Towards a complete generic‐level plastid phylogeny of the paleotropical woody bamboos (Poaceae: Bambusoideae)

• DOI: 10.12705/663.2
• Publication Date: 2017-06-29T03:09:23Z
• Authors: Meng-Yuan Zhou; Yu-Xiao Zhang; Thomas Haevermans; De-Zhu Li
• Keywords: Character evolution; Lineage (genetic)

Abstract Paleotropical woody bamboos (PWB) are phylogenetically and taxonomically intractable. Because previous studies included deficient samples or lacked informative characters for tree construction, phylogenetic relationships within the PWB remain incompletely resolved. This study presents most extensively sampled phylogeny of with 18 plastid regions a sample 144 (35%) ingroup species representing 40 (85%) genera 8 outgroup species. Results confirmed Melocanninae as earliest diverging lineage from rest group, Hickeliinae (including Nastus s.str.) Racemobambosinae separately placed PWB. Bambusinae is heterogeneous consists Dinochloa-Greslania-Mullerochloa-Neololeba-Sphaeroambos (DGMNS) assemblage, Temburongia simplex, core Bambusinae. The may be redefined to include basal grade, which contains Kinabaluchloa, Holttumochloa, Bonia, Neomicrocalamus, Temochloa, Soejatmia an unidentified taxon, Bambusa-Dendrocalamus-Gigantochloa (BDG) complex. BDG complex extremely diverse in morphology subdivided into six subclades. Within Melocanninae, Davidsea, Neohouzeaua Ochlandra closely related Schizostachyum. Phylogenetic mostly supported by morphological geographical evidence. In addition, novel interpretations provided redelimitation some taxa.