Choi Jae Ho, Jeong Da Geum, Oh Ji Na, Kim Sung, Lee Youn Ho, UngChoi Young, Myoung Jung Goo, Kim Choong Gon
Department of Convergence Study on the Ocean Science and Technology Ocean Science and Technology School, Korea Maritime and Ocean University, Busan, Korea.
Marine Ecosystem Research Center, Korea Institute of Ocean Science and Technology, Busan, Korea.
Mitochondrial DNA B Resour. 2020 Nov 11;5(3):3733-3738. doi: 10.1080/23802359.2020.1831981.
The fish diversity of Chuuk Micronesia is currently under threat due to rapid changes in the coral reef ecosystem. Thus, accurate fish identification using DNA barcodes is fundamental for exploring species biodiversity and resource protection. In this study, we analyzed 162 fish mitochondrial DNA cytochrome oxidase I (COI) barcodes from Chuuk Micronesia. Consequently, we identified 95 species from 53 genera in 26 families and seven orders. The average Kimura 2-parameter genetic distances within species, genera, families, and orders were calculated as 0.17%, 11.78%, 15.63%, and 21.90%, respectively. Also, we have utilized DNA barcodes to perform genetic divergence and phylogenetic analysis of families recognized as dominant groups in Chuuk State. Our findings confirm that DNA barcodes using COI are an effective approach in identifying coral reef fish species. We anticipate that the results of this study will provide baseline data for the protection of coral reef fish biodiversity at Chuuk Micronesia.
由于珊瑚礁生态系统的迅速变化，密克罗尼西亚联邦楚克州的鱼类多样性目前正受到威胁。因此，利用DNA条形码准确识别鱼类对于探索物种生物多样性和资源保护至关重要。在本研究中，我们分析了来自密克罗尼西亚联邦楚克州的162个鱼类线粒体DNA细胞色素氧化酶I（COI）条形码。结果，我们从26个科、7个目中的53个属中鉴定出95个物种。种内、属内、科内和目内的平均Kimura双参数遗传距离分别计算为0.17%、11.78%、15.63%和21.90%。此外，我们还利用DNA条形码对楚克州被认为是优势群体的科进行了遗传分化和系统发育分析。我们的研究结果证实，使用COI的DNA条形码是识别珊瑚礁鱼类物种的有效方法。我们预计本研究结果将为保护密克罗尼西亚联邦楚克州的珊瑚礁鱼类生物多样性提供基线数据。
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