@ARTICLE{TreeBASE2Ref18152, author = {Nerida G. Wilson and M. S. Y. Lee}, title = {Molecular phylogeny of Chromodoris (Mollusca, Nudibranchia) and the identification of a planar spawning clade}, year = {2005}, keywords = {}, doi = {}, url = {}, pmid = {}, journal = {Molecular Phylogenetics and Evolution}, volume = {}, number = {}, pages = {}, abstract = {High levels of convergent evolution have often made it difficult to infer the evolutionary history of highly-derived opisthobranch molluscs. Here, the phylogeny of the nudibranch genus Chromodoris is reconstructed based on partial 16S rRNA, and reveals three major clades. Two southern temperate taxa (Chromodoris ambiguus and C. alternata) group with Cadlina species, rendering Chromodoris paraphyletic. The remaining two Chromodoris clades appear to be diagnosable on the basis of egg mass structure; one group lays planar spiral egg masses and the other lays upright spiral egg masses. There is strong geographic structure in the tree, suggesting that shared colour patterns in sympatric Chromodoris species might be the result of phylogenetic conservatism rather than mimicry.} }

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