The Pacific species of the polyphyletic genus Schefflera belong to three main clades, of which the Melanesian Schefflera clade is best represented in the archipelagos of New Caledonia, Fiji, Vanuatu, and the Solomon Islands. Previous studies have helped to establish the monophyly of Melanesian Schefflera, but an informal, morphology-based classification system that recognizes five subgeneric groupings within this clade remains largely untested. To examine relationships among Melanesian Scheffleras, DNA sequence data from two spacer regions (ITS and ETS) of the nuclear rRNA genes were gathered from a nearly comprehensive sample of species and analyzed phylogenetically. Results confirm the monophyly of four of the five informal groupings, including ‘Plerandra’ (from Fiji, Vanuatu, Solomon Islands, and New Guinea), ‘Gabriellae’ (from New Caledonia, Fiji, and Vanuatu), ‘Canacoschefflera’ (New Caledonia), and ‘Dictyophlebes’ (Fiji and Solomon Islands). However, rDNA data do not agree with morphology in regard to the fifth group, ‘Dizygotheca,’ which appears polyphyletic in the cladograms based on ITS and ETS sequences.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.