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RISS 인기검색어
- 검색키워드
- 저자 : Shulian Xie (검색결과 2 건)
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Evolutionary history of the monospecific Compsopogon genus (Compsopogonales, Rhodophyta)
Fangru Nan,Jia Feng,Junping Lv,Qi Liu,Shulian Xie 한국조류학회I 2016 ALGAE Vol.31 No.4
Compsopogon specimens collected in China were examined based on morphology and DNA sequences. Five molecularmarkers from different genome compartments including rbcL, COI, 18S rDNA, psbA, and UPA were identified andused to construct a phylogenetic relationship. Phylogenetic analyses indicated that two different morphological typesfrom China clustered into an independent clade with Compsopogon specimens when compared to other global samples. The Compsopogon clade exhibited robust support values, revealing the affiliation of the samples to Compsopogon caeruleus. Although the samples were distributed in a close geographical area, unexpected sequence divergences betweenthe Chinese samples implied that they were introduced by different dispersal events and from varied origins. It wasspeculated that Compsopogon originated in North America, a portion of the Laurentia landmass situated in the Rodiniasupercontinent at approximately 573.89-1,701.50 million years ago during the Proterozoic era. Although Compsopogonhad evolved for a rather long time, genetic conservation had limited its variability and rate of evolution, resulting in thecurrent monospecific global distribution. Additional global specimens and sequence information were required to increaseour understanding of the evolutionary history of this ancient red algal lineage.
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Evolutionary history of the monospecific Compsopogon genus (Compsopogonales, Rhodophyta)
Nan, Fangru,Feng, Jia,Lv, Junping,Liu, Qi,Xie, Shulian The Korean Society of Phycology 2016 ALGAE Vol.31 No.4
Compsopogon specimens collected in China were examined based on morphology and DNA sequences. Five molecular markers from different genome compartments including rbcL, COI, 18S rDNA, psbA, and UPA were identified and used to construct a phylogenetic relationship. Phylogenetic analyses indicated that two different morphological types from China clustered into an independent clade with Compsopogon specimens when compared to other global samples. The Compsopogon clade exhibited robust support values, revealing the affiliation of the samples to Compsopogon caeruleus. Although the samples were distributed in a close geographical area, unexpected sequence divergences between the Chinese samples implied that they were introduced by different dispersal events and from varied origins. It was speculated that Compsopogon originated in North America, a portion of the Laurentia landmass situated in the Rodinia supercontinent at approximately 573.89-1,701.50 million years ago during the Proterozoic era.Although Compsopogonhad evolved for a rather long time, genetic conservation had limited its variability and rate of evolution, resulting in the current monospecific global distribution. Additional global specimens and sequence information were required to increase our understanding of the evolutionary history of this ancient red algal lineage.
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