Phylogenetic Analysis of Cestrum Section Habrothamnus (Solanaceae) Based on Plastid and Nuclear DNA Sequences
Abstract:Phylogenetic analysis of DNA sequences from chloroplast regions and nuclear ribosomal ITS was conducted to test the monophyly of Cestrum sect. Habrothamnus and investigate its relationships with other sections of Cestrum. Molecular divergence was very low among the sampled species, suggesting a rapid diversification in Cestrum. Individual and combined analyses of these molecular data sets using maximum parsimony and Bayesian inference reject the monophyly of the traditionally recognized sections of Cestrum, including sect. Habrothamnus. Infrageneric classifications will require significant revision. Nevertheless, the resolved monophyletic clades in this molecular analysis are geographically structured.
Document Type: Regular Paper
Publication date: October 1, 2006
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- Systematic Botany is the scientific journal of the American Society of Plant Taxonomists and publishes four issues per year.
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