鳄鱼的文献研究摘要 / 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濒危扬子鳄基因组分析及其潜水与感觉特征相关信号的发现
Genome analysis and signature discovery for diving and sensory properties of the endangered Chinese alligator
Cell research · 2013
依据索引收录的作者摘要概括。
Summary based on the indexed author abstract.
以扬子鳄研究代表清单中广义的鳄类条目。
Chinese alligator study represents the broad crocodilian entry.
主要发现 Key findings
扬子鳄约2.3 Gb基因组揭示与血红蛋白、能量代谢、嗅觉及感觉系统有关的复制、扩张与选择信号。
The approximately 2.3 Gb Chinese alligator genome reveals duplication, expansion and selection signals involving haemoglobin, energy metabolism, olfaction and sensory systems.
结论 Conclusions
这些基因组关联为潜水与感觉适应提出候选机制，仍需与功能实验相结合。
The genomic associations propose mechanisms for diving and sensory adaptations that require functional testing.
Science仅摘要 Abstract only三个鳄类基因组揭示初龙类祖先演化模式
Three crocodilian genomes reveal ancestral patterns of evolution among archosaurs.
Science · 2014
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
美洲短吻鳄、湾鳄和恒河鳄基因组在序列、基因家族、转座元件和染色体共线性等层面均变化极慢。与鸟类比较可重建部分初龙类祖先基因组。
American alligator, saltwater crocodile and gharial genomes show exceptionally slow changes across sequence, gene families, transposable elements and chromosomal synteny. Comparisons with birds reconstruct parts of the ancestral archosaur genome.
结论 Conclusions
缓慢基因组演化可能是这些爬行动物的祖征，鸟类较快的演化速率则为衍生状态；这些基因组提供初龙类分化基线。
Slow genomic evolution may be ancestral for these reptiles, with faster rates derived in birds; the genomes provide a baseline for archosaur diversification.
PNAS全文 PDF特化干细胞微环境使鳄鱼牙齿能够重复更新
Specialized stem cell niche enables repetitive renewal of alligator teeth.
PNAS · 2013
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
鳄鱼每颗牙齿与替代牙及牙板组成单元。牙板膨大区的静息祖细胞在换牙时被激活，并伴随β-catenin及微环境信号变化。
Each alligator tooth forms a unit with a replacement tooth and dental lamina. Quiescent progenitors in a lamina bulge activate during tooth replacement, alongside changing beta-catenin and niche signals.
结论 Conclusions
重复换牙依赖持续存在的祖细胞微环境和协调信号，为哺乳动物牙再生提供比较模型。
Repeated tooth renewal depends on a maintained progenitor niche and coordinated signaling, offering a comparative model for mammalian tooth regeneration.