Genetic and morphological differentiation in the hermatypic coral Galaxea fascicularis in Okinawa, Japan
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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 Biosciences, Ocean Research Institute, The University of Tokyo
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- Suzuki Yuta
- 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
書誌事項
- タイトル別名
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- Genetic and morphological differentiation in the hermatypic coral <i>Galaxea fascicularis</i> in Okinawa, Japan
- Genetic and morphological differentiation in the hermatypic coral <italic>Galaxea fascicularis</italic> in Okinawa, Japan
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説明
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.
収録刊行物
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- Plankton and Benthos Research
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Plankton and Benthos Research 3 (3), 174-179, 2008
日本プランクトン学会、日本ベントス学会
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詳細情報 詳細情報について
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- CRID
- 1390001205265372288
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- NII論文ID
- 10021907584
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- NII書誌ID
- AA12130745
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- ISSN
- 1882627X
- 18808247
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- NDL書誌ID
- 9638121
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
