A comparative genome study of earthworms and their marine relatives could challenge Darwin’s theory of evolution by showing that worms colonized land in evolutionary jumps. […]
The team has shown that marine annelids (worms) reorganised their genome from top to bottom, leaving it unrecognisable, when they left the oceans. Their observations are consistent with a punctuated equilibrium model, and could indicate that not only gradual but sudden changes in the genome could have occurred as these animals adapted to terrestrial settings. The genetic mechanism identified could transform our concept of animal evolution and revolutionise the established laws of genome evolution.
The paper is here.
