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Two independent introductions of Cladonia borealis in King George Island, Antarctica

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Title
Two independent introductions of Cladonia borealis in King George Island, Antarctica
Other Titles
남극 킹조지섬 Cladonia borealis의 두번의 독립적인 유입
Authors
Hong, Soon Gyu
Park, Chae Haeng
Jeong, Gajin
Keywords
Cladonia borealis; King George Island; multiple introduction
Issue Date
2011
Citation
Hong, Soon Gyu, Park, Chae Haeng, Jeong, Gajin. 2011. Two independent introductions of Cladonia borealis in King George Island, Antarctica. Polar and Alpine Microbiology. Polar and Alpine Microbiology. 2011.10.17~.
Abstract
Cladonia borealis, which is frequently found in King George Island, is highly variable in morphological features. In order to understand the origin of mophological diversity and phylogeographic history of C. borealis, 42 specimens from King George Island were compared with specimens from Svalbard and Punta Arenas. We generated DNA sequence data from the ITS1-5.8S-ITS2-LSU rDNA gene including introns in SSU and LSU rDNA genes and conducted phylogenetic and haplotype network analyses. Cladonia borealis from King George Island was separated into two monophyletic groups. It was proposed that the two monophyletic groups in King George Island have originated by two independent introduction events after long distance dispersal. As phylogenetic lineage sorting, environmental factors or algal partner could not explain morphological diversity, it is proposed that genetic diversity of functional genes in the population may explain the morphological diversity.
URI
http://repository.kopri.re.kr/handle/201206/8508
Conference Name
Polar and Alpine Microbiology
Conference Place
Polar and Alpine Microbiology
Conference Date
2011.10.17~
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