BACKGROUND AND AIMS The phylogenetic relationships between species of Coffea and Psilanthus remain poorly understood, owing to low levels of sequence variation recovered in previous studies, coupled with relatively limited species sampling. In this study, the relationships between Coffea and Psilanthus species are assessed based on substantially increased molecular sequence data and greatly imp...

Abstract The aim of DNA barcoding is to enable fast and accurate species identification. However, universal plant barcodes often do not provide species-level discrimination, especially in taxonomically complex groups. Here we use Lauraceae for the design evaluation strategies, considering: (1) efficacy taxon-specific barcode regions compared with discrimination; (2) how extent intra- interspeci...

Eranthis Salisb. (Ranunculaceae) is a herbaceous plant genus, including few species disjunctively distributed throughout the temperate zone from Southeastern Europe to Eastern Asia. Until recently, only sibirica DC. was known in South Siberia, being considered endemic and tertiary relict. Not long ago, tanhoensis Erst also described Siberia. We report here reconstruction of phylogenetic relatio...

Seventy-four nucleotide sequences from the ITS regions of nuclear ribosomal DNA and 76 from the trnL-trnF spacer of chloroplast DNA were used to address the origin of tetraploid Cardamine amporitana, the conspecifity of central Italian and northeastern Spanish populations, and the possible cause for such geographic disjunction. Because of the complex lineage relationships in Cardamine, the samp...