乌龟的文献研究摘要 / Publication research summaries · 3 entries
中文内容为资料集译写。每条说明所依据的摘要或正文范围。 / Chinese text is prepared for this collection. Summary evidence is identified for each entry.
Nature全文 PDF龟类背甲的内骨骼起源
The endoskeletal origin of the turtle carapace
Nature communications · 2013
依据索引收录的作者摘要概括。
Summary based on the indexed author abstract.
主要发现 Key findings
龟胚胎及化石比较显示肋板与椎板在较深结缔组织而非真皮内发育，背甲主要来自内骨骼肋骨系统。
Embryological and fossil comparisons show costal and neural plates developing in deeper tissues rather than the dermis, supporting a chiefly endoskeletal rib origin of the carapace.
结论 Conclusions
龟背甲不能简单解释为外部皮骨板与肋骨融合。
The turtle carapace cannot be explained simply as external osteoderms fusing with ribs.
Science仅摘要 Abstract only龟类身体构型通过折叠与建立新肌肉连接而演化
Evolution of the turtle body plan by the folding and creation of new muscle connections.
Science · 2009
依据作者摘要概括。
Inspected PubMed abstract indexed by Europe PMC; archived full text does not imply full-text review.
主要发现 Key findings
比较胚胎学显示龟类早期遵循一般羊膜动物身体模式，随后肋骨侧向生长改变骨骼位置，一些肢体肌肉建立龟类特有的新附着点。
Comparative embryology shows that turtles initially follow the general amniote body plan. Lateral rib growth then shifts skeletal positions, while some limb muscles develop new turtle-specific attachments.
结论 Conclusions
龟类身体构型可通过共同发育框架中的空间重排和新肌骨连接形成。
The turtle body plan can arise by spatial rearrangement and novel musculoskeletal connections within a shared developmental framework.
PNAS全文 PDF龟类定义性骨骼结构腹甲的发育
Development of the turtle plastron, the order-defining skeletal structure.
PNAS · 2016
依据作者摘要概括。
Inspected PubMed abstract indexed by Europe PMC; archived full text does not imply full-text review.
主要发现 Key findings
巴西龟腹甲骨凝聚区选择成骨命运并抑制软骨形成，其发生时间与鸡、小鼠胸骨软骨发育及龟类背甲嵴形成相重叠。
Plastron-bone condensations in Trachemys scripta adopt an osteogenic fate while suppressing cartilage formation. Their timing overlaps development of sternal cartilage in chicks and mice and carapacial-ridge formation in turtles.
结论 Conclusions
背腹甲协调发育及骨与软骨细胞命运改变，有助于解释龟类特有的腹侧身体构型。
Coordinated dorsal and ventral shell development and altered bone-versus-cartilage cell fate help explain the turtle-specific ventral body plan.