Phylogeny of the unicornfishes (Naso, Acanthuridae) based on soft anatomy
Borden, W.C. (1998). Phylogeny of the unicornfishes (Naso, Acanthuridae) based on soft anatomy. Copeia 1998(1): 104-113
In: Copeia. American Society of Ichthyologists and Herpetologists: New York, N.Y., etc.. ISSN 0045-8511; e-ISSN 1938-5110, more
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| Abstract |
This study presents the first phylogenetic hypothesis of unicornfishes relationships (Naso, Acanthuridae). Phylogenetic analysis of 13 characters and 15 ingroup taxa, yielded 14 trees of 26 steps and a consistency index (CI) of 0.846. However, the preferred tree is derived from exclusion of one character and results in one tree of 21 steps and a CI of 0.905. These results suggest that one-plated unicornfishes and zooplanktivorous unicornfishes form monophyletic groups, but horned uni- cornfishes do not. The four herbivorous unicornfishes are basally located, suggest- ing zooplanktivory arose once in Naso and is a derived, diet condition. Although myology at the species level is highly conservative and resulted in few phylogenetically informative characters, these characters are highly corroborative. |
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