High genetic differentiation of Indo‐Pacific humpback dolphins (Sousa chinensis) along the Asian Coast of the Pacific Ocean
Abstract The Indo‐Pacific humpback dolphin (Sousa chinensis) is a vulnerable marine mammal species that inhabits shallow, coastal waters from Southeast China, southward throughout Southeast Asia, and westward around the Bay of Bengal to eastern India. Polymorphic microsatellites are useful for eluci...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-05-01
|
| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.8901 |
| _version_ | 1817986373516263424 |
|---|---|
| author | Yufei Dai Watchara Sakornwimon Rachawadee Chantra Liyuan Zhao Fuxing Wu Reyilamu Aierken Kongkiat Kittiwattanawong Xianyan Wang |
| author_facet | Yufei Dai Watchara Sakornwimon Rachawadee Chantra Liyuan Zhao Fuxing Wu Reyilamu Aierken Kongkiat Kittiwattanawong Xianyan Wang |
| author_sort | Yufei Dai |
| collection | DOAJ |
| description | Abstract The Indo‐Pacific humpback dolphin (Sousa chinensis) is a vulnerable marine mammal species that inhabits shallow, coastal waters from Southeast China, southward throughout Southeast Asia, and westward around the Bay of Bengal to eastern India. Polymorphic microsatellites are useful for elucidating ecological and population genetics‐related questions. Here, 18 new polymorphic microsatellites were developed from S. chinensis genomic DNA by Illumina MiSeq sequencing. Population genetic analyses were conducted on 42 S. chinensis individuals from three geographic locations, including the Xiamen Bay of China, the Western Gulf of Thailand, and Andaman Sea. Our microsatellite data revealed a strong and significant population structure among the three sampling regions (overall FST = 0.371, p = .001). Pairwise mutual information index also demonstrated high levels of genetic differentiation between different region pairs (values range from 0.272 to 0.339, p < .001). Moreover, Structure analysis inferred three genetic clusters, with the high assignment probabilities of 95.92%, 99.47%, and 99.68%, respectively. Principal coordinate analysis plots of individuals divided entire genotypes into three clusters, indicating high level of genetic differentiation. Our results indicated the strong genetic structure in S. chinensis populations is a result of geographic distances. Other factors such as environmental variables, anthropogenic interference, and social behavior may also have contributed to population differentiation. |
| first_indexed | 2024-04-14T00:09:24Z |
| format | Article |
| id | doaj.art-37a79305e9d644228fc62c6ee2b9c9b9 |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-04-14T00:09:24Z |
| publishDate | 2022-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-37a79305e9d644228fc62c6ee2b9c9b92022-12-22T02:23:25ZengWileyEcology and Evolution2045-77582022-05-01125n/an/a10.1002/ece3.8901High genetic differentiation of Indo‐Pacific humpback dolphins (Sousa chinensis) along the Asian Coast of the Pacific OceanYufei Dai0Watchara Sakornwimon1Rachawadee Chantra2Liyuan Zhao3Fuxing Wu4Reyilamu Aierken5Kongkiat Kittiwattanawong6Xianyan Wang7Laboratory of Marine Biology and Ecology Third Institute of Oceanography Ministry of Natural Resources Xiamen ChinaMarine and Coastal Resources Research Center The Central Gulf of Thailand Chumphon ThailandMarine and Coastal Resources Research Center The Upper Gulf of Thailand Samut Sakhon ThailandLaboratory of Marine Biology and Ecology Third Institute of Oceanography Ministry of Natural Resources Xiamen ChinaLaboratory of Marine Biology and Ecology Third Institute of Oceanography Ministry of Natural Resources Xiamen ChinaLaboratory of Marine Biology and Ecology Third Institute of Oceanography Ministry of Natural Resources Xiamen ChinaPhuket Marine Biological Research Center Phuket ThailandLaboratory of Marine Biology and Ecology Third Institute of Oceanography Ministry of Natural Resources Xiamen ChinaAbstract The Indo‐Pacific humpback dolphin (Sousa chinensis) is a vulnerable marine mammal species that inhabits shallow, coastal waters from Southeast China, southward throughout Southeast Asia, and westward around the Bay of Bengal to eastern India. Polymorphic microsatellites are useful for elucidating ecological and population genetics‐related questions. Here, 18 new polymorphic microsatellites were developed from S. chinensis genomic DNA by Illumina MiSeq sequencing. Population genetic analyses were conducted on 42 S. chinensis individuals from three geographic locations, including the Xiamen Bay of China, the Western Gulf of Thailand, and Andaman Sea. Our microsatellite data revealed a strong and significant population structure among the three sampling regions (overall FST = 0.371, p = .001). Pairwise mutual information index also demonstrated high levels of genetic differentiation between different region pairs (values range from 0.272 to 0.339, p < .001). Moreover, Structure analysis inferred three genetic clusters, with the high assignment probabilities of 95.92%, 99.47%, and 99.68%, respectively. Principal coordinate analysis plots of individuals divided entire genotypes into three clusters, indicating high level of genetic differentiation. Our results indicated the strong genetic structure in S. chinensis populations is a result of geographic distances. Other factors such as environmental variables, anthropogenic interference, and social behavior may also have contributed to population differentiation.https://doi.org/10.1002/ece3.8901cetaceangenetic diversityhumpback dolphinmicrosatellite genotypingpopulation differentiation |
| spellingShingle | Yufei Dai Watchara Sakornwimon Rachawadee Chantra Liyuan Zhao Fuxing Wu Reyilamu Aierken Kongkiat Kittiwattanawong Xianyan Wang High genetic differentiation of Indo‐Pacific humpback dolphins (Sousa chinensis) along the Asian Coast of the Pacific Ocean Ecology and Evolution cetacean genetic diversity humpback dolphin microsatellite genotyping population differentiation |
| title | High genetic differentiation of Indo‐Pacific humpback dolphins (Sousa chinensis) along the Asian Coast of the Pacific Ocean |
| title_full | High genetic differentiation of Indo‐Pacific humpback dolphins (Sousa chinensis) along the Asian Coast of the Pacific Ocean |
| title_fullStr | High genetic differentiation of Indo‐Pacific humpback dolphins (Sousa chinensis) along the Asian Coast of the Pacific Ocean |
| title_full_unstemmed | High genetic differentiation of Indo‐Pacific humpback dolphins (Sousa chinensis) along the Asian Coast of the Pacific Ocean |
| title_short | High genetic differentiation of Indo‐Pacific humpback dolphins (Sousa chinensis) along the Asian Coast of the Pacific Ocean |
| title_sort | high genetic differentiation of indo pacific humpback dolphins sousa chinensis along the asian coast of the pacific ocean |
| topic | cetacean genetic diversity humpback dolphin microsatellite genotyping population differentiation |
| url | https://doi.org/10.1002/ece3.8901 |
| work_keys_str_mv | AT yufeidai highgeneticdifferentiationofindopacifichumpbackdolphinssousachinensisalongtheasiancoastofthepacificocean AT watcharasakornwimon highgeneticdifferentiationofindopacifichumpbackdolphinssousachinensisalongtheasiancoastofthepacificocean AT rachawadeechantra highgeneticdifferentiationofindopacifichumpbackdolphinssousachinensisalongtheasiancoastofthepacificocean AT liyuanzhao highgeneticdifferentiationofindopacifichumpbackdolphinssousachinensisalongtheasiancoastofthepacificocean AT fuxingwu highgeneticdifferentiationofindopacifichumpbackdolphinssousachinensisalongtheasiancoastofthepacificocean AT reyilamuaierken highgeneticdifferentiationofindopacifichumpbackdolphinssousachinensisalongtheasiancoastofthepacificocean AT kongkiatkittiwattanawong highgeneticdifferentiationofindopacifichumpbackdolphinssousachinensisalongtheasiancoastofthepacificocean AT xianyanwang highgeneticdifferentiationofindopacifichumpbackdolphinssousachinensisalongtheasiancoastofthepacificocean |