Morphological and Ribosomal DNA‐based Characterization of Six Antarctic Ciliate Morphospecies from the Amundsen Sea with Phylogenetic Analyses |
| |
| Authors: | Sun Young Kim Joong Ki Choi John R Dolan Hyoung Chul Shin SangHoon Lee Eun Jin Yang |
| |
| Institution: | 1. Department of Oceanography, Inha University, , Incheon, 402‐751 Korea;2. Korea Polar Research Institute, KIOST, , Yeonsu‐gu, Incheon, 405‐840 Korea;3. UMR 7093, Laboratoire d'Océanographie de Villefranche, Marine Microbial Ecology, Université Pierre et Marie Curie and Centre National de la Recherche Scientifique (CNRS), , 06230 Villefranche‐sur‐Mer, France |
| |
| Abstract: | We characterized six tintinnid ciliates from Antarctic waters using molecular markers and morphological traits: Amphorellopsis quinquealata, Codonellopsis gaussi, Cymatocylis convallaria, Cy. calyciformis, Cy. drygalskii, and Laackmanniella prolongata. The 100% similarity in SSU‐ITS1‐5.8S rDNA‐ITS2‐partial LSU rDNA sequences among Cy. convallaria, Cy. calyciformis, and Cy. drygalskii is supportive of synonymy. Codonellopsis gaussi and L. prolongata also showed high levels of similarity in SSU rDNA (99.83%) and the D2 domain of LSU rDNA (95.77%), suggesting that they are closely related. Phylogenetic analysis placed Cymatocylis in the Rhabdonellidae, Amphorellopsis in the Tintinnidae and L. prolongata/Co. gaussi within the Dictyocystidae. |
| |
| Keywords: | 18S 28S Antarctica marine ciliates planktonic ciliates taxonomy Tintinnida |
|
|
