Phylogeny of Trachelomonas and Strombomonas (Euglenaceae) Based on Morphological and Molecular Data

The classification of Trachelomonas and Strombomonas is based on the morphology loricae, which may not reflect phylogenetic relationships. There are different views relationship between two genera. It thus important for researchers to classify genera more characteristics besides such as protoplast molecular data, establish a natural system. In this study, 29 strains (13 species) 12 (eight were collected from various locations in China. morphological observed field culture conditions, sequences nuclear SSU rDNA, LSU plastid-encoded rDNA obtained. We constructed tree by combining four gene with maximum likelihood Bayesian methods. Based development it was found that shape loricae presence or absence collar relatively stable culture, while length spines color changed. showed sister branches, supported independent Taxa genus sorted into clades five strongly clades. Key features could be attributed each