Anatomy of the Critically-Endangered Anji Salamander (Hynobius amjiensis) Provides New Insights Into Morphological Evolution of Salamanders
文献类型：期刊论文
| 作者 | Chen, Cang-Song2; Jia, Jia3; Wang, Xian-Ting1; Yang, Jia2; Gao, Ke-Qin4 |
| 刊名 | JOURNAL OF MORPHOLOGY
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 286期号:2页码:11 |
| 关键词 | anatomy
critically-endangered species
|
| ISSN号 | 0362-2525 |
| DOI | 10.1002/jmor.70028 |
| 通讯作者 | Jia, Jia(jiajia@ivpp.ac.cn) ; Gao, Ke-Qin(kqgao@pku.edu.cn) |
| 英文摘要 | The Anji Salamander (Hynobius amjiensis) is a critically-endangered amphibian endemic to the Tianmushan Mountain area in southeastern China. As most of its congeneric species in the ancestral salamander family Hynobiidae, the osteology of H. amjiensis has remained essentially unknown and has hampered efforts in understanding morphological evolutionary patterns of early salamanders. Here, we investigate the skeletal anatomy of H. amjiensis based on microcomputed tomography scans of post-metamorphosed juvenile and adult specimens. Our results reveal Hynobiidae has more early-tetrapod-like plesiomorphic characters than expected, as H. amjiensis has a stapedial foramen in the middle ear and two centralia and a centrale-radius contact in the limb. We demonstrate that Hynobius amjiensis is the first known living salamander species with a stapedial foramen whose absence was believed to unite salamanders and anurans, and hence opens major questions on the evolution of the middle ear in modern amphibians: if some salamanders and caecilians had a stapedial foramen inherited from their common ancestor, when and how many times was the foramen lost independently in modern amphibians, and how did this structural loss impact the phylogenetic evolution of salamander clades? Our findings of hyper-ossified pectoral and pelvic girdles and loss of postminimus in the pes in H. amjiensis demonstrate that functional morphological features in hynobiids are potentially informative in phylogeny and ontogeny of early salamanders. |
| WOS关键词 | CAUDATA HYNOBIIDAE ; COLUMELLA AURIS ; PHYLOGENY ; AMPHIBIA ; APPARATUS |
| 资助项目 | This research was supported by the National Natural Science Foundation of China (NSFC 41872008, 41702002) and the Natural Science Foundation of Zhejiang (LTGS23C030003 and LGN19C040002).[NSFC 41872008] ; This research was supported by the National Natural Science Foundation of China (NSFC 41872008, 41702002) and the Natural Science Foundation of Zhejiang (LTGS23C030003 and LGN19C040002).[41702002] ; National Natural Science Foundation of China[LTGS23C030003] ; National Natural Science Foundation of China[LGN19C040002] ; Natural Science Foundation of Zhejiang |
| WOS研究方向 | Anatomy & Morphology |
| 语种 | 英语 |
| WOS记录号 | WOS:001408660700001 |
| 出版者 | WILEY |
| 资助机构 | This research was supported by the National Natural Science Foundation of China (NSFC 41872008, 41702002) and the Natural Science Foundation of Zhejiang (LTGS23C030003 and LGN19C040002). ; National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang |
| 源URL | [http://119.78.100.205/handle/311034/24264]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Jia, Jia; Gao, Ke-Qin |
| 作者单位 | 1.Anji Salamander Natl Nat Reserve Management Ctr, Huzhou, Zhejiang, Peoples R China 2.Zhejiang Museum Nat Hist, Hangzhou, Zhejiang, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China 4.Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Cang-Song,Jia, Jia,Wang, Xian-Ting,et al. Anatomy of the Critically-Endangered Anji Salamander (Hynobius amjiensis) Provides New Insights Into Morphological Evolution of Salamanders[J]. JOURNAL OF MORPHOLOGY,2025,286(2):11. |
| APA | Chen, Cang-Song,Jia, Jia,Wang, Xian-Ting,Yang, Jia,&Gao, Ke-Qin.(2025).Anatomy of the Critically-Endangered Anji Salamander (Hynobius amjiensis) Provides New Insights Into Morphological Evolution of Salamanders.JOURNAL OF MORPHOLOGY,286(2),11. |
| MLA | Chen, Cang-Song,et al."Anatomy of the Critically-Endangered Anji Salamander (Hynobius amjiensis) Provides New Insights Into Morphological Evolution of Salamanders".JOURNAL OF MORPHOLOGY 286.2(2025):11. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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