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Int J Syst Evol Microbiol 53 (2003), 2099-2106; DOI  10.1099/ijs.0.02256-0
© 2003 International Union of Microbiological Societies

Phylogenetic affinities of the Trentepohliales inferred from small-subunit rDNA

Juan M. López-Bautista1 and Russell L. Chapman2

1 Department of Biological Sciences, The University of Alabama, PO Box 870345, Tuscaloosa, AL 35487, USA
2 Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803-1705, USA

Correspondence
Juan M. López-Bautista
lopez{at}bama.ua.edu

Phylogenetic analyses of the nuclear-encoded small-subunit rDNA sequences from taxa representing all of the major lineages of green algae, including new sequences for the Trentepohliales, consistently indicated that the subaerial Trentepohliales are closely related to ulvophycean marine green algae, particularly to the siphonous and hemisiphonous orders. The presence of phragmoplast-type cytokinesis in the order Trentepohliales remains enigmatic, and it is interesting that this type of cell division is associated with terrestrial (subaerial) habits.

The GenBank/EMBL/DDBJ accession numbers for the SSU rDNA sequences of Cephaleuros parasiticus, Cephaleuros virescens, Physolinum monile, Trentepohlia arborum, Trentepohlia aurea, Trentepohlia dialepta, Trentepohlia sp. and Phycopeltis sp. are respectively AY052563–AY052570.




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