Insights into the Genetic Connectivity and Climate-Driven Northward Range Expansion of <i>Turbo sazae</i> (Gastropoda: Turbinidae) Along the Eastern Coast of Korea
<i>Turbo sazae</i>, a commercially and ecologically significant marine gastropod traditionally found in Jeju Island and the southern coast of Korea, is experiencing a reported northward expansion into the East Sea, likely influenced by rising seawater temperatures. This study provides pr...
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MDPI AG
2025-05-01
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| author | Young-Ghan Cho Kyungman Kwon Hyun Soo Rho Won-Gi Min Hee-Do Jeung Un-Ki Hwang Yong-Kyun Ryu Areumi Park Hyun-Ki Hong Jong-Seop Shin Hyun-Sung Yang |
| author_facet | Young-Ghan Cho Kyungman Kwon Hyun Soo Rho Won-Gi Min Hee-Do Jeung Un-Ki Hwang Yong-Kyun Ryu Areumi Park Hyun-Ki Hong Jong-Seop Shin Hyun-Sung Yang |
| author_sort | Young-Ghan Cho |
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| description | <i>Turbo sazae</i>, a commercially and ecologically significant marine gastropod traditionally found in Jeju Island and the southern coast of Korea, is experiencing a reported northward expansion into the East Sea, likely influenced by rising seawater temperatures. This study provides preliminary genetic insights into the genetic structure and connectivity of <i>T. sazae</i> populations between Jeju and the East Sea using mitochondrial COI sequences. Samples from 6 geographically distinct locations were analyzed, with three cloned replicates generated to enhance sequence reliability. Genetic diversity, haplotype distribution, and population differentiation were then assessed. Our analysis reveals potential genetic connectivity between Jeju and East Sea populations, possibly driven by larval dispersal via the Kuroshio and Tsushima Currents, highlighted by the predominance of shared haplotype EJ1 (60.0% in Jeju, 50.0% in East Sea). Bayesian phylogenetic analysis estimated the time to the most recent common ancestor (MRCA) between Jeju and East Sea populations at approximately 9.7 to 23.3 million years ago, indicating ancient divergence rather than very recent separation. Pairwise FST values and AMOVA results showed generally low levels of genetic differentiation. Given the small sample sizes and use of a single mitochondrial marker, these findings should be interpreted cautiously as preliminary evidence. Nevertheless, this study highlights the need for continued genetic monitoring of <i>T. sazae</i> populations under climate-driven range shifts and provides a foundation for future research incorporating broader genomic approaches. |
| format | Article |
| id | doaj-art-145892e2ae2f4f12a3a357bc99f876a4 |
| institution | OA Journals |
| issn | 2076-2615 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Animals |
| spelling | doaj-art-145892e2ae2f4f12a3a357bc99f876a42025-08-20T02:24:43ZengMDPI AGAnimals2076-26152025-05-01159132110.3390/ani15091321Insights into the Genetic Connectivity and Climate-Driven Northward Range Expansion of <i>Turbo sazae</i> (Gastropoda: Turbinidae) Along the Eastern Coast of KoreaYoung-Ghan Cho0Kyungman Kwon1Hyun Soo Rho2Won-Gi Min3Hee-Do Jeung4Un-Ki Hwang5Yong-Kyun Ryu6Areumi Park7Hyun-Ki Hong8Jong-Seop Shin9Hyun-Sung Yang10Tidal Flat Research Center, National Institute of Fisheries Science, 405 Gangbyeonro, Gunsan 54042, Republic of KoreaTropical & Subtropical Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of KoreaEast Sea Environment Research Center, Korea Institute of Ocean Science and Technology (KIOST), Uljin 36315, Republic of KoreaEast Sea Environment Research Center, Korea Institute of Ocean Science and Technology (KIOST), Uljin 36315, Republic of KoreaTidal Flat Research Center, National Institute of Fisheries Science, 405 Gangbyeonro, Gunsan 54042, Republic of KoreaTidal Flat Research Center, National Institute of Fisheries Science, 405 Gangbyeonro, Gunsan 54042, Republic of KoreaJeju Bio Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of KoreaJeju Bio Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of KoreaDepartment of Marine Biology and Aquaculture, Gyeongsang National University, Tongyeong 53064, Republic of KoreaTropical & Subtropical Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of KoreaTropical & Subtropical Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of Korea<i>Turbo sazae</i>, a commercially and ecologically significant marine gastropod traditionally found in Jeju Island and the southern coast of Korea, is experiencing a reported northward expansion into the East Sea, likely influenced by rising seawater temperatures. This study provides preliminary genetic insights into the genetic structure and connectivity of <i>T. sazae</i> populations between Jeju and the East Sea using mitochondrial COI sequences. Samples from 6 geographically distinct locations were analyzed, with three cloned replicates generated to enhance sequence reliability. Genetic diversity, haplotype distribution, and population differentiation were then assessed. Our analysis reveals potential genetic connectivity between Jeju and East Sea populations, possibly driven by larval dispersal via the Kuroshio and Tsushima Currents, highlighted by the predominance of shared haplotype EJ1 (60.0% in Jeju, 50.0% in East Sea). Bayesian phylogenetic analysis estimated the time to the most recent common ancestor (MRCA) between Jeju and East Sea populations at approximately 9.7 to 23.3 million years ago, indicating ancient divergence rather than very recent separation. Pairwise FST values and AMOVA results showed generally low levels of genetic differentiation. Given the small sample sizes and use of a single mitochondrial marker, these findings should be interpreted cautiously as preliminary evidence. Nevertheless, this study highlights the need for continued genetic monitoring of <i>T. sazae</i> populations under climate-driven range shifts and provides a foundation for future research incorporating broader genomic approaches.https://www.mdpi.com/2076-2615/15/9/1321<i>Turbo sazae</i>genetic connectivityclimate-driven range expansionhaplotype diversity |
| spellingShingle | Young-Ghan Cho Kyungman Kwon Hyun Soo Rho Won-Gi Min Hee-Do Jeung Un-Ki Hwang Yong-Kyun Ryu Areumi Park Hyun-Ki Hong Jong-Seop Shin Hyun-Sung Yang Insights into the Genetic Connectivity and Climate-Driven Northward Range Expansion of <i>Turbo sazae</i> (Gastropoda: Turbinidae) Along the Eastern Coast of Korea Animals <i>Turbo sazae</i> genetic connectivity climate-driven range expansion haplotype diversity |
| title | Insights into the Genetic Connectivity and Climate-Driven Northward Range Expansion of <i>Turbo sazae</i> (Gastropoda: Turbinidae) Along the Eastern Coast of Korea |
| title_full | Insights into the Genetic Connectivity and Climate-Driven Northward Range Expansion of <i>Turbo sazae</i> (Gastropoda: Turbinidae) Along the Eastern Coast of Korea |
| title_fullStr | Insights into the Genetic Connectivity and Climate-Driven Northward Range Expansion of <i>Turbo sazae</i> (Gastropoda: Turbinidae) Along the Eastern Coast of Korea |
| title_full_unstemmed | Insights into the Genetic Connectivity and Climate-Driven Northward Range Expansion of <i>Turbo sazae</i> (Gastropoda: Turbinidae) Along the Eastern Coast of Korea |
| title_short | Insights into the Genetic Connectivity and Climate-Driven Northward Range Expansion of <i>Turbo sazae</i> (Gastropoda: Turbinidae) Along the Eastern Coast of Korea |
| title_sort | insights into the genetic connectivity and climate driven northward range expansion of i turbo sazae i gastropoda turbinidae along the eastern coast of korea |
| topic | <i>Turbo sazae</i> genetic connectivity climate-driven range expansion haplotype diversity |
| url | https://www.mdpi.com/2076-2615/15/9/1321 |
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