A new genus, Helgoeca gen. nov., for a nudiform choanoflagellate

@article{citeulike:3024651, abstract = {A new genus, Helgoeca gen. nov., has been designated to accommodate a nudiform loricate choanoflagellate (American Type Culture Collection strain ATCC 50073) that was incorrectly attributed to the tectiform genus Acanthoecopsis (=Acanthocorbis). The first indication that this species might be nudiform came from a four-gene phylogeny of the choanoflagellates which recovered ATCC 50073 within a strongly supported monophyletic clade comprising two other nudiform taxa. Fortunately an isolate of the species in question was available from the ATCC and when observed in rapidly growing culture it was immediately apparent that this species divided with the production of [`]naked' motile cells; a typically nudiform character. The beaker-shaped lorica of this species consists of an outer layer of approximately 11 longitudinal costae, which terminate anteriorly as spines, and an equal or larger number of helical costae, with a left-handed conformation, each of which terminates anteriorly adjacent to the base of a spine. The pattern of costae in this species is indistinguishable from that of Acanthocorbis nana Thomsen and for this reason A. nana has been transferred to the new genus Helgoeca gen. nov., as the type species.}, author = {Leadbeater, Barry S. and Hassan, Ruhana and Nelson, Michaela and Carr, Martin and Baldauf, Sandra L. }, citeulike-article-id = {3024651}, doi = {http://dx.doi.org/10.1016/j.ejop.2008.01.003}, journal = {European Journal of Protistology}, keywords = {choanoflagellates, protists}, month = {August}, number = {3}, pages = {227--237}, posted-at = {2008-07-21 15:54:35}, priority = {2}, title = {A new genus, Helgoeca gen. nov., for a nudiform choanoflagellate}, url = {http://dx.doi.org/10.1016/j.ejop.2008.01.003}, volume = {44}, year = {2008} }

TY - JOUR ID - citeulike:3024651 L3 - citeulike-article-id:3024651 TI - A new genus, Helgoeca gen. nov., for a nudiform choanoflagellate JF - European Journal of Protistology VL - 44 IS - 3 SP - 227 EP - 237 N2 - A new genus, Helgoeca gen. nov., has been designated to accommodate a nudiform loricate choanoflagellate (American Type Culture Collection strain ATCC 50073) that was incorrectly attributed to the tectiform genus Acanthoecopsis (=Acanthocorbis). The first indication that this species might be nudiform came from a four-gene phylogeny of the choanoflagellates which recovered ATCC 50073 within a strongly supported monophyletic clade comprising two other nudiform taxa. Fortunately an isolate of the species in question was available from the ATCC and when observed in rapidly growing culture it was immediately apparent that this species divided with the production of [`]naked' motile cells; a typically nudiform character. The beaker-shaped lorica of this species consists of an outer layer of approximately 11 longitudinal costae, which terminate anteriorly as spines, and an equal or larger number of helical costae, with a left-handed conformation, each of which terminates anteriorly adjacent to the base of a spine. The pattern of costae in this species is indistinguishable from that of Acanthocorbis nana Thomsen and for this reason A. nana has been transferred to the new genus Helgoeca gen. nov., as the type species. KW - choanoflagellates KW - protists AU - Leadbeater, Barry AU - Hassan, Ruhana AU - Nelson, Michaela AU - Carr, Martin AU - Baldauf, Sandra PY - 2008/08/01/ UR - http://dx.doi.org/10.1016/j.ejop.2008.01.003 ER -