Generic delimitations in tuberous Periplocoideae (Apocynaceae) from Africa and Madagascar.

ABSTRACT:

Background and aims

The number of genera included in Apocynaceae subfamily Periplocoideae is a matter of debate. DNA sequences are used here as an independent dataset to clarify generic relationships and classification of the tuberous periplocoid genera and to address the question of the phylogenetic interpretation of pollinia formation in Schlechterella.

Methods

Representatives of nearly all African and Malagasy genera of Periplocoideae possessing root tubers were analysed using ITS and plastid DNA sequence characters.

Results

Sequence data from non-coding molecular markers (ITS of nrDNA and the trnT-L and trnL-F spacers as well as the trnL intron of plastid DNA) give support for a broad taxonomic concept of Raphionacme including Pentagonanthus. Together with Schlech

SUBMITTER: Meve U 

PROVIDER: S-EPMC4242336 | biostudies-literature | 2004 Apr

REPOSITORIES: biostudies-literature