Surfing with the tunicates into the post-genome era

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Abstract
This year is the centenary of Edward G. Conklin's signal findings in embryology: the elucidation of complete cell lineages and the discovery of localized maternal determinants. Conklin used ascidian embryos to elucidate universal principles in embryology. A century later, ascidians, or sea squirts, have not only entered the post-genome era, but in many ways are leading the way to the promise of a “systems-level” understanding of complex processes such as notochord formation, neurogenesis, and even behavior.