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鸡基因组序列及比较分析为脊椎动物演化提供独特视角
Sequence and comparative analysis of the chicken genome provide unique perspectives on vertebrate evolution
Nature · 2004
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
鸡基因组草图约10亿碱基、估计2万至2.3万基因；与哺乳动物比较揭示保守功能区、鸟类微染色体及染色体同线性。
The roughly one-billion-base chicken draft genome, with an estimated 20,000–23,000 genes, reveals conserved functional elements, avian microchromosomes and vertebrate synteny through mammalian comparisons.
结论 Conclusions
较远缘鸟类参照可帮助区分保守调控序列与谱系特有变化。
A distant avian reference helps distinguish conserved regulatory sequences from lineage-specific changes.
Science仅摘要 Abstract onlyBMP 信号对趾间凋亡和鳞片形成的必要作用
Requirement for BMP signaling in interdigital apoptosis and scale formation.
Science · 1996
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
阻断鸡胚后肢 BMP 信号会减少趾间凋亡、产生蹼足并使鳞片转为羽毛。与鸭趾间组织的比较将信号差异与保留蹼膜联系起来。
Blocking BMP signaling in embryonic chicken hindlimbs reduces interdigital apoptosis, produces webbed feet and transforms scales into feathers. Comparisons with duck interdigits link signaling differences to retained webbing.
结论 Conclusions
发育信号变化可造成羊膜动物附肢形态的显著差异，包括指趾分离及皮肤附属结构。
Changes in developmental signaling can generate major differences in amniote appendage form, including digit separation and skin appendages.