Genetic and morphological differentiation in the hermatypic coral Galaxea fascicularis in Okinawa, Japan
スポンサーリンク
概要
- 論文の詳細を見る
Galaxea fascicularis is a common reef-building coral in the Indo-Pacific area including the Ryukyu Archipelago. A previous study on nematocyst morphology and mitochondrial genotype suggested that G. fascicularis consists of two genetically differentiated groups. However, the extent of the reproductive barrier between the two groups remains unknown. In the present study, more than 99% of G. fascicularis colonies were classified into two groups based on allelic difference of a nuclear microsatellite locus. Colonies exhibiting the hybrid genotype were rare (only two out of 224 colonies), suggesting that the reproductive barrier between the groups is nearly impermeable. The two groups were highly correlated to different nematocyst types and mitochondrial haplotypes, supporting the previous hypothesis that G. fascicularis consists of two genetically and morphologically differentiated lineages in the Ryukyu Archipelago. However, the frequencies of six color morphs were rather similar between the two groups, indicating that the evolution of the color variation had occurred before the divergence of G. fascicularis into the two lineages.
- 日本プランクトン学会、日本ベントス学会の論文
- 2008-08-01
著者
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Suzuki Yuta
Division of Cardiology Department of Medicine, Keio University School of Medicine
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Watanabe Toshiki
Division of Molecular Marine Biology, Ocean Research Institute, The University of Tokyo
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Watanabe Toshiki
Division Of Marine Biosciences Ocean Research Institute The University Of Tokyo
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HIDAKA MICHIO
Department of Chemistry, Biology and Marine Sciences, Faculty of Science, University of the Ryukyus
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Hidaka Michio
Department Of Chemistry Biology And Marine Sciences Faculty Of Science University Of The Ryukyus
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Hidaka Michio
Department Of Biology University Of The Ryukyus
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Suzuki Yuta
Division Of Cardiology Department Of Medicine Keio University School Of Medicine
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Suzuki Yuta
Division Of Marine Biosciences Ocean Research Institute The University Of Tokyo
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ABE MARIKO
Graduate School of Engineering and Science, University of the Ryukyus
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Abe Mariko
Graduate School Of Engineering And Science University Of The Ryukyus
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Watanabe Toshiki
Division Of Marine Bioscience Ocean Research Institute The University Of Tokyo
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