantities of information generated, Uppsala University researchers have now developed ...

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