21561747
not annotated - annotated - LINNAEUS only
Morphological differences and molecular phylogeny of freshwater blooming species, Peridiniopsis spp. (Dinophyceae) from China.
In 2008-2010, several freshwater dinoflagellate blooms caused by Peridiniopsis spp. were observed in China. P. penardii and P. niei sampled from various geographical localities were examined by means of light and scanning electron microscopy. After comparing morphological and molecular differences, the new freshwater variety Peridiniopsis penardii var. robusta var. nov. (Peridiniales, Dinophyceae) found in Manwan Reservoir, Yunnan Province was described. The new variety differed from P. penardii since it possessed numerous robust antapical spines and a conspicuous apical spine. Molecular phylogenetic analyses based on SSU, LSU and ITS indicated P. niei, P. penardii and P. penardii var. robusta were closely related with P. kevei, and clustered into a monophyletic clade. The new variety possessed an endosymbiotic diatom which was similar to P. penardii and P. kevei, whereas the endosymbiont was not present in cells of P. niei. The endosymbiont SSU and ITS phylogenies showed that the endosymbionts of these three dinoflagellates were closely related to members of Thalassiosirales. Furthermore it was concluded that the endosymbionts might originate from Discostella-like species.
Ann file
T1 Species 237 248 P. penardii
N1 Reference T1 Taxonomy:459342
T2 Species 253 260 P. niei
N2 Reference T2 Taxonomy:622781
T3 Species 782 789 P. niei
N3 Reference T3 Taxonomy:622781
T4 Species 1059 1066 P. niei
N4 Reference T4 Taxonomy:622781
T5 Species 618 629 P. penardii
T6 Species 456 478 Peridiniopsis penardii
T7 Species 791 802 P. penardii
T8 Species 807 818 P. penardii
T9 Species 980 991 P. penardii
T10 Species 996 1004 P. kevei
N5 Reference T5 Taxonomy:459342 Unruhdinium penardii
N6 Reference T6 Taxonomy:459342 Unruhdinium penardii
N7 Reference T7 Taxonomy:459342 Unruhdinium penardii
N8 Reference T8 Taxonomy:459342 Unruhdinium penardii
N9 Reference T9 Taxonomy:459342 Unruhdinium penardii
N10 Reference T10 Taxonomy:459341 Peridiniopsis cf. kevei
T11 Species 858 866 P. kevei
N11 Reference T11 Taxonomy:459341 Peridiniopsis cf. kevei