A recent paper provides an updated perspective on the evolutionary history of chelicerates—a diverse and ecologically ...

Losing Opens Up New Possibilities for Subsequent Gains Evolution is traditionally associated with increasing complexity and ...

As with duplications, deletions can affect gene dosage and thus the resulting phenotype. Also, the larger the deletion, the more genes are likely to be involved, and the more drastic the resulting ...

and duplications. Sometimes, a copy number variant may even be so large that half a million nucleotides are affected. By using DNA microarrays, scientists are now screening patients with genetic ...

Using the “less, but more” model, a study by the University of Barcelona identifies how massive gene losses followed by extensive gene duplications can generate evolutionary adaptations in species.

Evolution is traditionally associated with increasing complexity and gaining new genes, but gene loss and simplification also ...

Large and rare duplications and deletions in a chromosome region known as 22q11.2 , which involves genes that regulate cardiac development, are linked to nonsyndromic bicuspid aortic valve disease ...

From sessile life to active swimming The study provides a new perspective on the evolution of FGF subfamilies in the chordate group, with massive losses and duplications of ancestral gene families ...