Aglaia (Meliaceae): an evaluation of taxonomic concepts based on DNA data and secondary metabolites.
TLDR
This study provides the first assessment of the current circumscription of Aglaieae, Aglaia, and its sections and to a more limited extent of species concepts in AgLAia.Abstract:
We performed maximum parsimony and Bayesian analyses (nuclear ITS rDNA, plastid rps16 intron) to estimate phylogenetic relationships within Aglaia (over 100 species in Southeast Asia, the Pacific, and Australia) and its relations among Aglaieae (Meliaceae). Based on 67 accessions of Aglaieae, three taxa of Guareae, and two taxa of Melieae (outgroup), this study provides the first assessment of the current circumscription of Aglaieae, Aglaia, and its sections and to a more limited extent of species concepts in Aglaia. DNA data are compared to recently collected data on chemical profiles. Our analyses indicate (1) the monophyly of Aglaieae; (2) the polyphyly of Aphanamixis; (3) the paraphyly of Aglaia; (4) the existence of at least three entities with respect to Aglaia: (a) the core group of Aglaia section Amoora (dehiscent fruits) with close relationships to Lansium and Reinwardtiodendron, (b) a group comprising morphological intermediates between the two sections, and (c) the core group of Aglaia section Aglaia (indehiscent fruits). Macro- and micromolecular data indicate that complex species are more heterogeneous, i.e., probably containing more than one taxon each, than taxonomically isolated species. A third section in Aglaia is recognized to accommodate A. lawii, A. teysmanniana, and A. beccarii.read more
Citations
More filters
Journal ArticleDOI
Plastid and nuclear DNA markers reveal intricate relationships at subfamilial and tribal levels in the soapberry family (Sapindaceae)
Sven Buerki,Félix Forest,Pedro Acevedo-Rodríguez,Martin W. Callmander,Johan A. A. Nylander,Mark G. Harrington,Isabel Sanmartín,Philippe Küpfer,Nadir Alvarez +8 more
TL;DR: A phylogenetic analysis of Sapindaceae based on eight DNA sequence regions from the plastid and nuclear genomes and including 85 of the 141 genera defined within the family confirms a high level of paraphyly and polyphyly at the subfamilial and tribal levels and even contest the monophyletic status of several genera.
Journal ArticleDOI
The Use of Phylogeny to Interpret Cross-Cultural Patterns in Plant Use and Guide Medicinal Plant Discovery: An Example from Pterocarpus (Leguminosae)
C. Haris Saslis-Lagoudakis,C. Haris Saslis-Lagoudakis,Bente B. Klitgaard,Félix Forest,Louise Francis,Vincent Savolainen,Vincent Savolainen,Elizabeth Williamson,Julie A. Hawkins +8 more
TL;DR: This community phylogenetic approach demonstrates that similar ethnobotanical uses can arise in parallel in different areas where related plants are available, and predicts that this field, after further refinement of the techniques, will expand into similar research areas, such as pest management or the search for bioactive plant-based compounds.
Journal ArticleDOI
Changing perspectives on the biogeography of the tropical South Pacific: influences of dispersal, vicariance and extinction
TL;DR: Malesia has long been considered the major source region for the biota of oceanic islands in the TSP because of shared taxa and high species diversity, but recent molecular studies have produced compelling support for New Caledonia and Australia as alternative important source areas.
Journal ArticleDOI
Evaluation of candidate DNA barcoding loci for economically important timber species of the mahogany family (Meliaceae).
TL;DR: Analysis of DNA barcoding with ITS alone revealed cryptic species and proved useful in identifying species listed in Convention on International Trade of Endangered Species appendixes and the combination of multiple loci did not improve performance.
Journal ArticleDOI
The origin and evolution of Indomalesian, Australasian and Pacific island biotas: insights from Aglaieae (Meliaceae, Sapindales)
TL;DR: A well‐resolved phylogenetic tree for the tribe Aglaieae in the mahogany family, Meliaceae, is presented and used to investigate the origin, evolution and dispersal history of biotas in this area.
References
More filters
Journal ArticleDOI
The CLUSTAL_X windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools.
TL;DR: ClUSTAL X is a new windows interface for the widely-used progressive multiple sequence alignment program CLUSTAL W, providing an integrated system for performing multiple sequence and profile alignments and analysing the results.
Journal ArticleDOI
MRBAYES: Bayesian inference of phylogenetic trees
TL;DR: The program MRBAYES performs Bayesian inference of phylogeny using a variant of Markov chain Monte Carlo, and an executable is available at http://brahms.rochester.edu/software.html.
Journal ArticleDOI
MODELTEST: testing the model of DNA substitution.
David Posada,Keith A. Crandall +1 more
TL;DR: The program MODELTEST uses log likelihood scores to establish the model of DNA evolution that best fits the data.