The importance of preadapted genomes in the origin of the animal bodyplans and the Cambrian explosion.

@article{Marshall2010TheIO,
  title={The importance of preadapted genomes in the origin of the animal bodyplans and the Cambrian explosion.},
  author={Charles R. Marshall and James W. Valentine},
  journal={Evolution; international journal of organic evolution},
  year={2010},
  volume={64 5},
  pages={1189-201}
}
The genomes of taxa whose stem lineages branched early in metazoan history, and of allied protistan groups, provide a tantalizing outline of the morphological and genomic changes that accompanied the origin and early diversifications of animals. Genome comparisons show that the early clades increasingly contain genes that mediate development of complex features only seen in later metazoan branches. Peak additions of protein-coding regulatory genes occurred deep in the metazoan tree, evidently… CONTINUE READING