The shoulder girdle of early chondrichthyans grew by skeletal remodelling
文献类型：期刊论文
| 作者 | Andreev, Plamen S.2,3,4; Zhu, Min5,6,7; Brakenhoff, Lars3; Li, Qiang2,5; Zhao, Wenjin5,6,7; Peng, Lijian2; Marone, Federica1; Dearden, Richard P.3,4; Rucklin, Martin3,8 |
| 刊名 | BIOLOGY LETTERS
 |
| 出版日期 | 2025-09-24 |
| 卷号 | 21期号:9页码:8 |
| 关键词 | bone resorption Silurian dermal skeleton dentine jawed vertebrates fin spine |
| ISSN号 | 1744-9561 |
| DOI | 10.1098/rsbl.2025.0411 |
| 英文摘要 | A distinct shoulder region, defined by endoskeletal and dermal girdles and associated pectoral musculature, is a major evolutionary adaptation of jawed vertebrates. In teleost model species, the large (macromeric) pectoral dermal bones can be derived from multiple embryonic tissues, identifying the shoulder of osteichthyans as a developmentally complex area at the head-trunk boundary. The absence of bone in living chondrichthyans makes Palaeozoic stem groups capable of dermal ossification key to understanding the underpinnings of skeletal growth in the shoulder of crown gnathostomes (osteichthyans and chondrichthyans). Here, using synchrotron X-ray tomography we demonstrate that individual pectoral plates in the oldest unequivocal jawed vertebrate, the Silurian (c. 439 Mya) chondrichthyan Fanjingshania renovata, develop from five separate growth centres. These centres correspond to pectoral bony spines that fuse neighbouring dermal scales into a pinnal plate and their expansion is accompanied by cyclical resorption and remodelling of bone and dentine. Our phylogenetic analyses support an interpretation of these processes as crown and stem gnathostome characters that co-occur only in the shoulder girdle of stem chondrichthyans. The systematic hard tissue remodelling in Fanjingshania reveals an unexpected growth dynamic within chondrichthyans that relates to the formation of a macromeric skeleton through integration of modular elements. |
| WOS关键词 | PAIRED FINS ; EVOLUTION ; ORIGIN ; BONE ; FISH ; VERTEBRATES ; PLACODERM ; DENTITION ; HISTOLOGY ; CEMENT |
| 资助项目 | Yunnan Province Young and Middle-Aged Academic and Technical Leaders Reserve Talents Program |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001577394500001 |
| 出版者 | ROYAL SOC |
| 源URL | [http://119.78.100.205/handle/311034/24977]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Andreev, Plamen S. |
| 作者单位 | 1.Paul Scherrer Inst, Swiss Light Source, Villigen, Switzerland 2.Qujing Normal Univ, Res Ctr Nat Hist & Culture, Qujing, Peoples R China 3.Nat Biodivers Ctr, Dept Understanding Evolut, Leiden, Netherlands 4.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham, England 5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key CAS Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 6.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 7.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 8.Leiden Univ, Inst Biol, Leiden, Netherlands |
| 推荐引用方式 GB/T 7714 | Andreev, Plamen S.,Zhu, Min,Brakenhoff, Lars,et al. The shoulder girdle of early chondrichthyans grew by skeletal remodelling[J]. BIOLOGY LETTERS,2025,21(9):8. |
| APA | Andreev, Plamen S..,Zhu, Min.,Brakenhoff, Lars.,Li, Qiang.,Zhao, Wenjin.,...&Rucklin, Martin.(2025).The shoulder girdle of early chondrichthyans grew by skeletal remodelling.BIOLOGY LETTERS,21(9),8. |
| MLA | Andreev, Plamen S.,et al."The shoulder girdle of early chondrichthyans grew by skeletal remodelling".BIOLOGY LETTERS 21.9(2025):8. |
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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