02386nas a2200289 4500008004100000245014000041210006900181300001000250490000700260520150600267653001301773653001701786653001401803653002701817653001701844653002601861653001901887653001101906653002801917653001401945653001301959100001801972700002101990700002002011700002002031856004502051 2001 eng d00aEvaluation of Relationships Within the Endemic Hawaiian Platynini (Coleoptera: Carabidae) Based on Molecular and Morphological Evidence0 aEvaluation of Relationships Within the Endemic Hawaiian Platynin a72-850 v213 a

Relationships among 69 species of Hawaiian Platynini, a monophyletic beetle radiation, was investigated based on evidence from five data partitions, comprising mitochondrial and nuclear DNA sequences (cytochrome oxidase II, 624 bp; cytochrome b, 783 bp; 28S rDNA, 668 bp; wingless; 441 bp) and morphology (206 features of external and internal anatomy). Results from individual and combined data analyses generally support the monophyly of three putative divisions within Platynini in Hawaii: Division 0 (Colpocaccus species group), Division 1 (Blackburnia species group), and Division 2 (Metromenus species group). However, relationships within and among these three divisions differ from previous morphological hypotheses. An extensive series of sensitivity analyses was performed to assess robustness of recovered clades under a variety of weighted parsimony conditions. Sensitivity analyses support the monophyly of Divisions 0 and 1, but were equivocal for the monophyly of Division 2. A phylogeny based on combined data suggests at least four independent losses/reductions of platynine flight wings. The combined analysis provides corroboration for biogeographic hypotheses, including (1) colonization of Kauai by Hawaiian Platynini with subsequent dispersal and colonization along the island chain from Oahu to Maui Nui to Hawaii Island and (2) incongruent area relationships among Eastern Molokai, West Maui, and Haleakala for two species triplets.

10a28S rDNA10aBiogeography10aCarabidae10acombined data analysis10acytochrome b10acytochrome oxidase II10aground beetles10aHawaii10amolecular phylogenetics10aPlatynini10awingless1 aCryan, J., R.1 aLiebherr, J., K.1 aFetzner, J., W.1 aWhiting, M., F. uhttp://dx.doi.org/10.1006/mpev.2001.0991