Geographical subdivision of Alviniconcha snail populations in the Indian Ocean hydrothermal vent regions
The hairy snails of the genus Alviniconcha are representative deep-sea hydrothermal vent animals distributed across the Western Pacific and Indian Ocean. Out of six known species in the genus Alviniconcha, only one nominal species of A. marisindica was found in the Indian Ocean from the Carlsberg Ri...
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Frontiers Media S.A.
2023-04-01
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Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2023.1139190/full |
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author | Sook-Jin Jang Soo-Yeon Cho Chuyu Li Yadong Zhou Hui Wang Jin Sun Ajit Kumar Patra Yong-Jin Won |
author_facet | Sook-Jin Jang Soo-Yeon Cho Chuyu Li Yadong Zhou Hui Wang Jin Sun Ajit Kumar Patra Yong-Jin Won |
author_sort | Sook-Jin Jang |
collection | DOAJ |
description | The hairy snails of the genus Alviniconcha are representative deep-sea hydrothermal vent animals distributed across the Western Pacific and Indian Ocean. Out of six known species in the genus Alviniconcha, only one nominal species of A. marisindica was found in the Indian Ocean from the Carlsberg Ridge (CR), Central Indian Ridge (CIR) to the northern part of Southwest Indian Ridge (SWIR) and Southeast Indian Ridge (SEIR). Recently, the Alviniconcha snails were found at three new vent fields, named Onnare, Onbada, and Onnuri, in the northern CIR, which promotes a more comprehensive phylogeographic study of this species. Here, we examined the phylogeography and connectivity of the Alviniconcha snails among seven vent fields representing the CR and CIR based on DNA sequence data of a mitochondrial COI gene and two protein-coding nuclear genes. Phylogenetic inferences revealed that the Alviniconcha snails of the newly found in the northern CIR and two vent fields of Wocan and Tianxiu in the CR were divergent with the previously identified A. marisindica in the southern CIR and mitochondrial COI data supported the divergence with at least greater than 3% sequence divergence. Population structure analyses based on the three genetic markers detected a phylogeographic boundary between Onnuri and Solitaire that divides the whole snail populations into northern and southern groups with a low migration rate. The high degree of genetic disconnection around the ‘Onnuri’ boundary suggests that the Alviniconcha snails in the Indian Ocean may undergo allopatric speciation. The border may similarly act as a dispersal barrier to many other vent species co-distributed in the CIR. This study would expand understanding the speciation and connectivity of vent species in the Indian Ocean. |
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last_indexed | 2024-04-09T19:49:02Z |
publishDate | 2023-04-01 |
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spelling | doaj.art-bb37626a6383408a8c583a86dfea05ed2023-04-03T11:52:31ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452023-04-011010.3389/fmars.2023.11391901139190Geographical subdivision of Alviniconcha snail populations in the Indian Ocean hydrothermal vent regionsSook-Jin Jang0Soo-Yeon Cho1Chuyu Li2Yadong Zhou3Hui Wang4Jin Sun5Ajit Kumar Patra6Yong-Jin Won7BK21 Center for Precision Medicine & Smart Engineering, Inha University, Incheon, Republic of KoreaDivision of Ecoscience, Ewha Womans University, Seoul, Republic of KoreaInstitute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao, ChinaKey Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, ChinaInstitute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao, ChinaInstitute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao, ChinaDivision of Ecoscience, Ewha Womans University, Seoul, Republic of KoreaDivision of Ecoscience, Ewha Womans University, Seoul, Republic of KoreaThe hairy snails of the genus Alviniconcha are representative deep-sea hydrothermal vent animals distributed across the Western Pacific and Indian Ocean. Out of six known species in the genus Alviniconcha, only one nominal species of A. marisindica was found in the Indian Ocean from the Carlsberg Ridge (CR), Central Indian Ridge (CIR) to the northern part of Southwest Indian Ridge (SWIR) and Southeast Indian Ridge (SEIR). Recently, the Alviniconcha snails were found at three new vent fields, named Onnare, Onbada, and Onnuri, in the northern CIR, which promotes a more comprehensive phylogeographic study of this species. Here, we examined the phylogeography and connectivity of the Alviniconcha snails among seven vent fields representing the CR and CIR based on DNA sequence data of a mitochondrial COI gene and two protein-coding nuclear genes. Phylogenetic inferences revealed that the Alviniconcha snails of the newly found in the northern CIR and two vent fields of Wocan and Tianxiu in the CR were divergent with the previously identified A. marisindica in the southern CIR and mitochondrial COI data supported the divergence with at least greater than 3% sequence divergence. Population structure analyses based on the three genetic markers detected a phylogeographic boundary between Onnuri and Solitaire that divides the whole snail populations into northern and southern groups with a low migration rate. The high degree of genetic disconnection around the ‘Onnuri’ boundary suggests that the Alviniconcha snails in the Indian Ocean may undergo allopatric speciation. The border may similarly act as a dispersal barrier to many other vent species co-distributed in the CIR. This study would expand understanding the speciation and connectivity of vent species in the Indian Ocean.https://www.frontiersin.org/articles/10.3389/fmars.2023.1139190/fullhydrothermal ventAlviniconcha snailallopatric divergencemetapopulationCentral Indian RidgeCarlsberg Ridge |
spellingShingle | Sook-Jin Jang Soo-Yeon Cho Chuyu Li Yadong Zhou Hui Wang Jin Sun Ajit Kumar Patra Yong-Jin Won Geographical subdivision of Alviniconcha snail populations in the Indian Ocean hydrothermal vent regions Frontiers in Marine Science hydrothermal vent Alviniconcha snail allopatric divergence metapopulation Central Indian Ridge Carlsberg Ridge |
title | Geographical subdivision of Alviniconcha snail populations in the Indian Ocean hydrothermal vent regions |
title_full | Geographical subdivision of Alviniconcha snail populations in the Indian Ocean hydrothermal vent regions |
title_fullStr | Geographical subdivision of Alviniconcha snail populations in the Indian Ocean hydrothermal vent regions |
title_full_unstemmed | Geographical subdivision of Alviniconcha snail populations in the Indian Ocean hydrothermal vent regions |
title_short | Geographical subdivision of Alviniconcha snail populations in the Indian Ocean hydrothermal vent regions |
title_sort | geographical subdivision of alviniconcha snail populations in the indian ocean hydrothermal vent regions |
topic | hydrothermal vent Alviniconcha snail allopatric divergence metapopulation Central Indian Ridge Carlsberg Ridge |
url | https://www.frontiersin.org/articles/10.3389/fmars.2023.1139190/full |
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