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Comprehensive comparisons of three pennate diatoms, Diatoma tenuae, Fragilaria vaucheriae, and Navicula pelliculosa, isolated from summer Arctic reservoirs (Svalbard 79N), by fine-scale morphology and

Cited 15 time in scopus
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Title
Comprehensive comparisons of three pennate diatoms, Diatoma tenuae, Fragilaria vaucheriae, and Navicula pelliculosa, isolated from summer Arctic reservoirs (Svalbard 79N), by fine-scale morphology and
Authors
Ki, Jang-Seu
Kang, Sung-Ho
조순연
Han, Myung-Soo
박범수
Lee, Juyun
Jung, Seung Won
T Katano
Keywords
Arctic; Diatom; Morphology; Phylogeny; Svalbard
Issue Date
2009
Publisher
Springer
Citation
Ki, Jang-Seu, et al. 2009. "Comprehensive comparisons of three pennate diatoms, Diatoma tenuae, Fragilaria vaucheriae, and Navicula pelliculosa, isolated from summer Arctic reservoirs (Svalbard 79N), by fine-scale morphology and". POLAR BIOLOGY, 31(13): 0-0.
Abstract
Here we report morphological and molecular characteristics of dominant freshwater diatoms in summer Arctic reservoirs of Svalbard (Norway), using four culture isolates, when we collected the samples in the Weld on 15 August 2005. Analyses of morphology and BLAST searches with 18S rDNA sequences identiWed them to Diatoma tenue (HYNP006, HYNP013), Navicula pelliculosa (HYNP021), and Fragilaria vaucheriae (HYNP022), respectively. Comparative studies of morphology revealed that the body shapes of the three polar diatoms were nearly identical to the known morphology of each species;however, they were considerably shorter in body length than previously described identical species from other locations. The 18S rDNA sequences of the diatoms were nearly identical to the same species from temperate and other regions. Phylogenetic analysis showed that the polar diatoms each formed a clade with their identical species and genera according to their taxonomic positions. This suggests that the polar diatoms may possess little or no genetic or morphological variation compared to more temperate strains.
URI
http://repository.kopri.re.kr/handle/201206/7229
DOI
http://dx.doi.org/10.1007/s00300-008-0514-0
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