The Amphimedon queenslandica genome and the evolution of animal complexity
Sponges are an ancient group of animals that diverged from other metazoans over 600 million years ago. Here we present the draft genome sequence of Amphimedon queenslandica, a demosponge from the Great Barrier Reef, and show that it is remarkably similar to other animal genomes in content, structure and organization. Comparative analysis enabled by the sponge sequence reveals genomic events linked to the origin and early evolution of animals, including the appearance, expansion, and diversification of pan-metazoan transcription factor, signaling pathway, and structural genes. This diverse 'toolkit' of genes correlates with critical aspects of all metazoan body plans, and comprises cell cycle control and growth, development, somatic and germ cell specification, cell adhesion, innate immunity, and allorecognition. Notably, many of the genes associated with the emergence of animals are also implicated in cancer, which arises from defects in basic processes associated with metazoan multicellularity.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- Genomics Division
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 1004157
- Report Number(s):
- LBNL-3735E; ISSN 1476--4687; TRN: US201103%%377
- Journal Information:
- Nature, Vol. 466, Issue 7307; ISSN 0028--0836
- Country of Publication:
- United States
- Language:
- English
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