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- Title
Molecular support of the classification of Greeniopsis Merr. in Aleisanthieae (Rubiaceae), with a revision of the genus.
- Authors
Alejandro, Crecebio Jonathan D.; Meve, Ulrich; Uy, Millard; Mouly, Arnaud; Thiv, Mike; Liede-Schumann, Sigrid
- Abstract
Greeniopsis Merr. isa small genus of Rubiaceae endemk to the Philippines. Previously, no molecular data have been available for Greeniopsis and its taxonornic position has remained controversial. Based on morphology, the genus was tentatively included in the tribe Aleisanthieae (lxoroideae) along with the Southeast Asian genera Aleisanthia and Aleisanthiopsis. To determinF the taxonomic position of Greeniopsis and evaluate the monophyly of the genus, sequences of the rps/6 and trnT-F regions orcpDNA of all seven Greeniopsis species were generated. Parsimony and Bayesian analyses of the combined plastid dataset strongly support the inclusion of Greeniopsis in Aleisanthieae as well as its monophyly. Woolly hairs on the abaxial leaf surfitce occur in only one Greeniopsis species and can no longer be regarded a synapomorphy of the tribe. The generic status of Aleisanthia, Aleisanthiopsis, and Greeniopsis is maintained. A revision of Greeniopsis, including a key to species, descriptions, distribution maps, and illustrations, is provided.
- Subjects
PHILIPPINES; PLANT molecular systematics; RUBIACEAE; PLANT morphology; PARSIMONIOUS models; BAYESIAN analysis; PLASTIDS
- Publication
Taxon, 2010, Vol 59, Issue 5, p1547
- ISSN
0040-0262
- Publication type
Article