Genomic analyses reveal three phylogenetic species and their evolutionary histories in the big-headed turtle
Summary: The critically endangered big-headed turtle (Platysternon megacephalum) is currently classified into three subspecies. However, the classification is still controversial and their evolutionary histories are still unclear. Here, multiple genetic analyses consistently revealed three phylogene...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004223014207 |
| _version_ | 1797774850787377152 |
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| author | Shiping Gong Chatmongkon Suwannapoom Minh Le Truong Quang Nguyen Yan Ge Yufeng Wei Yangchun Gao |
| author_facet | Shiping Gong Chatmongkon Suwannapoom Minh Le Truong Quang Nguyen Yan Ge Yufeng Wei Yangchun Gao |
| author_sort | Shiping Gong |
| collection | DOAJ |
| description | Summary: The critically endangered big-headed turtle (Platysternon megacephalum) is currently classified into three subspecies. However, the classification is still controversial and their evolutionary histories are still unclear. Here, multiple genetic analyses consistently revealed three phylogenetic groups with substantial genetic divergences and distinct demographic histories, suggesting three phylogenetic species (P. megacephalum, P. peguense, and Baise clade). Phylogeographical analyses revealed that the Red River plains and Guangxi basins are largely coincident with the boundaries between the three phylogenetic species, highlighting the key role of lowland areas in driving speciation in the big-headed turtle. The Baise clade is characterized by high-linkage disequilibrium but the lowest effective population size, indicating that the cryptic phylogenetic species is more vulnerable to human activities and environmental disturbance, and urgently needs more protection. Our findings provide fundamental insights into the taxonomy and scientific conservation of the family Platysternidae. |
| first_indexed | 2024-03-12T22:27:14Z |
| format | Article |
| id | doaj.art-f48917adde3048e099efa7e7bb72c24a |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-03-12T22:27:14Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-f48917adde3048e099efa7e7bb72c24a2023-07-22T04:52:33ZengElsevieriScience2589-00422023-08-01268107343Genomic analyses reveal three phylogenetic species and their evolutionary histories in the big-headed turtleShiping Gong0Chatmongkon Suwannapoom1Minh Le2Truong Quang Nguyen3Yan Ge4Yufeng Wei5Yangchun Gao6College of Life Science and Technology, Jinan University, Guangzhou 510632, China; Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, 105 Xingang Road West, Guangzhou 510260, ChinaSchool of Agriculture and Natural Resources, University of Phayao, Phayao 56000, ThailandFaculty of Environmental Sciences, University of Science & Central Institute for Natural Resources and Environmental Studies (CRES), Vietnam National University, Hanoi, VietnamInstitute of Ecology and Biological Resources, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi 10072, VietnamGuangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, 105 Xingang Road West, Guangzhou 510260, ChinaGuangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, 105 Xingang Road West, Guangzhou 510260, ChinaGuangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, 105 Xingang Road West, Guangzhou 510260, China; Corresponding authorSummary: The critically endangered big-headed turtle (Platysternon megacephalum) is currently classified into three subspecies. However, the classification is still controversial and their evolutionary histories are still unclear. Here, multiple genetic analyses consistently revealed three phylogenetic groups with substantial genetic divergences and distinct demographic histories, suggesting three phylogenetic species (P. megacephalum, P. peguense, and Baise clade). Phylogeographical analyses revealed that the Red River plains and Guangxi basins are largely coincident with the boundaries between the three phylogenetic species, highlighting the key role of lowland areas in driving speciation in the big-headed turtle. The Baise clade is characterized by high-linkage disequilibrium but the lowest effective population size, indicating that the cryptic phylogenetic species is more vulnerable to human activities and environmental disturbance, and urgently needs more protection. Our findings provide fundamental insights into the taxonomy and scientific conservation of the family Platysternidae.http://www.sciencedirect.com/science/article/pii/S2589004223014207Biological classificationEvolutionary biologyPhylogeneticsZoology |
| spellingShingle | Shiping Gong Chatmongkon Suwannapoom Minh Le Truong Quang Nguyen Yan Ge Yufeng Wei Yangchun Gao Genomic analyses reveal three phylogenetic species and their evolutionary histories in the big-headed turtle iScience Biological classification Evolutionary biology Phylogenetics Zoology |
| title | Genomic analyses reveal three phylogenetic species and their evolutionary histories in the big-headed turtle |
| title_full | Genomic analyses reveal three phylogenetic species and their evolutionary histories in the big-headed turtle |
| title_fullStr | Genomic analyses reveal three phylogenetic species and their evolutionary histories in the big-headed turtle |
| title_full_unstemmed | Genomic analyses reveal three phylogenetic species and their evolutionary histories in the big-headed turtle |
| title_short | Genomic analyses reveal three phylogenetic species and their evolutionary histories in the big-headed turtle |
| title_sort | genomic analyses reveal three phylogenetic species and their evolutionary histories in the big headed turtle |
| topic | Biological classification Evolutionary biology Phylogenetics Zoology |
| url | http://www.sciencedirect.com/science/article/pii/S2589004223014207 |
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