Cyst-theca relationship of the arctic dinoflagellate cyst Islandinium minutum (Dinophyceae) and phylogenetic position based on SSU rDNA and LSU rDNA

Cyst-theca relationship of the arctic dinoflagellate cyst Islandinium minutum (Dinophyceae) and phylogenetic position based on SSU rDNA and LSU rDNA

© 2013 Phycological Society of America.

Bibliographische Detailangaben
Veröffentlicht in:Journal of phycology. - 1966. - 49(2013), 5 vom: 13. Okt., Seite 848-66
1. Verfasser: Potvin, Éric (VerfasserIn)
Weitere Verfasser: Rochon, André, Lovejoy, Connie
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Journal of phycology
Schlagworte:Journal Article Amphidiniopsis dragescoi Archaeperidinium Baffin Bay Echinidinium Herdmania litoralis Islandinium minutum Protoperidiniaceae Protoperidinium minutum round brown spiny cyst single-cell PCR
Beschreibung
Zusammenfassung:© 2013 Phycological Society of America.
Round brown spiny cysts constitute a morphological group common in high latitude dinoflagellate cyst assemblages. The dinoflagellate cyst Islandinium minutum (Harland et Reid) Head, Harland et Matthiessen is the main paleoecological indicator of seasonal sea-ice cover in the Arctic. Despite the importance of this cyst in paleoceanographical studies, its biological affinity has so far been unknown. The biological affinity of the species I. minutum and its phylogenetic position based on the small subunit ribosomal RNA gene (SSU rDNA) and the large subunit ribosomal RNA gene (LSU rDNA) were established from cyst incubation experiments in controlled conditions, optical and scanning electron microscopy, and single-cell PCR. The thecal motile cell obtained was undescribed. Although the motile cell was similar to Archaeperidinium minutum (Kofoid) Jörgensen, the motile cell of I. minutum lacked a transitional plate in the cingular series, which is present in Archaeperidinium spp. Islandinium minutum and Archaeperidinium spp. were paraphyletic in all phylogenetic analyses. Furthermore, Protoperidinium tricingulatum, which also lacks a transitional plate, was closely related to I. minutum and transfered to the genus Islandinium. Based on available data, it is clear that Islandinium is distinct from Archaeperidinium. Therefore, we considered Islandinium Head, Harland et Matthiessen as a non-fossil genus and emend its description, as well as the species I. minutum. This is the first description of a cyst-theca relationship and the first study that reports molecular data based on SSU rDNA and LSU rDNA on a species assigned to the genus Islandinium
Beschreibung:Date Completed 25.03.2016
Date Revised 24.03.2016
published: Print-Electronic
GENBANK: AB181881, AB181886, AB181888, AB181891, AB181892, AB181894, AB181899, AB181903, AB181906, AB181907, AB185114, AB255833, AB255834, AB255835, AB255838, AB255839, AB255842, AB255843, AB255848, AB255854, AB255861, AB255865, AB261512, AB261513, AB261514, AB261520, AB273723, AB273725, AB275355, AB284159, AB284160, AB564298, AB564299, AB564300, AB564301, AB564302, AB564303, AB564304, AB564305, AB564306, AB564307, AB564308, AB564309, AB564310, AB702987, AB702991, AB716916, AB716917, AB716918, AF012883, AF022191, AF022198, AF022200, AF076901, AF200668, AF231805, AF260384, AF260385, AF260393, AF260401, AF274251, AF274266, AF274276, AF274277, AJ535380, AY238477, AY238478, AY238479, AY455673, AY571372, DQ444226, DQ444229, DQ444231, DQ444233, DQ444234, DQ444236, DQ444237, DQ453522, EF152811, EF152871, EF152891, EF152936, EF613364, EF613365, EU046327, GQ227501, GQ227502, GU295207, GU295209, JX627340, JX627341, JX627342, JX627343, JX627344, JX627345, JX627346, JX627347, JX627348, JX627349, L13719, M64244
Citation Status PubMed-not-MEDLINE
ISSN:1529-8817
DOI:10.1111/jpy.12089