Author for correspondence: e-mail firstname.lastname@example.org.
TAXONOMY OF THE PHACUS OSCILLANS (EUGLENACEAE) AND ITS CLOSE RELATIVES—BALANCING MORPHOLOGICAL AND MOLECULAR FEATURES1
Article first published online: 24 NOV 2009
© 2009 Phycological Society of America
Journal of Phycology
Volume 46, Issue 1, pages 172–182, February 2010
How to Cite
Karnkowska-Ishikawa, A., Milanowski, R., Kwiatowski, J. and Zakryś , B. (2010), TAXONOMY OF THE PHACUS OSCILLANS (EUGLENACEAE) AND ITS CLOSE RELATIVES—BALANCING MORPHOLOGICAL AND MOLECULAR FEATURES. Journal of Phycology, 46: 172–182. doi: 10.1111/j.1529-8817.2009.00765.x
Received 6 February 2009. Accepted 12 June 2009.
- Issue published online: 20 JAN 2010
- Article first published online: 24 NOV 2009
- asexual organisms;
- molecular phylogeny;
- sequence variability;
- taxonomic revision
The establishment of epitypes (together with emended diagnoses) for seven species of Phacus Dujard. [Phacus oscillans G. A. Klebs, Phacus parvulus G. A. Klebs, Phacus pusillus Lemmerm., Phacus skujae Skvortzov, Phacus inflexus (Kisselew) Pochm., Phacus polytrophos Pochm., and Phacus smulkowskianus (Zakryś) Kusber] was achieved by literature studies, verification of morphological diagnostic features (cell size, cell shape), as well as molecular characters (SSU rDNA). The investigated Phacus species are mostly well distinguished morphologically, with an SSU rDNA interspecific sequence similarity of 95.1%–99.0% and an intraspecific sequence similarity of 99.0%–99.9%. Some of the phylogenetic relationships among the seven species have not been resolved, but the topology obtained indicates their assignment into two sister clades. The first clade is composed of two sister groups (P. parvulus and P. pusillus), while the second constitutes an assemblage of the remaining five species. The relationships between the clades remain unresolved.