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| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Current biology : CB
2026
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/41679308/ |
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| _version_ | 1868266087546617857 |
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| author | Chen, Xi Jun, Siyeong Chen, Chong Liu, Ran Xu, Ting Zhang, Hongyin Gao, Yue He, Xing Liu, Xu Gao, Kexin Gu, Xinyu Yeum, Heeseung Kim, Dongyoung Jeong, Choongwon Zhou, Yadong Takai, Ken Wang, Yan Qian, Pei-Yuan Won, Yong-Jin Sun, Jin |
| author_facet | Chen, Xi Jun, Siyeong Chen, Chong Liu, Ran Xu, Ting Zhang, Hongyin Gao, Yue He, Xing Liu, Xu Gao, Kexin Gu, Xinyu Yeum, Heeseung Kim, Dongyoung Jeong, Choongwon Zhou, Yadong Takai, Ken Wang, Yan Qian, Pei-Yuan Won, Yong-Jin Sun, Jin Chen, Xi Jun, Siyeong Chen, Chong Liu, Ran Xu, Ting Zhang, Hongyin Gao, Yue He, Xing Liu, Xu Gao, Kexin Gu, Xinyu Yeum, Heeseung Kim, Dongyoung Jeong, Choongwon Zhou, Yadong Takai, Ken Wang, Yan Qian, Pei-Yuan Won, Yong-Jin Sun, Jin |
| collection | PubMed - marine biology |
| contents | Dispersal and isolation of the scaly-foot snail across abyssal insular habitats and through time. Chen, Xi Jun, Siyeong Chen, Chong Liu, Ran Xu, Ting Zhang, Hongyin Gao, Yue He, Xing Liu, Xu Gao, Kexin Gu, Xinyu Yeum, Heeseung Kim, Dongyoung Jeong, Choongwon Zhou, Yadong Takai, Ken Wang, Yan Qian, Pei-Yuan Won, Yong-Jin Sun, Jin Animals Snails Indian Ocean Ecosystem Animal Distribution Gene Flow Polymorphism, Single Nucleotide Hydrothermal Vents How species disperse and have dispersed is a central question in biology, as it governs patterns of genetic isolation and is a key driver of evolutionary processes. Over 600 hydrothermal vents worldwide are grouped into more than 10 biogeographic provinces, but even within each province, the dispersal barriers remain poorly understood. The scaly-foot snail (Chrysomallon squamiferum) is an iconic species with ironclad scales distributed across the Indian Ocean, providing an opportunity to test dispersal across these well-separated insular habitats. Here, we present the first population genomic study of Indian Ocean vents using this species. By analyzing 125 individuals from eight vents using 14 million single-nucleotide polymorphisms, we identify five genetic groups. Among these, the most genetically distinct were Longqi-Duanqiao fields on the Southwest Indian Ridge and the Wocan field on the Carlsberg Ridge. Demographic modeling indicates that contributions from extinct or unsampled "ghost populations" critically facilitated the contemporary genetic structure. Combined with physical ocean modeling, we show that deep currents shape asymmetric gene flow from south to north, whereas transform faults act as dispersal barriers. Furthermore, we identify an extinct vent field on the Central Indian Ridge and an unsampled vent plume signal on the Southwest Indian Ridge as the two most plausible locations representing the key ghost populations. Given its exceptional adaptations and public recognition, the scaly-foot snail is well positioned as a flagship and umbrella species, and our findings thus provide essential baseline data for conservation biology in light of deep-sea mining. |
| format | Artículo científico |
| id | pubmed_41679308 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Current biology : CB |
| record_format | pubmed |
| spellingShingle | Dispersal and isolation of the scaly-foot snail across abyssal insular habitats and through time. Chen, Xi Jun, Siyeong Chen, Chong Liu, Ran Xu, Ting Zhang, Hongyin Gao, Yue He, Xing Liu, Xu Gao, Kexin Gu, Xinyu Yeum, Heeseung Kim, Dongyoung Jeong, Choongwon Zhou, Yadong Takai, Ken Wang, Yan Qian, Pei-Yuan Won, Yong-Jin Sun, Jin Animals Snails Indian Ocean Ecosystem Animal Distribution Gene Flow Polymorphism, Single Nucleotide Hydrothermal Vents Dispersal and isolation of the scaly-foot snail across abyssal insular habitats and through time. Chen, Xi Jun, Siyeong Chen, Chong Liu, Ran Xu, Ting Zhang, Hongyin Gao, Yue He, Xing Liu, Xu Gao, Kexin Gu, Xinyu Yeum, Heeseung Kim, Dongyoung Jeong, Choongwon Zhou, Yadong Takai, Ken Wang, Yan Qian, Pei-Yuan Won, Yong-Jin Sun, Jin Animals Snails Indian Ocean Ecosystem Animal Distribution Gene Flow Polymorphism, Single Nucleotide Hydrothermal Vents How species disperse and have dispersed is a central question in biology, as it governs patterns of genetic isolation and is a key driver of evolutionary processes. Over 600 hydrothermal vents worldwide are grouped into more than 10 biogeographic provinces, but even within each province, the dispersal barriers remain poorly understood. The scaly-foot snail (Chrysomallon squamiferum) is an iconic species with ironclad scales distributed across the Indian Ocean, providing an opportunity to test dispersal across these well-separated insular habitats. Here, we present the first population genomic study of Indian Ocean vents using this species. By analyzing 125 individuals from eight vents using 14 million single-nucleotide polymorphisms, we identify five genetic groups. Among these, the most genetically distinct were Longqi-Duanqiao fields on the Southwest Indian Ridge and the Wocan field on the Carlsberg Ridge. Demographic modeling indicates that contributions from extinct or unsampled "ghost populations" critically facilitated the contemporary genetic structure. Combined with physical ocean modeling, we show that deep currents shape asymmetric gene flow from south to north, whereas transform faults act as dispersal barriers. Furthermore, we identify an extinct vent field on the Central Indian Ridge and an unsampled vent plume signal on the Southwest Indian Ridge as the two most plausible locations representing the key ghost populations. Given its exceptional adaptations and public recognition, the scaly-foot snail is well positioned as a flagship and umbrella species, and our findings thus provide essential baseline data for conservation biology in light of deep-sea mining. |
| title | Dispersal and isolation of the scaly-foot snail across abyssal insular habitats and through time. |
| topic | Animals Snails Indian Ocean Ecosystem Animal Distribution Gene Flow Polymorphism, Single Nucleotide Hydrothermal Vents |
| url | https://pubmed.ncbi.nlm.nih.gov/41679308/ |