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

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 ...

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

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 ...

A new study in mice documents frequent undesirable repeats of DNA insertions that are not detected using ... a team of researchers now reports a high frequency of unwanted duplications while ...

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 ...