A star is born

Stephen R. Palumbi ()
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Stephen R. Palumbi: Harvard University

Nature, 1997, vol. 390, issue 6660, 556-557

Abstract: Different species of a genus of starfish found on Australia's temperate east coast vary widely in their mode of reproduction. Some produce tiny eggs that develop into free-swimming larvae before becoming tiny, bottom-dwelling starfish; others have larger eggs that develop directly into starfish. Some have brood care; others cast their eggs into the sea. A study of some of these starfish, and members of a closely related genus, involved constructing a phylogeny based on mitochondrial DNA sequences, and tracing on it the different reproductive modes. The upshot gives a snapshot of how development is moulded by evolution, in the form of a kind of Hertzsprung-Russell diagram for biological stars.

Date: 1997
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DOI: 10.1038/37483

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